公开(公告)号：US20140247000A1

公开(公告)日：2014-09-04

申请号：US14349205

申请日：2012-08-10

Applicant: Andreas Schoenknecht

Inventor： Andreas Schoenknecht

IPC: H02M7/5387 ,  H02P6/14

CPC classification number: H02M7/53871 ,  H02M1/08 ,  H02M1/36 ,  H02M2001/0045 ,  H02M2001/322 ,  H02P6/14 ,  H03K17/0822

Abstract: The invention relates to a control device for triggering a semi-conductor switch of an inverter, the control device comprising: a switching signal amplification device, which is designed to amplify a switching signal generated by a control regulation of the inverter, and to generate a first switching control signal that triggers the semi-conductor switch in a switching mode; a current regulation device, which is coupled to a current sensor output of the semiconductor switch and is designed to generate a second switching control signal that triggers the semi-conductor switch in a linear mode; and a selection device, which is coupled to the switching signal amplification device and the current regulation device and is designed to output, on the basis of at least one mode selection signal, either the first switching control signal or the second switching control signal in order to trigger a control terminal of the semi-conductor switch.

Abstract translation: 本发明涉及一种用于触发逆变器的半导体开关的控制装置，该控制装置包括：开关信号放大装置，其设计成放大由逆变器的控制调节产生的开关信号，并产生一个 在切换模式下触发半导体开关的第一切换控制信号; 电流调节装置，其耦合到半导体开关的电流传感器输出，并被设计成产生以线性模式触发半导体开关的第二开关控制信号; 以及选择装置，其耦合到开关信号放大装置和电流调节装置，并被设计为基于至少一个模式选择信号按顺序输出第一开关控制信号或第二开关控制信号 触发半导体开关的控制端子。

公开(公告)号：US20140210548A1

公开(公告)日：2014-07-31

申请号：US13752282

申请日：2013-01-28

Applicant: QUALCOMM INCORPORATED

Inventor： Song S. Shi ,  Pengfei Li ,  Lennart Karl-Axel Mathe

IPC: G05F1/618 ,  H03G1/00

CPC classification number: H03G1/0005 ,  H02M1/088 ,  H02M3/158 ,  H02M2001/0045 ,  H02M2001/0058 ,  Y02B70/1491

Abstract: Techniques for reducing ringing arising from L-C coupling in a boost converter circuit during a transition from a boost ON state to a boost OFF state. In an aspect, during an OFF state of the boost converter circuit, the size of the high-side switch coupling a boost inductor to the load is gradually increased over time. In this manner, the on-resistance of the high-side switch is decreased from a first value to a second (lower) value over time, which advantageously reduces ringing (due to high quality factor or Q) when initially entering the OFF state, while maintaining low conduction losses during the remainder of the OFF state. Further techniques are provided for implementing the high-side switch as a plurality of parallel-coupled transistors.

Abstract translation: 在升压转换电路从升压导通状态转换到升压关断状态时，减少由升压转换器电路中的L-C耦合引起振铃的技术。 在一方面，在升压转换器电路的OFF状态期间，将升压电感器耦合到负载的高侧开关的尺寸随时间逐渐增加。 以这种方式，高边开关的导通电阻随着时间从第一值降低到第二（较低）值，这有利于当初始进入截止状态时减少振铃（由于高品质因数或Q） 同时在关闭状态的剩余期间保持低导通损耗。 提供了用于将高侧开关实现为多个并联耦合晶体管的进一步技术。

公开(公告)号：US20140176094A1

公开(公告)日：2014-06-26

申请号：US13811287

申请日：2012-12-28

Applicant: Xueliang Yang

Inventor： Xueliang Yang

IPC: G05F1/62

CPC classification number: G05F1/62 ,  H02M3/1582 ,  H02M2001/0045 ,  Y10T307/707

Abstract: The present invention provides a DC/DC module of a LCD driving circuit. The DC/DC module comprises a buck-boost circuit, which is used to convert the input voltage of the DC/DC module into a gate off-state voltage VGL; a LDO circuit, which is connected in series to the buck-boost circuit, used to convert the input voltage of the buck-boost circuit into a lower limit output voltage VBB of a liquid crystal driver; a BUCK circuit, which is used to convert the input voltage of the DC/DC module into a operating voltage VDD of a specific IC; a charge pump circuit, which is used to convert the input voltage of the DC/DC module into a gate on-state voltage VGH; wherein, the input voltage of the DC/DC module is used directly as an upper limit output voltage VAA of the liquid crystal driver. The DC/DC module according to the present invention has simple circuit structure, low hardware cost, and high load capacity.

