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WO2007000560A1 - Convertisseur de puissance a bus courant continu et sorties courant continu programmables multiples - Google Patents

Convertisseur de puissance a bus courant continu et sorties courant continu programmables multiples Download PDF

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Publication number
WO2007000560A1
WO2007000560A1 PCT/GB2005/002535 GB2005002535W WO2007000560A1 WO 2007000560 A1 WO2007000560 A1 WO 2007000560A1 GB 2005002535 W GB2005002535 W GB 2005002535W WO 2007000560 A1 WO2007000560 A1 WO 2007000560A1
Authority
WO
WIPO (PCT)
Prior art keywords
power converter
power
converter according
output
ports
Prior art date
Application number
PCT/GB2005/002535
Other languages
English (en)
Inventor
Alan Ross
Original Assignee
Alan Ross
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Alan Ross filed Critical Alan Ross
Priority to PCT/GB2005/002535 priority Critical patent/WO2007000560A1/fr
Priority to GB0801261A priority patent/GB2441949B/en
Publication of WO2007000560A1 publication Critical patent/WO2007000560A1/fr

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/26—Power supply means, e.g. regulation thereof
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0013—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries acting upon several batteries simultaneously or sequentially
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0042—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by the mechanical construction
    • H02J7/0044—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by the mechanical construction specially adapted for holding portable devices containing batteries
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0042—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by the mechanical construction
    • H02J7/0045—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by the mechanical construction concerning the insertion or the connection of the batteries
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M1/00—Details of apparatus for conversion
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M1/00—Details of apparatus for conversion
    • H02M1/32—Means for protecting converters other than automatic disconnection
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M3/00—Conversion of DC power input into DC power output
    • H02M3/02—Conversion of DC power input into DC power output without intermediate conversion into AC
    • H02M3/04—Conversion of DC power input into DC power output without intermediate conversion into AC by static converters
    • H02M3/10—Conversion of DC power input into DC power output without intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
    • H02M3/145—Conversion of DC power input into DC power output without intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
    • H02M3/155—Conversion of DC power input into DC power output without intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J2310/00—The network for supplying or distributing electric power characterised by its spatial reach or by the load
    • H02J2310/10—The network having a local or delimited stationary reach
    • H02J2310/20—The network being internal to a load
    • H02J2310/22—The load being a portable electronic device
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0047—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with monitoring or indicating devices or circuits
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M1/00—Details of apparatus for conversion
    • H02M1/0067—Converter structures employing plural converter units, other than for parallel operation of the units on a single load
    • H02M1/008—Plural converter units for generating at two or more independent and non-parallel outputs, e.g. systems with plural point of load switching regulators

