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WO2018133410A1 - Circuit de gestion d'énergie, dispositif électronique et procédé de commande de dispositif électronique - Google Patents

Circuit de gestion d'énergie, dispositif électronique et procédé de commande de dispositif électronique Download PDF

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Publication number
WO2018133410A1
WO2018133410A1 PCT/CN2017/098603 CN2017098603W WO2018133410A1 WO 2018133410 A1 WO2018133410 A1 WO 2018133410A1 CN 2017098603 W CN2017098603 W CN 2017098603W WO 2018133410 A1 WO2018133410 A1 WO 2018133410A1
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WO
WIPO (PCT)
Prior art keywords
interface
chip
electronic device
power management
power
Prior art date
Application number
PCT/CN2017/098603
Other languages
English (en)
Chinese (zh)
Inventor
刘海强
Original Assignee
深圳市金立通信设备有限公司
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 深圳市金立通信设备有限公司 filed Critical 深圳市金立通信设备有限公司
Publication of WO2018133410A1 publication Critical patent/WO2018133410A1/fr

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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
    • G06F13/10—Program control for peripheral devices
    • G06F13/102—Program control for peripheral devices where the programme performs an interfacing function, e.g. device driver
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
    • G06F13/38—Information transfer, e.g. on bus
    • G06F13/40—Bus structure
    • G06F13/4063—Device-to-bus coupling
    • G06F13/4068—Electrical coupling

