+

WO2018103053A1 - Convertisseur cc-cc pour dispositifs médicaux implantables - Google Patents

Convertisseur cc-cc pour dispositifs médicaux implantables Download PDF

Info

Publication number
WO2018103053A1
WO2018103053A1 PCT/CN2016/109085 CN2016109085W WO2018103053A1 WO 2018103053 A1 WO2018103053 A1 WO 2018103053A1 CN 2016109085 W CN2016109085 W CN 2016109085W WO 2018103053 A1 WO2018103053 A1 WO 2018103053A1
Authority
WO
WIPO (PCT)
Prior art keywords
voltage
switch
gain controller
gain
output
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/CN2016/109085
Other languages
English (en)
Inventor
Min Tan
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Dongguan Bang Bang Tang Electronic Technology Co Ltd
Original Assignee
Dongguan Bang Bang Tang Electronic Technology Co Ltd
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 Dongguan Bang Bang Tang Electronic Technology Co Ltd filed Critical Dongguan Bang Bang Tang Electronic Technology Co Ltd
Priority to SE2030233A priority Critical patent/SE2030233A1/en
Priority to GB1909552.0A priority patent/GB2572115B/en
Priority to SE1930236A priority patent/SE543140C2/en
Priority to SE2130003A priority patent/SE2130003A1/en
Priority to PCT/CN2016/109085 priority patent/WO2018103053A1/fr
Priority to CN201680091396.2A priority patent/CN110089017A/zh
Publication of WO2018103053A1 publication Critical patent/WO2018103053A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • 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
    • H02M3/06—Conversion of DC power input into DC power output without intermediate conversion into AC by static converters using resistors or capacitors, e.g. potential divider
    • H02M3/07—Conversion of DC power input into DC power output without intermediate conversion into AC by static converters using resistors or capacitors, e.g. potential divider using capacitors charged and discharged alternately by semiconductor devices with control electrode, e.g. charge pumps
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
    • A61N1/00—Electrotherapy; Circuits therefor
    • A61N1/18—Applying electric currents by contact electrodes
    • A61N1/32—Applying electric currents by contact electrodes alternating or intermittent currents
    • A61N1/36—Applying electric currents by contact electrodes alternating or intermittent currents for stimulation
    • A61N1/372—Arrangements in connection with the implantation of stimulators
    • A61N1/378—Electrical supply
    • 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
    • H02M1/0048—Circuits or arrangements for reducing losses
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
    • Y02B70/10—Technologies improving the efficiency by using switched-mode power supplies [SMPS], i.e. efficient power electronics conversion e.g. power factor correction or reduction of losses in power supplies or efficient standby modes