Definitions

  • This invention relates to a Power Converter Unit (PCU), which can be used during the normal operating mode of multiple mobile electronic devices, such as laptop computers, and for recharging their batteries.
  • PCU Power Converter Unit
  • Mobile electronic devices such as laptop computers, are designed for normal operation using batteries usually fitted internally within the device.
  • the manufacturers of these devices normally provide a power converter suitable for transforming the normal domestic mains power supply parameters into a form suitable for use not only to recharge the internal batteries but also to provide the power required for normal operation.
  • These power converters contain an analogue transformer to reduce the normal domestic mains voltage as required.
  • a smart battery charging system with reduced power consumption (GB 2 341 284 A) is known.
  • This system is a set of batteries and a charger for use with a laptop. This has its own batteries, allowing for extended run time of a laptop, and the charger is designed to reduce power consumption.
  • This charger requires a standard power supply with transformer to run it and therefore this system has the same disadvantages as those outlined above when multiple individual chargers are used in parallel to supply multiple laptop computers.
  • a universal power supply (US 6,459,175 Bl) is also known. It is claimed that this
  • the connection to the mobile electronic device is made through the battery interface, rather than the external power supply, claiming to save the need for multiple adapters.
  • the external power socket of the invention is always easily available as it is designed to be used regularly. Again this charger is designed to be able to power only one device at a time and therefore this system has the same current surge and Health and Safety disadvantages as those outlined above when multiple chargers are used in parallel to supply multiple laptop computers.
  • a power supply with integrated DC supplies for external devices and universal cable (WO 2004/068324 Al). This basically replaces conventional power strips or power socket extensions by providing some fixed voltage DC sockets for peripheral devices to be fitted. This device cannot supply the varied range of voltage /current configurations needed by the number and plurality of laptop types in use. It also does not overcome the problem of excessive current surge and health and safety trip hazards arising from use of conventional power strips or power extension sockets. It also cannot provide the audio/visual warnings and failsafe cut-outs to prevent potential damage to laptops if the safe limits are exceeded.
  • An electrical power distribution system (US patent 5,477,091) which comprises a central module supplying a distribution network. This system is essentially designed for use in office blocks or industrial sites to distribute AC and DC power between offices. It does not address the problem of limited power sockets in a classroom resulting in surges of current and cannot be used in the classroom or in cabinets for overnight charging of laptops or other similar purposes as the present invention does.
  • "transformer” shall include any means for changing the parameters a power supply.
  • a power converter system suitable for transforming the normal domestic mains power supply parameters from a single domestic socket, in a school classroom for example, into a form suitable for simultaneously recharging the batteries for multiple laptop computers or to provide the power required for their normal use.
  • the Power Converter Unit is provided with a series of "ports", each of which can be separately configured or configured in user selectable groups to provide the specified power parameters for the connected device or devices. It is also provided with adapters and connectors to cater for wide variety of types and polarity of power connector provided by the manufacturers of the laptop computers.
  • Each port also has visual outputs to indicate the charging status (i.e. uncharged, partially charged and charged) of the rechargeable battery of the laptop computer or other device. Ports can also have an audio and visual output to give warning of incorrect usage or connection from that port to the laptop computer or other device and a failsafe cut-out mechanism to shut down the port if the specified safe load is exceeded. LED's are provided on the unit itself and in addition, external LEDS can be provided as remote indicators of charging status. Connectors at the rear of the power converter system permit the output voltages to be configured by a computer
  • Connectors at the rear enable connection of an external set of
  • LED' s and a remote configuring module which module enables the power converter itself to be placed within a cabinet or attached to the inaccessible underside of furniture, for example.
  • a series of electrical connectors and cables is provided to link the power converter system to any proprietary laptop computer or other device to be powered or charged from the system.
  • the Power Converter Unit can use a small number, which may be one, of electrical transformers to supply power to multiple laptop computers using a system of standard cables with inter changeable tips (to suit each laptop type/model). This unit is very efficient and the current surge on switching on the supply is much reduced compared with multiple chargers connected in parallel. This makes it possible for multiple laptop computers to be powered or charged from a single standard 13 -amp socket without tripping the ring mains as would occur if the laptops own chargers were used.
  • the Power Converter Unit is very quiet in operation, making it ideal for use in classrooms or offices. The fact that individual power converters are not required for each laptop significantly reduces the numbers of trailing wires and trip hazards and hence reduces Health and Safety risks in schools.
  • the basic Multicharger / Power Converter Unit can be deployed /used in a number of ways as follows and some typical situations and illustrative embodiments of this invention are shown in figures 1-5 and outlined below.
  • 1 As a Multicharger unit to charge up laptop batteries within a mobile IT suite or laptop storage cabinet.
  • Figure 1 shows the unit placed in the rear compartment of a laptop cabinet 1.
  • AC Power 2 is supplied to the unit 3 and it provides, via its 8 or 12
  • FIG. 2 As a standalone power supply for laptops in use in a classroom.
  • Figure 2 shows the Power Converter Unit 6 with cooling fans 25 connected to a single AC power socket 24 in a classroom.