Abstract translation: 本发明提供一种LCD驱动电路的DC / DC模块。 DC / DC模块包括降压 - 升压电路，用于将DC / DC模块的输入电压转换成栅极截止电压VGL; 与降压 - 升压电路串联连接的LDO电路，用于将降压 - 升压电路的输入电压转换为液晶驱动器的下限输出电压VBB; BUCK电路，用于将DC / DC模块的输入电压转换为特定IC的工作电压VDD; 电荷泵电路，用于将DC / DC模块的输入电压转换为栅极导通状态电压VGH; 其中，DC / DC模块的输入电压直接用作液晶驱动器的上限输出电压VAA。 根据本发明的DC / DC模块具有电路结构简单，硬件成本低，负载能力高。

公开(公告)号：US20140152104A1

公开(公告)日：2014-06-05

申请号：US13705632

申请日：2012-12-05

Applicant: Nien-Hui Kung

Inventor： Nien-Hui Kung

IPC: G05F1/10

CPC classification number: G05F1/10 ,  H02M3/156 ,  H02M2001/0045 ,  H02M2001/009 ,  Y10T307/438

Abstract: The present invention discloses a multi-output switching regulator and a multi-output power supply method. The multi-output switching regulator includes: a power stage circuit for operating at least a power switch included therein and only one inductor included therein in response to a pulse width modulation (PWM) signal, thereby converting an input voltage to a converted voltage; a multiple outputs circuit for receiving the converted voltage to generate a plurality of output currents; a voltage detecting circuit for generating a feedback signal according to the converted voltage; and a PWM signal generation circuit for generating the PWM signal in response to the feedback signal.

Abstract translation: 本发明公开了一种多输出开关调节器和多输出电源方式。 多输出开关稳压器包括：功率级电路，用于响应于脉宽调制（PWM）信号至少操作其中包括的功率开关和仅包括一个电感器，从而将输入电压转换为转换的电压; 多输出电路，用于接收转换的电压以产生多个输出电流; 电压检测电路，用于根据转换的电压产生反馈信号; 以及用于响应于反馈信号产生PWM信号的PWM信号产生电路。

公开(公告)号：US20140078785A1

公开(公告)日：2014-03-20

申请号：US13962498

申请日：2013-08-08

Applicant: FUJI ELECTRIC CO., LTD.

Inventor： Kenichi NISHIJIMA

IPC: H02M3/335

CPC classification number: H02M3/33576 ,  H02M3/33523 ,  H02M2001/0045

Abstract: An adapter power supply of the invention comprises a switching element that performs switching of an input voltage obtained by rectifying an input AC voltage to deliver switched voltage to a primary winding of an isolating transformer, a diode that rectifies a voltage obtained across a secondary winding of the isolating transformer to obtain a DC output voltage, and a thermoelectric conversion element that performs thermoelectric conversion to variably set the DC output voltage corresponding to a temperature difference between a heated temperature of the switching element or the diode and an atmospheric temperature. The thermoelectric conversion element is disposed between a heat sink attached to the switching element or the diode and a package for containing a main body of the adapter power supply.