Definitions

  • the present invention relates to the field of power management technologies, and in particular, to a power management circuit, an electronic device, and an electronic device control method.
  • the power management circuit of the electronic device generally includes a power management chip and an interface detection chip for connecting to the TYPE_C interface.
  • the power management chip detects the power input and controls the electronic device to be powered on.
  • the power management chip may be triggered, causing the electronic device to be powered on.
  • the embodiments of the present invention provide a power management circuit, an electronic device, and an electronic device control method, which are used to solve the problem that the TYPE_C cable of the unconnected power device is inserted into the interface detection chip, causing the electronic device to be powered on.
  • the embodiment of the invention provides a power management circuit, which is applied to an electronic device, including a power management chip, an interface detection chip for connecting the TYPE_C interface, and a control circuit.
  • the interface detection chip includes a power detection pin and an enable pin, and the power detection pin is electrically connected to the power management chip, and the control circuit is electrically connected to the enable pin for closing the interface detection chip when the electronic device is powered off. And enabling the interface detection chip after the electronic device is powered on.
  • Embodiments of the present invention also provide an electronic device including a power management circuit.
  • the power management circuit is as described above.
  • the embodiment of the invention further provides an electronic device control method, including:
  • the interface detection chip When the electronic device is in a shutdown state, receiving a shutdown signal sent by the control circuit to close the interface detection chip, the interface detection chip is electrically connected to the TYPE_C interface, and the TYPE_C interface is electrically connected to the power management chip;
  • the control circuit controls the interface to detect that the chip is in the off state. Therefore, if the TYPE_C cable that is not connected to the power device is inserted into the interface detection chip at this time, the power management chip is not triggered to be turned on, thereby solving the problem that the TYPE_C cable inserted into the unconnected power device is turned off and the electronic device is turned on by mistake.
  • FIG. 1 is a block diagram showing the structure of a power management circuit according to a first embodiment of the present invention
  • Figure 2 is a circuit diagram of Figure 1;
  • Figure 3 is a schematic diagram of a circuit that causes a false boot
  • FIG. 4 is a schematic flow chart of a method for controlling an electronic device according to a first embodiment of the present invention.
  • the term “if” can be interpreted as “when” or “on” or “in response to determining” or “in response to detecting” depending on the context. .
  • the phrase “if determined” or “if detected [condition or event described]” may be interpreted in context to mean “once determined” or “in response to determining” or “once detected [condition or event described] ] or “in response to detecting [conditions or events described]”.
  • the terminals described in this embodiment of the invention include, but are not limited to, other portable devices such as mobile phones, laptop computers or tablet computers having touch sensitive surfaces (eg, touch screen displays and/or touch pads). It should also be understood that in some embodiments, the device is not a portable communication device, but a desktop computer having a touch sensitive surface (eg, a touch screen display and/or a touch pad).
  • the terminal including a display and a touch sensitive surface is described.
  • the terminal can include one or more other physical user interface devices such as a physical keyboard, mouse, and/or joystick.
  • FIG. 1 is a structural block diagram of a power management circuit according to a first embodiment of the present invention.
  • the power management circuit is applied to an electronic device such as a mobile terminal.
  • the power management circuit can include:
  • a filter circuit 10 configured to connect to a power source; wherein the power source is used to provide power to the power management circuit;
  • the interface detecting chip 12 is configured to connect to the TYPE_C interface, and includes a power detecting pin and an enable pin, and the power detecting pin is electrically connected to the power management chip 11;
  • the control circuit 13 is electrically connected to the enable pin for turning off the interface detecting chip 12 when the electronic device is turned off, and enabling the interface detecting chip 12 after the electronic device is turned on.
  • control circuit 13 includes a central processing unit 131 and an isolation circuit 132.
  • the isolation circuit 132 is electrically connected to the central processing unit 131 and an enable pin for inverting the level signal output by the central processing unit 131. Specifically, when the electronic device is powered off, the central processing unit 131 sends a first level signal to the isolation circuit 132, and the isolation circuit 132 converts the first level signal into a second level signal and outputs the signal to the interface detection chip 12. The pin is enabled to turn off the interface detection chip 12.
  • the interface detecting chip 12 includes a pin 1, a pin 2, and a pin 4.
  • Pin 1 and pin 2 are a first configuration channel pin CC1 and a second configuration channel pin CC2, respectively, for connecting to the TYPE_C interface 14, and the TYPE_C device accesses the interface detection chip 12 through the TYPE_C interface 14;
  • 4 is a power detection pin VBUSDET for electrically connecting to the power management chip 11, and a resistor R1 is connected in series between the pin 4 and the power management chip 11;
  • pin 10 is a ground pin GND;
  • pin 11 is The pin ENB is used to electrically connect to the isolation circuit 132 of the control circuit 13;
  • the pin 12 is a power input pin VDD for electrically connecting to the filter circuit 10.
  • the filter circuit 10 includes a first capacitor C1 and a second capacitor C2.
  • the first capacitor C1 and the second capacitor C2 are connected in parallel, and one end connected in parallel is connected to a power source VPH_PWR that supplies power to the entire power management circuit.
  • the power supply input pin VDD (ie, pin 12) of the interface detecting chip 12, and the other end connected in parallel is grounded.
  • the isolation circuit 132 includes a first resistor R2, a second resistor R3, a third resistor R4, and a switch Q1.
  • One end of the first resistor R2 is electrically connected to a power source VPH_PWR, and the other end is grounded through a second resistor R3 and a third resistor R4.
  • the node A between the first resistor R2 and the second resistor R3 is electrically connected to the switch transistor Q1 and the enable pin ENB (ie, pin 11), and the node B between the second resistor R3 and the third resistor R4 is electrically connected. It is connected to the central processing unit 131 and the switching transistor Q1.