  • the unit then supplies the required power to allow a number of (in this case, eight) different laptops 7-14 to be operated without the need for their individual transformers.
  • the power converter unit can either be placed in the middle of a large table with individual cables 15-22 radiating out from the unit ports to each laptop or it can be placed in the centre of a long bench table with cables of different lengths coming out from each side to serve a number of laptops to each side of the unit.
  • LEDs 23 provide information on the status of each port and the device connected to it.
  • FIG. 3 As an integral part of furniture to create an IT desk or table.
  • Figure 3 shows the Power Converter Unit 26 attached with brackets to the underside of a desk or table 27.
  • a single cable provides AC power to the unit and the unit then is used to deliver the required voltage/current configuration as required for the individual laptops to be used on that table.
  • the unit can be configured with proprietary software via a remote panel 28 easily accessible from the top of the table.
  • the cables (from the individual ports (typically eight or twelve) on the power converter unit are run along the underside of the table to flap covered holes 29-36 where they can be accessed for connection to laptops as and when necessary.
  • the cables can be standardised with only the appropriate tips needing to be changed for whichever laptops are to be used.
  • the power requirements (voltage/current) for the ports serving each laptop can be set via the proprietary software using the remote connection which is linked to the Power Converter Unit and enables it to be easily reconfigured for different laptop types or other low voltage electrical devices as needed.
  • FIG. 4 As a standalone laptop battery charger.
  • Figure 4 shows that another possible use of the device is to charge up laptop batteries remotely.
  • This consists of the electronics from the Power Converter Unit being placed in a housing 37 powered by a connection to the AC mains 38 and attached to a universal stall or charging bay arrangement 39 where varying numbers of laptop batteries (not shown) could be charged up outside the laptop while the laptop itself is in use elsewhere powered by another multicharger unit.
  • the appropriate connectors (not shown) would need to be used within each stall for each type of laptop battery.
  • the Power converter unit would operate as it does in the laptop cabinets/mobile IT suites supplying the required voltage/current as appropriate to charge up each laptop battery.
  • FIG. 5 As a convenient multicharger for international travellers.
  • AC supply is provided via a single adapter plug 40.
  • the laptops own transformer 41 (redesigned to incorporate the multicharger technology of the present invention) now splits the available power permitting adequate power to be delivered to the laptop 43 via its power cable 42 and diverting part of the power to serve a number of ports (only four are shown here 44-47).
  • These can either deliver fixed preset (manually or via software) voltages and DC current or can be adjustable values set via a toggle switch 48 with values displayed 49-50 beside each port.
  • the ports can power/charge up all the various devices typically carried by business travellers when travelling overseas such as electric toothbrush 51, mobile printer 52, mobile phone 53, pda 54 etc.
  • This basic approach of diverting excess power to power other devices could also be applied to desktop computers by converting the multicharger device into a pc card (not shown) which could be inserted into the desktop pc card slots manage the incoming power supply and to make part of it available for peripheral devices so that all peripherals can be connected through the computer (via a number of external ports) rather than each device requiring its own transformers and mains power connections, thereby eliminating the tangle of wires, extension leads and fire risks which currently exist under/beside most desks where desktop computers are used.
  • the first 2 examples show a design based on firmware /software control of the power supplied using a processor to control many of the functions and operations required.
  • the second 2 examples show a design based more on control via hardware and electronic components.
  • mains electricity is converted to direct current using one or more Power Supply Units (PSUs) such as a Power Research Technologies PRN300M-8 unit, (not shown) which can operate on ether 11Ov or 24Ov supply . This would allow mains electricity to vary from 110V to 240V without affecting the multi charger unit .
  • PSUs Power Supply Units
  • PRN300M-8 unit not shown
  • Examples 1 and 2 (based on software /firmware controls) comprise a standard multicharger & power converter unit for use in classrooms or offices and a smaller, more portable power converter unit for use by international travellers.
  • Example 1 the standard multi charger, is represented by Figures 6-9, which show schematic diagrams of the key elements of the power converter system.
  • Figure 6 shows the processor and interface.
  • Figure 7 shows two sets of the core circuit. This core circuit can be repeated as many times as needed depending upon the number of ports to be served.
  • Figure 8 shows the output processing and audio/visual outputs.
  • Figure 9 shows the current limiter circuit as a fail safe device to prevent damage to the connected devices or the unit.
  • the communications connections between the elements on different Figures are shown alphabetically (e.g. "a” in Figure 6 connects to "a” in Figure 7 and "c" in Figure 6 connects to "c” in Figure 8 etc).
  • a fixed direct current supply 55 is provided to known DC-DC converters 56, which regulate the output voltage.
  • the output from these can be adjusted by a processor 57.
  • This processor 57 sends a signal to digital potentiometers 58, to adjust their resistance settings to change the resistance in the circuit in order to adjust the output from the digital DC-DC converters 56.
  • This programmed potential set individually or as a group by the processor 57 for each output port 62 can be reset to new values through a standard external interface 59 by a personal computer (not shown) using proprietary software. These settings are stored and retained in memory even when the power converter system is disconnected from the mains electricity.