Abstract translation: 本发明的适配器电源包括开关元件，其执行通过整流输入AC电压而获得的输入电压的切换，以将开关电压传递到隔离变压器的初级绕组;二极管，其对跨越次级绕组获得的电压进行整流 隔离变压器以获得DC输出电压;以及热电转换元件，其执行热电转换以可变地设置对应于开关元件或二极管的加热温度与大气温度之间的温度差的DC输出电压。 热电转换元件设置在连接到开关元件或二极管的散热器和用于容纳适配器电源的主体的封装之间。

公开(公告)号：US20140062440A1

公开(公告)日：2014-03-06

申请号：US14018847

申请日：2013-09-05

Applicant: Fairchild Semiconductor Corporation

Inventor： James Garrett

IPC: H02M3/156

CPC classification number: H02M3/156 ,  G01R19/0092 ,  H02M2001/0009 ,  H02M2001/0045

Abstract: A device and method for sensing an inductor current in an inductor is provided that generates a voltage signal proportionate to the inductor current if the inductor is connected to a positive supply and simulates the inductor current if the inductor is not connected to the positive supply. The voltage signal may be generated by sampling an input voltage from the inductor onto a capacitor if the inductor is connected to the positive supply. The inductor current may be simulated by generating a simulation current and pushing the simulation current onto the capacitor.

Abstract translation: 提供了用于感测电感器中的电感器电流的装置和方法，其产生与电感器电流成比例的电压信号，如果电感器连接到正电源并且如果电感器未连接到正电源则模拟电感器电流。 如果电感器连接到正电源，则可以通过将来自电感器的输入电压采样到电容器上来产生电压信号。 可以通过产生模拟电流并将模拟电流推到电容器上来模拟电感器电流。

公开(公告)号：US20140028101A1

公开(公告)日：2014-01-30

申请号：US13558707

申请日：2012-07-26

Applicant: Piotr Markowski ,  Andreas Stiedl ,  Karl Kropf ,  Harald Herbert Etlinger ,  Klaus Riedmueller

Inventor： Piotr Markowski ,  Andreas Stiedl ,  Karl Kropf ,  Harald Herbert Etlinger ,  Klaus Riedmueller

IPC: H02J1/00 ,  H02J3/00

CPC classification number: H02J3/02 ,  H02M3/158 ,  H02M3/1584 ,  H02M2001/0045 ,  H02M2001/0077 ,  Y10T307/658

Abstract: A power supply for providing power to a load includes a first subconverter having input terminals for coupling to a first input power source and output terminals and a second subconverter having input terminals for coupling to a second input power source and output terminals. The first subconverter is configured to supply an AC current and an AC voltage at its output terminals. The second subconverter is configured to supply one of a substantially constant DC current and a substantially constant DC voltage at its output terminals. At least one of the output terminals of the first subconverter is coupled to at least one of the output terminals of the second subconverter. The power supply is configured to supply the AC current, the AC voltage, the substantially constant DC current and the substantially constant DC voltage substantially simultaneously to the load.

Abstract translation: 用于向负载提供电力的电源包括具有用于耦合到第一输入电源和输出端子的输入端子的第一子转换器和具有用于耦合到第二输入电源和输出端子的输入端子的第二子转换器。 第一子转换器被配置为在其输出端提供交流电流和交流电压。 第二子转换器被配置为在其输出端提供基本恒定的直流电流和基本上恒定的直流电压之一。 第一子转换器的至少一个输出端耦合到第二子转换器的至少一个输出端。 电源被配置为向负载提供基本上同时的AC电流，AC电压，基本恒定的DC电流和基本上恒定的DC电压。

公开(公告)号：US20130314960A1

公开(公告)日：2013-11-28

申请号：US13862594

申请日：2013-04-15

Applicant: HONG FU JIN PRECISION INDUSTRY (WUHAN) CO., LTD. ,  HON HAI PRECISION INDUSTRY CO., LTD.

Inventor： ZHI-YONG GAO ,  TING-TING WU ,  YU-LIN LIU

IPC: H02M7/217

CPC classification number: H02M7/217 ,  H02M7/06 ,  H02M2001/0045

Abstract: An exemplary direct current (DC) voltage generating apparatus for generating stable DC voltages includes a voltage conversion circuit, a voltage control circuit, and a voltage regulating circuit. The voltage conversion circuit receives an alternating current (AC) voltage, and converts the AC voltage to a first DC voltage. The voltage control circuit receives the first DC voltage, and converts the first DC voltage to a second DC voltage and a control signal. The voltage regulating circuit receives the control signal, and regulates the second DC voltage to a stable second DC voltage at the voltage control circuit according to the control signal.