  • the switch transistor Q1 is an N-type field effect transistor, the drain thereof is grounded, and the gate is electrically connected to the node B between the second resistor R3 and the third resistor R4, and the source is electrically connected first. Node A between resistor R2, second resistor R3, and enable pin ENB (ie, pin 11).
  • FIG. 3 and FIG. 2 please refer to FIG. 3 and FIG. 2 to better illustrate the working principle of the present invention:
  • the central processing unit 231 transmits a low level signal and transmits it to the interface detecting chip 22 through the enable pin (ie, pin 11) of the interface detecting chip 22 to enable the interface detecting chip 22.
  • the electronic device is automatically shut down due to power exhaustion, if the TYPE_C interface 24 is connected to the unpowered device through the TYPE_C cable (ie, the pure TYPE_C cable is inserted through the TYPE_C interface), since the pure TYPE_C cable has a default 5.1K inside.
  • Resistor R5 (which is specified by the standard TYPE_C protocol) will divide the power supply VPH_PWR with the internal resistor R6 of the interface detecting chip 22.
  • the internal resistor R6 has one end connected to the power input pin VDD (ie, pin 12), and the other end connected to the power detecting pin VBUSDET (ie, pin 4) and the first configuration channel pin CC1 (ie, pin 1). At this time, it is detected that the voltage between the resistor R5 and the resistor R6 is about 0.9V. The voltage of about 0.9V will be reversed to the power management chip through the power detection pin VBUSDET (ie, pin 4). 21, because the power management chip 21 triggers the voltage of the electronic device to be turned on too low, so the voltage of about 0.9V triggers the boot, which causes a false boot.
  • an embodiment of the present invention provides a control circuit 13 as shown in FIG. 2, which includes a central processing unit 131 and an isolation circuit 132.
  • the central processing unit 131 outputs a first level signal (ie, a low level signal) from the node B to the isolation circuit 132, and the first level signal is converted into a second level signal after passing through the isolation circuit 132 (ie, high power)
  • the flat signal that is, the low level signal turns off Q1, at which time the potential of the enable pin ENB is at a high level, thereby turning off the interface detecting chip 12.
  • the electronic device when the electronic device is turned off, if the pure TYPE_C cable is inserted through the TYPE_C interface 14, since the interface detecting chip 12 has been turned off, the 0.9 of the power management chip 11 as described above is not generated. The voltage around V, thus solving the problem of false booting.
  • the charging device When the inserted TYPE_C cable is connected to the charging device, the charging device outputs a normal voltage, for example, 5V, 12V, etc., to the power management chip 11, so that the power management chip 11 controls the terminal to be normally turned on.
  • the central processing unit 131 After the terminal is normally turned on, the central processing unit 131 outputs a second level signal (ie, a high level signal) to the isolation circuit 132, and the isolation circuit 132 converts it into a first level signal (ie, a low level signal), ie, The high level signal output by the central processing unit 131 turns on Q1. At this time, the enable pin ENB is grounded through Q1, thereby enabling the interface detecting chip 12.
  • an embodiment of the present invention further provides an electronic device.
  • the electronic device includes a power management circuit.
  • the electronic device includes a power management circuit.
  • the control circuit of the power management circuit controls the interface to detect that the chip is in the off state. Therefore, if the TYPE_C cable that is not connected to the power device is inserted into the interface detection chip at this time, the power management chip is not triggered to be turned on, thereby solving the problem that the TYPE_C cable inserted into the unconnected power device is turned off and the electronic device is turned on by mistake.
  • FIG. 4 it is a schematic flowchart of a method for controlling an electronic device according to a first embodiment of the present invention. As shown in the figure, the method may include:
  • the isolation circuit receives the first level signal sent by the central processing unit
  • the isolation circuit converts the first level signal into a second level signal, where the second level signal is a shutdown signal;
  • the isolation circuit outputs a shutdown signal to an enable pin of the interface detection chip, the interface detection chip is electrically connected to the TYPE_C interface, and the TYPE_C interface is electrically connected to the power management chip;
  • S105 Receive an insertion of the TYPE_C device to keep the interface detection chip in a closed state or enable the interface detection chip.
  • the interface detecting chip is turned off, the power management chip does not detect the power input, and does not trigger the electronic device to be powered on, thereby solving the TYPE_C of the unconnected power device.
  • the cable insertion interface detects the problem of the wrong boot caused by the chip; when the TYPE_C cable that receives the connected power device (such as a charger or a computer) is inserted, the power management chip detects the power input, triggers the electronic device to be turned on, and the center
  • the processor enables the interface to detect the chip.
  • the shutdown signal sent by the control circuit is first received to close the interface detection chip, and then the insertion of the TYPE_C device is received to keep the interface detection chip in the off state or the interface detection chip is enabled.
  • the type of the inserted TYPE_C device is considered to maintain the off state of the interface detection chip or enable the interface detection chip, thereby controlling whether to input a voltage to the power management chip, thereby controlling the electronic device to remain powered off or Normally power on, solve the problem that the TYPE_C cable that is not connected to the power device is inserted into the interface detection chip and causes the wrong boot.
  • the disclosed terminal and method may be implemented in other manners.
  • the device embodiments described above are merely illustrative
  • the division of the unit is only a logical function division, and the actual implementation may have another division manner, for example, multiple units or components may be combined or may be integrated into another system, or some features may be ignored. Or not executed.
  • the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, or an electrical, mechanical or other form of connection.
  • the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the objectives of the embodiments of the present invention.
  • each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.
  • the above integrated unit can be implemented in the form of hardware or in the form of a software functional unit.
  • the units in the terminal in the embodiment of the present invention may be combined, divided, and deleted according to actual needs.