  • current sensors 61 detect the current being drawn by any device attached to a port. These current sensors 61 send an output current signal f through a current limiter 66 and as a current signal h through a multiplexer 60 to the processor 57. The multiplexer switches the individual port outputs to the processor 57 one at a time and in sequence. The current limiter 66 limits the current up to a specified value for external device safety, causing port shutdown 67 if current is above the limit. The output voltage signal g is also sent to the processor 57 through a multiplexer 60.
  • the output ports 62 supply the preset potential 63 to the connected device through cables (not shown) with appropriate connectors at each end to link the port to the device.
  • An external device may send and receive a signal d and from the processor 57 to indicate any special configuration which might be needed from any device. Information is received by the processor 57 and after comparison with predefined criteria and further processing 64, audio/visual warnings 65 are initiated as necessary.
  • a signal may be sent from an output port to a connected device to read the said device's power requirements and the power output from the port may be set to match the said requirements of the device.
  • Example 2 illustrates another application of the invention and Figures 10-13 show schematic diagrams of a more portable power converter system.
  • Figure 10 shows the possible interfaces, both manual 77 and via proprietary software 70 (e.g. a microprocessor).
  • Figure 11 shows two different versions of the core circuit, one with fixed output voltages and one permitting voltages to be adjusted. These core circuits can be repeated as many times as needed depending upon the number and type (fixed or variable voltage) of ports to be served.
  • the output processing and visual outputs are represented in Figure 12.
  • Figure 13 shows the current limiter circuit as a fail-safe device to prevent damage to the unit.
  • the communications connections between the elements on different Figures of Example 2 are shown alphabetically (e.g. "a" in Figure 10 connects to "a” in Figure 11 while “b” in Figure 10 connects to "b” in Figure 12).
  • the mains electricity which is typically 110 volts or 240 volts alternating current is converted to direct current 66 using an existing laptop charger (not shown). Part of the power is allowed to pass straight through 72 the unit to power the laptop and a small part of it is diverted to power other devices connected to the ports 73.
  • This provides a fixed direct current (DC) supply 66 to known DC-DC converter 68, which regulates the output voltage.
  • DC direct current
  • the voltage may be permanently fixed using a fixed voltage regulator 69 or left variable to be set as required.
  • the resistance setting on the digital potentiometers 67 is adjusted manually or via software to change the resistance in the circuit to adjust the output from the DC-DC converter 68. This means the output ports 73 will continue to supply the programmed potential 74 once it has been set.
  • current sensors 71 detect the current being drawn by any device attached to a port. These current sensors 71 send an output current signal c to the software 70 through a current limiter 78 and a multiplexer 80. The multiplexer switches the individual port outputs to the software 70 one at a time and in sequence. The current limiter 78 limits the current up to a value for external device safety, causing port shutdown 79 if current is above the limit. The output voltage signal d is also sent to the software 70 through a multiplexer 80.
  • the output ports 73 supply the preset potential 74 to the connected device through cables (not shown) with appropriate fixed or interchangeable connectors/tips at each end to link the port to the device.
  • Examples 3 and 4 show embodiments of the invention where most of the controls and functions are undertaken via hardware and components. For convenience and easier comparison, the same two units as used in earlier examples (ie a standard power converter unit and the second a smaller, more portable power converter unit) are described as Examples 3 and 4 respectively .
  • Example 3 is represented by figures 14- 16, which show schematic diagrams of the key elements of the power converter system. Figure 14 shows the processor and interface. Figure 15 shows 2 sets of the core circuit. This core circuit can be repeated as many times as needed depending
  • Figure 16 shows the output processing and audio/visual outputs.
  • the communications connections between the elements on different figures are shown alphabetically (e.g. "a” in figure 14 connects to “a” in figure 15 and “c” in figure 15 connects to “c” in figure 16 etc).
  • the mains electricity ( typically 11Ov or 24Ov) is converted to direct current using one or more Power Supply Units (PSUs) such as Power Research Technologies PRN 300M-8 units (not shown).
  • PSUs Power Supply Units
  • This provides a fixed direct current supply 81 to known digital switch mode transformers 82, which regulate the output voltage.
  • the output from these can be adjusted by a proprietary processor 83.
  • This processor 83 sends a signal to the known digital potentiometers 84, to adjust their resistance settings to change the resistance in the circuit in order to adjust the output from the digital switch mode transformers 82.
  • This programmed potential set by the processor 83 for each output port 87 can be reset to new values through a standard external interface 85 by a personal computer (not shown) using proprietary software. These settings are stored in memory even when the power converter system is disconnected from the mains electricity.
  • the known current sensors 86 detect the current being drawn by any device attached to a port. This information is processed 90 and used for the audio and visual outputs 89
  • the output ports 87 supply the preset potential 88 to the connected device through cables (not shown) with appropriate fixed or interchangeable connectors /tips at each end to link the port to the device.
  • Example 4 illustrates another hardware and component controlled application of the invention and Figures 17-19 show schematic diagrams of a more portable power converter system.
  • Figure 17 shows the possible interfaces-Manual 102 and via proprietary software 95.
  • Figure 18 shows 2 different versions of the core circuit, one with fixed output voltages and one permitting voltages to be adjusted These core circuits can be repeated as many times as needed depending upon the number and type (fixed or variable voltage) of ports to be served.
  • Figure 19 shows the output processing and visual outputs.
  • the communications connections between the elements on different figures are shown alphabetically (e.g. "a” in figure 17 connects to "a” in figure 18 while “b” and “c” in figure 18 connects to "b” and "c” in figure 19)