Abstract translation: 用于产生稳定DC电压的示例性直流（​​DC）电压产生装置包括电压转换电路，电压控制电路和电压调节电路。 电压转换电路接收交流（AC）电压，并将交流电压转换为第一直流电压。 电压控制电路接收第一直流电压，并将第一直流电压转换为第二直流电压和控制信号。 电压调节电路接收控制信号，并根据控制信号将第二直流电压调节到电压控制电路处的稳定的第二直流电压。

公开(公告)号：US20130300495A1

公开(公告)日：2013-11-14

申请号：US13892176

申请日：2013-05-10

Applicant: ams AG

Inventor： Gregor SCHATZBERGER

IPC: H02M3/07

CPC classification number: H02M3/07 ,  H02M2001/0045 ,  H02M2001/007

Abstract: A charge pump circuit (11) comprises a first stage (31) and at least a second stage (32), each having a capacitor (130, 230) and a current source (100, 200). The charge pump circuit (11) is configured such that, in a first phase (A) of operation, the capacitor (130) of the first stage (31) is switched in series to the current source (100) of the first stage (31) and the capacitor (230) of the second stage (32) is switched in series to the current source (200) of the second stage (32) and that, in a second phase (B) of operation, the capacitor (130) of the first stage (31) and the capacitor (230) of the second stage (32) are switched in series for providing a supply voltage (VHF) at an output (15) of the charge pump circuit (11). A comparator signal (SCOM) is generated by comparing a voltage at an electrode of one of the capacitors (130, 230) of the first and the at least second stage (31, 32) with a reference voltage (VR). The first and the second phase (A, B) are set depending on the comparator signal (SCOM).

Abstract translation: 电荷泵电路（11）包括第一级（31）和至少第二级（32），每级具有电容器（130,230）和电流源（100,200）。 电荷泵电路（11）被配置为使得在第一阶段（A）中，第一级（31）的电容器（130）与第一级的电流源（100）串联切换 31）和第二级（32）的电容器（230）与第二级（32）的电流源（200）串联切换，并且在第二阶段（B）中，电容器（130） ）和第二级（32）的电容器（230）串联切换，以在电荷泵电路（11）的输出端（15）提供电源电压（VHF）。 通过将第一和至少第二级（31,32）的电容器（130,230）中的一个的电极的电压与参考电压（VR）进行比较来产生比较器信号（SCOM）。 第一和第二相（A，B）根据比较器信号（SCOM）设置。

公开(公告)号：US20130193941A1

公开(公告)日：2013-08-01

申请号：US13750489

申请日：2013-01-25

Applicant: Dialog Semiconductor GmbH

Inventor： Michele DeFazio

IPC: G05F1/46

CPC classification number: G05F1/46 ,  H02M3/1588 ,  H02M2001/0045 ,  H02M2003/1566 ,  Y02B70/1466

Abstract: The present document relates to switched power supplies. In particular, the present document relates to a method and system for controlling a bypass transistor in a DC-to-DC converter. A power converter configured to convert an input voltage at an input of the power converter into an output voltage at an output of the power converter is described. The power converter comprises a DC-to-DC converter comprising a high side switch; a bypass transistor parallel to the DC-to-DC converter, configured to couple a load at the output of the power converter to the input voltage during an on-state of the bypass transistor; and current sensing means configured to sense a current through the high side switch; wherein the bypass transistor is controlled based at least on the sensed current through the high side switch.

Abstract translation: 本文件涉及开关电源。 特别地，本文件涉及用于控制DC-DC转换器中的旁路晶体管的方法和系统。 电力转换器被配置为将功率转换器的输入端的输入电压转换为功率转换器的输出端的输出电压。 所述功率转换器包括DC-DC转换器，其包括高侧开关; 与所述DC-DC转换器并联的旁路晶体管，被配置为在所述旁路晶体管的导通状态期间将所述功率转换器的输出端的负载耦合到所述输入电压; 以及电流感测装置，被配置为感测通过所述高侧开关的电流; 其中所述旁路晶体管至少基于通过所述高侧开关的感测电流来控制。