Definitions

  • the present patent application generally relates to medical electronics and more specifically to a DC-DC converter for implantable medical devices.
  • Implantable medical devices have been applied more and more widely in modern medicine. Because of its unique applications, an implantable medical device generally requires the power supply that supplies power to it to be small volume, low power and high power transfer efficiency. Not only so, the implantable medical device but also generally has multiple working modes, such as a sleep mode, a measurement mode, a data transmission mode, and so on. In each different working mode, the same implantable medical device typically has a different requirement on the power supply that supplies power to it.
  • DC-DC converter is an important component of a power supply system of an implantable medical device.
  • Conventional DC-DC converters usually cannot effectively satisfy different requirements of the implantable medical device in different working modes on the output voltage and the load values, which are in a relatively wide range.
  • conventional DC-DC converters usually have relatively complicated circuits, relatively large chip areas, relatively high power consumption, and relatively low system working efficiency, and therefore are not suitable for supplying power to implantable medical devices.
  • the DC-DC converter includes: a switch capacitor converter core including a plurality of power transistor switches configured to receive an input voltage and output an output voltage; a switch driver connected with the switch capacitor converter core and configured to turn on corresponding power transistor switches in the switch capacitor converter core so as to supply power to a load receiving the output voltage; a switch signal router connected with the switch driver and configured to selectively transmit signals required by the switch driver; a gain selection decoder connected with the switch signal router; a gain controller connected with the gain selection decoder, the gain selection decoder being configured to decode gain selection instructions transmitted from the gain controller; an input adjusting device connected with the gain controller and configured to receive the input voltage and a reference voltage, to indicate relationship between the input voltage and the reference voltage, and to transmit the relationship to the gain controller; an output adjusting device connected with the gain controller and configured to receive the output voltage and the reference voltage, to indicate relationship between the output voltage and the reference voltage, and to transmit the relationship to the gain controller;
  • the input adjusting device includes an adaptive ADC configured to determine a required conversion gain ratio based on the input voltage and the reference voltage, and a control logic circuit connected with the adaptive ADC and configured to control the adaptive ADC.
  • the output adjusting device includes a plurality of comparators and a control logic circuit connected with the comparators.
  • the gain controller is configured to control the conversion gain ratio required by the switch capacitor converter core according to information provided by the input adjusting device and the output adjusting device, the conversion gain ratio being the ratio between the output voltage and the input voltage.
  • the gain controller is turned off, and switching frequency of the switch capacitor converter core is adjusted by discrete amounts based on a DFS (Discrete-frequency Scaling) algorithm so that the output voltage gradually approaches the reference voltage.
  • DFS Discrete-frequency Scaling
  • the switch capacitor converter core may include a plurality of power transistor switches and a pump capacitor, and the conversion gain ratio provided by the switch capacitor converter core may be 1/2, 2/3, 1, 3/2 or 2.
  • the adaptive ADC in the input adjusting device may include a comparator and a plurality of latches, the latches being connected with the comparator and configured to generate data of a predetermined number of digits according to a result from the comparator, the data describing ratio between the reference voltage and the input voltage, and being used to set the required conversion gain ratio.
  • the gain controller may include a digital circuit; when the output voltage is below the threshold range below the reference voltage, the digital circuit may be configured to, through adjusting the conversion gain ratio, adjust the output voltage by a large amount.
  • the counter may be configured to count a predetermined number of clock periods every time after the switching frequency of the switch capacitor converter core is changed, so that there is sufficient time for the output voltage to respond to the change.
  • the clock generator may include a comparator; a logic circuit connected with the comparator and configured to drive the comparator; and a clock signal generator connected with the logic circuit and configured to output two clock signals.
  • the two clock signals may be transmitted to the switch signal router and the switch driver, and further configured to control the switch capacitor converter core.