  • the mains electricity is converted to direct current 91 using the existing laptop charger (not shown). Part of the power is allowed to pass straight through the unit to power the laptop and a small part of it is diverted to power other devices connected to the ports 99.
  • This provides a fixed direct current (DC) supply 91 to known digital switch mode transformers 93, which regulate the output voltage.
  • the voltage may be permanently fixed using a fixed voltage regulator 94 or left variable to be set as required.
  • the resistance setting on the potentiometers 92 is adjusted manually or via software to change the resistance in the circuit in order to adjust the output from the digital switch mode transformers 93. This means the output ports 99 will continue to supply the programmed potential as set. Once the potential is set in this way, the known current sensors 96 detect the current being drawn by any device attached to a port. This information is processed 101 and used for the visual outputs 100
  • the output ports 98 supply the preset potential 99 to the connected device through cables (not shown) with appropriate fixed or interchangeable connectors/tips at each end to link the port to the device.
  • the Software is used to configure the multicharger unit so that it can supply the particular power (eg voltage /current combinations) needs of different laptops and other devices which might be charged or powered by the unit.
  • the Software comprises a user friendly interface which leads users step by step through the process to configure the Multicharger unit to the desired settings. These steps and decisions/choices are presented in a sequence of computer screens that the user will find easy to follow.
  • the flow chart for the configuration software is presented in figure 20.
  • the proprietary software (which will be supplied with every unit) is first loaded onto the IT administrators laptop which is to be used for configuring the units.
  • the start button 108 will permit access to the configuration procedure and will connect to the extensive laptop database 109 provided within the software supplied or the updated database as downloaded earlier from the manufacturers website . If database connection 109 carries no errors or problems whatsoever 110, a new screen 111 will be displayed where the user can record details for the unit (e.g. location, name, date, serial number etc for internal records/administrative/equipment control purposes). . Once details are recorded the user can press the " next " button 113 and if the details are recorded correctly 117 then details are stored and the port setting screen 116 will display
  • the user is able to choose from three different setting methods 119 for setting ports to required power requirements .
  • pressing the "next" button 119 initiates the setting process 120.
  • Options for grouping ports for setting purposes include, all ports as a single group for setting 121, setting groups of ports 122 and setting the ports individually 123. Setting all ports either altogether 121, where only the first port is enabled and all other ports will be set to the same settings as selected for the first port 124 or individually 123 where all individual ports are enabled for setting on screen, will display the "Set Model" screen 126 where the user is invited to select the desired laptops from the database provided.
  • the assign groups screen 127 will allow ports to be selected into desired groupings . After ports have been successfully allocated into groups 127 , pressing "next" button 131 makes the Set Model screen 126 available.
  • the Set Model screen 126 allows the user to select a laptop make and model from the extensive laptop database 134 provided within the software . This permits a very user friendly environment for selection of the make and model of the desired laptop for each port or groups of ports .
  • the Set Voltage button 133 will send the configuration data to the unit and will set up the ports 136 on the multi charger to these desired settings if the data is correct and there are no errors 135.
  • the Set Model screen 126 contains the facility to exit the software by pressing Exit button 137.
  • All screens during the setting process have the facility to call the help documentation 114 by pressing the Help button 115 in whichever screen the user is in at any point.
  • the screens also have the facility to go back to the previous screens by pressing the back buttons 112, 118, 128.
  • the back button 129 will work according to whether the previous screen was all one group 121, individual ports 123 or the groups of ports 122.
  • the multicharger unit has a very efficient power management system which reduces the surge that can occur at a wall socket ( and which can trip a ring mains circuit ) when large numbers of laptops (connected to wall socket via extension cables) are switched on simultaneously, hi the case of eight laptops this would be done by replacing eight individual AC-DC converters that come with laptops with only four AC-DC converters within the Multicharger unit and by staged switching on of laptops so they are switched on in sequence a few milliseconds apart.
  • the combined effect is to permit a larger number of laptops to be powered/ charged from single wall socket using the multicharger than can be done if using their individual AC-DC converters.
  • the software and internal laptop data base is used to set each port to the characteristics of the laptop expected to use it (eg voltage and current requirements during operating or charging modes, and whether communications protocols are required before the laptop will charge or run).
  • Each port can supply a max upper limit of 7 amps to a device connected to it.
  • each set of two ports 1 and 2 , 3 and 4 etc are supplied from a single 300w DC power supply unit and the maximum amps available to be drawn over the two ports is around 11.5 amps.
  • the software tries to set the correct characteristics (voltage etc) for each port .However if it finds that the total amps required for any group of two ports exceeds the maximum available (11.5 amps) then it will permit only the first port to be set and will disable the second port until a less demanding laptop is assigned to that port which brings the total current drawn to below the threshold of 11.5 amps.
  • the software also checks that the total power drawn (voltage x current) through the 2 ports does not exceed the maximum total power (300w , in this case ) available from the power supply serving those two ports. The software therefore checks that the settings specified for the ports do not exceed that capacity of the supply available