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  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • Power Sources (AREA)

Abstract

Selon un mode de réalisation, la présente invention concerne un circuit de gestion d'énergie, un dispositif électronique et un procédé de commande. Le circuit est appliqué dans un dispositif électronique et comprend une puce de gestion d'énergie, une puce de détection d'interface utilisée afin de se connecter à une interface TYPE_C et un circuit de commande. La puce de détection d'interface comprend une broche de détection d'énergie et une broche d'activation. La broche de détection d'énergie est électriquement connectée à la puce de gestion d'énergie. Le circuit de commande est électriquement connecté à la broche d'activation de façon à éteindre la puce de détection d'interface lorsqu'un dispositif électronique est éteint, et à activer la puce de détection d'interface lorsque le dispositif électronique est allumé. Dans le mode de réalisation de la présente invention, lorsque le dispositif électronique est éteint, le circuit de commande commande la puce de détection d'interface pour qu'elle soit dans un état bloqué, de telle sorte que même si un câble TYPE_C, qui n'est pas connecté à un dispositif d'alimentation électrique, est inséré dans la puce de détection d'interface, la puce de gestion de puissance n'est pas déclenchée pour un démarrage, ce qui permet de résoudre un problème selon lequel l'insertion d'un câble TYPE_C, qui n'est pas connecté à un dispositif d'alimentation électrique, allume accidentellement un dispositif électronique dans un état éteint.
PCT/CN2017/098603 2017-01-20 2017-08-23 Circuit de gestion d'énergie, dispositif électronique et procédé de commande de dispositif électronique WO2018133410A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201710042588.0 2017-01-20
CN201710042588.0A CN106844238A (zh) 2017-01-20 2017-01-20 一种电源管理电路、电子设备及电子设备控制方法

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WO2018133410A1 true WO2018133410A1 (fr) 2018-07-26

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Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106844238A (zh) * 2017-01-20 2017-06-13 深圳市金立通信设备有限公司 一种电源管理电路、电子设备及电子设备控制方法

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201514611U (zh) * 2009-10-19 2010-06-23 广东欧珀电子工业有限公司 一种手持设备开关机电路
CN105867593A (zh) * 2016-05-17 2016-08-17 深圳慧能泰半导体科技有限公司 一种USB Type-C接口电路及其控制装置
US20160308527A1 (en) * 2015-04-17 2016-10-20 Samsung Electronics Co., Ltd. Integrated circuit and cable assembly including the same
CN106844238A (zh) * 2017-01-20 2017-06-13 深圳市金立通信设备有限公司 一种电源管理电路、电子设备及电子设备控制方法

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201514611U (zh) * 2009-10-19 2010-06-23 广东欧珀电子工业有限公司 一种手持设备开关机电路
US20160308527A1 (en) * 2015-04-17 2016-10-20 Samsung Electronics Co., Ltd. Integrated circuit and cable assembly including the same
CN105867593A (zh) * 2016-05-17 2016-08-17 深圳慧能泰半导体科技有限公司 一种USB Type-C接口电路及其控制装置
CN106844238A (zh) * 2017-01-20 2017-06-13 深圳市金立通信设备有限公司 一种电源管理电路、电子设备及电子设备控制方法

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