  • the present patent application provides a DC-DC converter for implantable medical devices including: a switch capacitor converter core including a plurality of power transistor switches configured to receive an input voltage and output an output voltage; a switch driver connected with the switch capacitor converter core and configured to turn on corresponding power transistor switches in the switch capacitor converter core so as to supply power to a load receiving the output voltage; a switch signal router connected with the switch driver and configured to selectively transmit signals required by the switch driver; a gain selection decoder connected with the switch signal router; a gain controller connected with the gain selection decoder, the gain selection decoder being configured to decode gain selection instructions transmitted from the gain controller; an input adjusting device connected with the gain controller and configured to receive the input voltage and a reference voltage, to indicate relationship between the input voltage and the reference voltage, and to transmit the relationship to the gain controller; an output adjusting device connected with the gain controller and configured to receive the output voltage and the reference voltage, to indicate relationship between the output voltage and the reference voltage, and to transmit the relationship to the gain controller; a clock generator connected with
  • the input adjusting device includes an adaptive ADC configured to determine a required conversion gain ratio based on the input voltage and the reference voltage, and a control logic circuit connected with the adaptive ADC and configured to control the adaptive ADC.
  • the output adjusting device includes a plurality of comparators and a control logic circuit connected with the comparators.
  • the gain controller is configured to control the conversion gain ratio required by the switch capacitor converter core according to information provided by the input adjusting device and the output adjusting device, the conversion gain ratio being the ratio between the output voltage and the input voltage.
  • the gain controller includes a digital circuit. When the output voltage is out of a threshold range around the reference voltage, the digital circuit is configured to, through adjusting the conversion gain ratio, adjust the output voltage by a large amount.
  • the gain controller When the output voltage is in a threshold range around the reference voltage, the gain controller is turned off, and switching frequency of the switch capacitor converter core is adjusted by discrete amounts based on a DFS (Discrete-frequency Scaling) algorithm so that the output voltage gradually approaches the reference voltage.
  • DFS Discrete-frequency Scaling
  • the switch capacitor converter core may include a plurality of power transistor switches and a pump capacitor, and the conversion gain ratio provided by the switch capacitor converter core may be 1/2, 2/3, 1, 3/2 or 2.
  • the adaptive ADC in the input adjusting device may include a comparator and a plurality of latches, the latches being connected with the comparator and configured to generate data of a predetermined number of digits according to a result from the comparator, the data describing ratio between the reference voltage and the input voltage, and being used to set the required conversion gain ratio.
  • the clock generator may include a comparator; a logic circuit connected with the comparator and configured to drive the comparator; and a clock signal generator connected with the logic circuit and configured to output two clock signals.
  • the two clock signals may be transmitted to the switch signal router and the switch driver, and further configured to control the switch capacitor converter core.
  • FIG. 1 is a block diagram of a DC-DC converter for implantable medical devices in accordance with an embodiment of the present patent application.
  • FIG. 2A is a block diagram of an input adjusting device of the DC-DC converter depicted in FIG. 1.
  • FIG. 2B is a block diagram of an output adjusting device of the DC-DC converter depicted in FIG. 1.
  • FIG. 3 is a block diagram of a clock generator of the DC-DC converter depicted in FIG. 1.
  • DC-DC converter for implantable medical devices disclosed in the present patent application is not limited to the precise embodiments described below and that various changes and modifications thereof may be effected by one skilled in the art without departing from the spirit or scope of the protection.
  • elements and/or features of different illustrative embodiments may be combined with each other and/or substituted for each other within the scope of this disclosure.
  • FIG. 1 is a block diagram of a DC-DC converter for implantable medical devices in accordance with an embodiment of the present patent application.
  • the DC-DC converter for implantable medical devices includes a switch capacitor converter core 101 that includes a plurality of power transistor switches configured to receive an input voltage and output an output voltage; a switch driver 103 connected with the switch capacitor converter core 101 and configured to turn on corresponding power transistor switches in the switch capacitor converter core 101 so as to supply power to a load 104 receiving the output voltage; a switch signal router 105 connected with the switch driver 103 and configured to selectively transmit signals required by the switch driver 103; a gain selection decoder 107 connected with the switch signal router 105; a gain controller 109 connected with the gain selection decoder 107, the gain selection decoder 107 being configured to decode gain selection instructions transmitted from the gain controller 109; an input adjusting device 111 connected with the gain controller 109 and configured to receive the input voltage and a reference voltage, to indicate relationship between the input voltage and the reference voltage, and to transmit