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)
  • Dc-Dc Converters (AREA)
  • Protection Of Static Devices (AREA)

Abstract

L'invention concerne un système de multichargeur et de convertisseur de puissance comprenant une entrée secteur unique; un transformateur primaire permettant de convertir une alimentation secteur en courant alternatif en une alimentation fixe en courant continu; une pluralité de convertisseurs continu-continu fournissant une pluralité de sorties via un certains nombre de points de branchement afin de répondre aux exigences de puissance (tension/courant) d'une très grande variété de dispositifs électroniques, tels que des ordinateurs portatifs, qui peuvent être connectés à une unité à l'aide de câbles équipés de connecteurs/pointes fixes ou interchangeables tels que ceux nécessaires pour alimenter ou charger des portables différents et d'autres dispositifs; et un système de gestion de puissance qui permet de charger ou d'alimenter de nombreux dispositifs directement via une unité multichargeur à partir d'une prise électrique murale sans déclencher de courts-circuits ou créer de risques pour la santé et la sécurité provenant d'un nombre excessif de fils de dragage. L'unité incorpore des alarmes de sécurité audio et visuelles afin d'indiquer une utilisation inappropriée ou potentiellement dangereuse des points de branchement et comprend un mécanisme à sûreté intégrée permettant de fermer l'alimentation afin de ne pas endommager les dispositifs et l'unité si les charges dépassent les marges de sécurité maximum pré-spécifiées pour un pont de branchement quelconque.
PCT/GB2005/002535 2005-06-29 2005-06-29 Convertisseur de puissance a bus courant continu et sorties courant continu programmables multiples WO2007000560A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PCT/GB2005/002535 WO2007000560A1 (fr) 2005-06-29 2005-06-29 Convertisseur de puissance a bus courant continu et sorties courant continu programmables multiples
GB0801261A GB2441949B (en) 2005-06-29 2005-06-29 Power converter with DC-BUS and multiple programmable DC outputs

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/GB2005/002535 WO2007000560A1 (fr) 2005-06-29 2005-06-29 Convertisseur de puissance a bus courant continu et sorties courant continu programmables multiples

Publications (1)

Publication Number Publication Date
WO2007000560A1 true WO2007000560A1 (fr) 2007-01-04

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ID=35695489

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB2005/002535 WO2007000560A1 (fr) 2005-06-29 2005-06-29 Convertisseur de puissance a bus courant continu et sorties courant continu programmables multiples

Country Status (2)