  • FIG. 2A is a block diagram of an input adjusting device of the DC-DC converter depicted in FIG. 1.
  • the input adjusting device 111 includes an adaptive ADC 201 configured to determine a required conversion gain ratio based on the input voltage and the reference voltage, and a control logic circuit 203 connected with the adaptive ADC 201 and configured to control the adaptive ADC 201.
  • the adaptive ADC 201 in the input adjusting device 111 includes a comparator 204 and a plurality of latches 205.
  • the latches 205 are connected with the comparator 204 and configured to generate data of a predetermined number of digits according to a result from the comparator 204.
  • the predetermined number of digits is 3.
  • the 3 digit data describes ratio between the reference voltage and the input voltage, and is used to set the required conversion gain ratio.
  • the 3 digit data generated by the latches 205 remains unchanged.
  • the 3 digit data generated by the latches 205 changes so as to change the conversion gain ratio.
  • FIG. 2B is a block diagram of an output adjusting device of the DC-DC converter depicted in FIG. 1.
  • the output adjusting device 113 includes a plurality of comparators 211 and a control logic circuit 213 connected with the comparators 211.
  • Each of the comparators 211 in the output adjusting device 113 includes a read amplifier. The use of the read amplifier helps with further lowering the system power consumption.
  • the gain controller 109 is configured to control the conversion gain ratio required by the switch capacitor converter core 101 according to information provided by the input adjusting device 111 and the output adjusting device 113.
  • the conversion gain ratio is the ratio between the output voltage and the input voltage.
  • the gain controller 109 when the output voltage is sufficiently close to the reference voltage, for example, when the output voltage is in a threshold range below the reference voltage, the gain controller 109 is turned off, and the switching frequency of the switch capacitor converter core 101 is adjusted by discrete amounts based on a DFS (Discrete-frequency Scaling) algorithm so that the output voltage gradually approaches the reference voltage and fine-tuning of the output voltage is realized.
  • DFS Discrete-frequency Scaling
  • the switch capacitor converter core 101 includes a plurality of power transistor switches and a pump capacitor.
  • the conversion gain ratio may be greater or less than 1.
  • the conversion gain ratio provided by the switch capacitor converter core 101 may be 1/2, 2/3, 1, 3/2 or 2.
  • the gain controller 109 includes a digital circuit. When the output voltage is out of a predetermined range (the reference voltage ⁇ a predetermined threshold), the digital circuit, through adjusting the conversion gain ratio, adjusts the output voltage by a relatively great amount, therefore realizing rough adjustment of the output voltage through adaptive power control.
  • the gain controller 109 When the output voltage is in the predetermined range (the reference voltage ⁇ a predetermined threshold), the gain controller 109 is turned off, the switching frequency of the switch capacitor converter core 101 is adjusted by discrete amounts based on a DFS (Discrete-frequency Scaling) algorithm so that the output voltage is fine tuned.
  • the counter 117 is configured to count a predetermined number of clock periods every time after the switching frequency of the switch capacitor converter core 101 is changed, so that there is sufficient time for the output voltage to respond to the change.
  • the predetermined threshold is less than or equal to 10% of the reference voltage.
  • FIG. 3 is a block diagram of a clock generator of the DC-DC converter depicted in FIG. 1.
  • the clock generator 115 includes a comparator 301; a logic circuit 303 connected with the comparator 301 and configured to drive the comparator 301; and a clock signal generator 305 connected with the logic circuit 303 and configured to output two clock signals A and B.
  • the two clock signals A and B are transmitted to the switch signal router 105 and the switch driver 103, and further configured to control the switch capacitor converter core 101.
  • the input of the comparator 301 is the output voltage and the reference voltage.
  • the switch driver 103 controls the power transistors in the switch capacitor converter core 101 to stop switching operations. This design further lowers power consumption of the system and limits the overshoot of the output voltage.
  • the DC-DC converter has a small chip area, circuits with low complexity, and high configurability, implementing the controlling method that combines the rough adjustment (adaptive power control) and the find adjustment (DFS) of the output voltage so that the DC-DC converter satisfies the requirements on the output voltage and the load in a wide range, and is especially suitable for supplying power to implantable medical devices.
  • the switch driver is configured to control the power transistors of the switch capacitor converter core 101 to stop switching operations, which not only limits overshoot of the output voltage, but also further decreases power consumption of the system, so that the working efficiency of the system is improved.

Landscapes

  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Radiology & Medical Imaging (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Power Engineering (AREA)
  • Dc-Dc Converters (AREA)
  • Prostheses (AREA)
  • External Artificial Organs (AREA)

Abstract

Un convertisseur CC-CC pour dispositifs médicaux implantables comprend un noyau de convertisseur de condensateur de commutation comprenant une pluralité de commutateurs de transistor de puissance configurés pour recevoir une tension d'entrée et délivrer une tension de sortie ; un circuit d'attaque de commutateur connecté au noyau de convertisseur de condensateur de commutation et configuré pour allumer des commutateurs de transistor de puissance correspondants dans le noyau de convertisseur de condensateur de commutation de façon à fournir de l'énergie à une charge recevant la tension de sortie ; un routeur de signal de commutation connecté au circuit d'attaque de commutateur et configuré pour transmettre sélectivement des signaux requis par le circuit d'attaque de commutateur ; un décodeur de sélection de gain connecté au routeur de signal de commutation ; un dispositif de commande de gain connecté au décodeur de sélection de gain, le décodeur de sélection de gain étant configuré pour décoder des instructions de sélection de gain transmises par le dispositif de commande de gain ; un dispositif de réglage d'entrée connecté au dispositif de commande de gain et configuré pour recevoir la tension d'entrée et une tension de référence, pour indiquer une relation entre la tension d'entrée et la tension de référence, et pour transmettre la relation au dispositif de commande de gain ; un dispositif de réglage de sortie connecté au dispositif de commande de gain et configuré pour recevoir la tension de sortie et la tension de référence, pour indiquer la relation entre la tension de sortie et la tension de référence, et pour transmettre la relation au dispositif de commande de gain ; un générateur d'horloge connecté au routeur de signal de commutation, au dispositif de commande de gain et au dispositif de réglage de sortie ; et un compteur connecté au dispositif de commande de gain.
PCT/CN2016/109085 2016-12-08 2016-12-08 Convertisseur cc-cc pour dispositifs médicaux implantables Ceased WO2018103053A1 (fr)

Priority Applications (6)

Application Number Priority Date Filing Date Title
SE2030233A SE2030233A1 (en) 2016-12-08 2016-12-08 DC-DC CONVERTER
GB1909552.0A GB2572115B (en) 2016-12-08 2016-12-08 DC- DC converter for implantable medical devices
SE1930236A SE543140C2 (en) 2016-12-08 2016-12-08 DC-DC CONVERTER FOR IMPLANTABLE MEDICAL DEVICES
SE2130003A SE2130003A1 (en) 2016-12-08 2016-12-08 VOLTAGE CONVERTER
PCT/CN2016/109085 WO2018103053A1 (fr) 2016-12-08 2016-12-08 Convertisseur cc-cc pour dispositifs médicaux implantables
CN201680091396.2A CN110089017A (zh) 2016-12-08 2016-12-08 用于植入式医疗设备的dc-dc转换器

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2016/109085 WO2018103053A1 (fr) 2016-12-08 2016-12-08 Convertisseur cc-cc pour dispositifs médicaux implantables

Publications (1)

Publication Number Publication Date
WO2018103053A1 true WO2018103053A1 (fr) 2018-06-14

Family

ID=62490586

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2016/109085 Ceased WO2018103053A1 (fr) 2016-12-08 2016-12-08 Convertisseur cc-cc pour dispositifs médicaux implantables

Country Status (4)

Country Link
CN (1) CN110089017A (fr)
GB (1) GB2572115B (fr)
SE (3) SE2130003A1 (fr)
WO (1) WO2018103053A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021137085A2 (fr) * 2019-12-31 2021-07-08 Novocure Gmbh Générateur d'ondes sinusoïdales à haute tension et haute efficacité qui empêche les pointes pendant les ajustements d'amplitude et la commutation de canaux
CN111053975B (zh) * 2020-01-03 2023-09-29 创领心律管理医疗器械（上海）有限公司 心脏起搏装置、存储介质、电源设备及输出电压控制方法

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101465658A (zh) * 2007-12-20 2009-06-24 雷凌科技股份有限公司 具有适应性可配置的模拟到数字转换器的无线接收器系统
US20090326624A1 (en) * 2008-06-27 2009-12-31 Medtronic, Inc. Multi-mode switched capacitor dc-dc voltage converter
CN102754321A (zh) * 2009-12-01 2012-10-24 天工方案公司 持续可变切换的电容器dc-dc电压转换器
US9295851B2 (en) * 2013-03-14 2016-03-29 Medtronic, Inc. Implantable medical device having power supply for generating a regulated power supply