Country Link
GB (1) GB2441949B (fr)
WO (1) WO2007000560A1 (fr)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1973117A1 (fr) * 2007-03-23 2008-09-24 Jigatek Corporation Module multimédia
ES2317771A1 (es) * 2007-01-09 2009-04-16 Elias Jose Martin Montes Organizador de cargadores.
US20110057614A1 (en) * 2009-07-21 2011-03-10 Eng Choon Low Power Supply Adapter
GB2475467A (en) * 2009-07-21 2011-05-25 Eng Choon Low Power supply adapter for supplying multiple devices
TWI407724B (zh) * 2007-07-17 2013-09-01 Chunghwa Telecom Co Ltd Telecommunication Machine Room DC Power Resource Management System
WO2013010805A3 (fr) * 2011-07-19 2014-01-16 Siemens Aktiengesellschaft Station de charge cc pour charger plusieurs dispositifs accumulateurs d'énergie
IT201800021013A1 (it) * 2018-12-24 2020-06-24 Borgwarner System Lugo S R L Caricabatteria con display alfanumerico
CN113263945A (zh) * 2016-08-23 2021-08-17 柏思科技有限公司 用于向具有电流测量值的多个负载供电的方法和系统
TWI795898B (zh) * 2021-09-01 2023-03-11 康舒科技股份有限公司 功率分配裝置
FR3131475A1 (fr) * 2021-12-28 2023-06-30 Somfy Activites Sa Station de charge pour actionneur electromecanique

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Publication number Priority date Publication date Assignee Title
US10283952B2 (en) 2017-06-22 2019-05-07 Bretford Manufacturing, Inc. Rapidly deployable floor power system

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US5563455A (en) * 1995-02-27 1996-10-08 Sun Microsystems, Inc. Method and apparatus for sequencing and controlling power distribution
WO2001043266A1 (fr) * 1999-12-10 2001-06-14 Am Group Corp. Bande d'alimentation electrique a alimentation ca a cc
US20030237008A1 (en) * 2002-06-24 2003-12-25 Compaq Information Technologies Group, L.P. Multiple server in-rush current reduction

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US7256516B2 (en) * 2000-06-14 2007-08-14 Aerovironment Inc. Battery charging system and method

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US5563455A (en) * 1995-02-27 1996-10-08 Sun Microsystems, Inc. Method and apparatus for sequencing and controlling power distribution
WO2001043266A1 (fr) * 1999-12-10 2001-06-14 Am Group Corp. Bande d'alimentation electrique a alimentation ca a cc
US20030237008A1 (en) * 2002-06-24 2003-12-25 Compaq Information Technologies Group, L.P. Multiple server in-rush current reduction

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2317771A1 (es) * 2007-01-09 2009-04-16 Elias Jose Martin Montes Organizador de cargadores.
ES2317771B1 (es) * 2007-01-09 2010-02-03 Elias Jose Martin Montes Organizador de cargadores.
EP1973117A1 (fr) * 2007-03-23 2008-09-24 Jigatek Corporation Module multimédia
TWI407724B (zh) * 2007-07-17 2013-09-01 Chunghwa Telecom Co Ltd Telecommunication Machine Room DC Power Resource Management System
US20110057614A1 (en) * 2009-07-21 2011-03-10 Eng Choon Low Power Supply Adapter
GB2475467B (en) * 2009-07-21 2012-04-04 Eng Choon Low Power supply adaptor
GB2475467A (en) * 2009-07-21 2011-05-25 Eng Choon Low Power supply adapter for supplying multiple devices
WO2013010805A3 (fr) * 2011-07-19 2014-01-16 Siemens Aktiengesellschaft Station de charge cc pour charger plusieurs dispositifs accumulateurs d'énergie
CN113263945A (zh) * 2016-08-23 2021-08-17 柏思科技有限公司 用于向具有电流测量值的多个负载供电的方法和系统
CN113263945B (zh) * 2016-08-23 2023-08-18 柏思科技有限公司 用于向具有电流测量值的多个负载供电的方法和系统
IT201800021013A1 (it) * 2018-12-24 2020-06-24 Borgwarner System Lugo S R L Caricabatteria con display alfanumerico
TWI795898B (zh) * 2021-09-01 2023-03-11 康舒科技股份有限公司 功率分配裝置
FR3131475A1 (fr) * 2021-12-28 2023-06-30 Somfy Activites Sa Station de charge pour actionneur electromecanique

Also Published As

Publication number Publication date
GB2441949A (en) 2008-03-19
GB0801261D0 (en) 2008-02-27
GB2441949B (en) 2009-09-09

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