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102868397B (zh) * 2011-07-05 2014-12-17 杭州中科微电子有限公司 可优化压控振荡器性能的自校正频率综合器及其优化方法
CN206379881U (zh) * 2016-11-22 2017-08-04 安捷乐科技有限公司 用于植入式医疗设备的dc‑dc转换器

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101465658A (zh) * 2007-12-20 2009-06-24 雷凌科技股份有限公司 具有适应性可配置的模拟到数字转换器的无线接收器系统
US20090326624A1 (en) * 2008-06-27 2009-12-31 Medtronic, Inc. Multi-mode switched capacitor dc-dc voltage converter
CN102754321A (zh) * 2009-12-01 2012-10-24 天工方案公司 持续可变切换的电容器dc-dc电压转换器
US9295851B2 (en) * 2013-03-14 2016-03-29 Medtronic, Inc. Implantable medical device having power supply for generating a regulated power supply

Also Published As

Publication number Publication date
SE543140C2 (en) 2020-10-13
SE1930236A1 (en) 2019-07-05
GB2572115A (en) 2019-09-18
SE2030233A1 (en) 2019-07-05
CN110089017A (zh) 2019-08-02
GB2572115B (en) 2022-01-12
SE2130003A1 (en) 2020-01-04
GB201909552D0 (en) 2019-08-14

Similar Documents

Publication Publication Date Title
KR101596763B1 (ko) Can 트랜시버 회로의 제어 방법 및 장치
US10120406B1 (en) Adaptive common mode dimmer
US9774240B2 (en) Edge rate control gate driver for switching power converters
EP2584697B1 (fr) Amplificateur de puissance à contrôle numérique avec filtrage à bande large/commande de forme d'onde transitoire
US8421504B2 (en) Microcomputer, hysteresis comparator circuit, and voltage monitoring apparatus
US20160218709A1 (en) Current driver circuit
US7522670B2 (en) Digital transmission circuit and method providing selectable power consumption via single-ended or differential operation
JP2016509467A (ja) スイッチングパワーコンバータ
US11642538B2 (en) Voltage converting device
KR20230103963A (ko) 아날로그 프론트 엔드의 pwm 제어
CN115473498A (zh) 组合的d类放大器和降压调节器
WO2018103053A1 (fr) Convertisseur cc-cc pour dispositifs médicaux implantables
US20120256655A1 (en) Integrated circuit
US9906010B2 (en) Driving device and driving method
US20160072735A1 (en) Low voltage feedforward current assist ethernet line driver
US7917778B2 (en) Semiconductor integrated circuit and method for controlling semiconductor integrated circuit
US11638830B2 (en) Voltage converter for medical devices
US9667202B2 (en) Power amplifier and method
US20230128810A1 (en) Pre-biased mode switching in system having selectable pulse-width modulated (pwm) and linear operation
US7378896B2 (en) Single pin for multiple functional control purposes
US10224925B2 (en) Communication node
CN106374924B (zh) 使用模数转换器执行共模电压补偿的半导体器件
US10870010B2 (en) DC-DC converter for implantable medical devices
CN106936415A (zh) 一种低功耗应用延时电路
EP4047816A1 (fr) Procédé et dispositif de suivi d'enveloppe

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 16923195

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

ENP Entry into the national phase

Ref document number: 201909552

Country of ref document: GB

Kind code of ref document: A

Free format text: PCT FILING DATE = 20161208

WWE Wipo information: entry into national phase

Ref document number: 1930236-3

Country of ref document: SE

122 Ep: pct application non-entry in european phase

Ref document number: 16923195

Country of ref document: EP

Kind code of ref document: A1

WWE Wipo information: entry into national phase

Ref document number: 2030233-7

Country of ref document: SE

点击 这是indexloc提供的php浏览器服务，不要输入任何密码和下载