公开(公告)号：US20180097441A1

公开(公告)日：2018-04-05

申请号：US15719725

申请日：2017-09-29

Applicant: Delta Electronics (Thailand) Public Company Limited

Inventor： Lei Chang ,  Hao Sun ,  Jinfa Zhang

IPC: H02M1/42 ,  H02M7/12 ,  H02M3/335 ,  H02M1/32 ,  H02M3/28 ,  H02H7/122 ,  H02M3/155

CPC classification number: H02M1/4233 ,  H02H7/122 ,  H02H9/04 ,  H02M1/32 ,  H02M3/155 ,  H02M3/285 ,  H02M3/33569 ,  H02M7/125 ,  H02M7/219 ,  H02M7/40 ,  H02M7/5387 ,  H02M2001/0064 ,  H02M2003/1557 ,  Y02B70/126

Abstract: The present disclosure provides a power conversion device for receiving and converting an AC power provided by an AC power source. The power conversion device includes a power conversion circuit and a surge bypass circuit. The power conversion circuit comprises a bridge switching unit and a bus capacitor. The surge bypass circuit comprises a rectification circuit and an inductive coupling magnetic element. The inductive coupling magnetic element is electrically connected with the rectification circuit in series, and forms a multi-terminal network with the rectification circuit. The multi-terminal network comprises plural AC terminals and two DC terminals. The AC terminals are electrically connected with the AC power source. The bridge switching unit and the bus capacitor are electrically connected with two DC terminals in parallel.

公开(公告)号：US09832823B2

公开(公告)日：2017-11-28

申请号：US14915292

申请日：2014-07-10

Applicant: OSRAM GmbH

Inventor： Rene Twardzik

IPC: H05B33/08 ,  H02M3/156 ,  H02M7/217 ,  H02M3/155

CPC classification number: H05B33/0815 ,  H02M3/156 ,  H02M7/217 ,  H02M2003/1557 ,  H05B33/0818 ,  H05B33/0845 ,  Y02B20/347

Abstract: Various embodiments may relate to a load driving circuit and an illumination apparatus including the same. The load driving circuit includes a Single-Ended Primary Inductor Converter (SEPIC) converter adapted to convert an input system voltage into a DC output voltage, and a BUCK converter 200 adapted to regulate a current and provide the regulated current to a load. The load driving circuit further includes a first diode and a second diode which are connected so that the SEPIC converter and the BUCK converter share one switch. According to various embodiments, it is possible to obtain constant current output characteristics and high power factor with a simple circuit structure and a low cost.

公开(公告)号：US09825527B2

公开(公告)日：2017-11-21

申请号：US14457636

申请日：2014-08-12

Applicant: Continental Automotive Systems, Inc.

Inventor： Mikhail Zarkhin ,  Alfons Fisch

IPC: H02M3/156 ,  H02M3/158 ,  H02M3/155

CPC classification number: H02M3/156 ,  H02M3/158 ,  H02M2003/1557

Abstract: A method and apparatus for generating a pulse width modulation (PWM) control signal generates a sawtooth ramp signal at a first frequency under standard operating conditions using a ramp generator, and generates a sawtooth ramp at a second frequency under alternative operating conditions. The sawtooth ramp is combined with an error threshold by a PWM controller to generate a square wave PWM control signal. The error threshold is adjusted simultaneous with adjusting the frequency of the sawtooth ramp, thereby preventing either a voltage overshoot and a voltage undershoot.

公开(公告)号：US20170310221A1

公开(公告)日：2017-10-26

申请号：US15494063

申请日：2017-04-21

Applicant: VANNER, INC.

Inventor： ALEXANDER ISURIN ,  ALEXANDER COOK

IPC: H02M3/335 ,  H02M3/158 ,  H02M7/537 ,  H02M1/08 ,  H02M1/00

CPC classification number: H02M3/335 ,  H02M1/083 ,  H02M3/005 ,  H02M3/158 ,  H02M3/337 ,  H02M7/48 ,  H02M7/537 ,  H02M2001/0048 ,  H02M2001/0077 ,  H02M2003/1557

Abstract: An isolated step-up converter having first and second stages is described herein. The second stage can provide either DC or AC output based on the various topologies described. Resonance inductors and capacitors are used and tuned to a commutation frequency in some embodiments. Capacitors and inductors are also used in the first stage.

公开(公告)号：US09800169B2

公开(公告)日：2017-10-24

申请号：US15397954

申请日：2017-01-04

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Masato Himeda ,  Hiroyuki Asano

IPC: H05B33/08 ,  H02M7/06 ,  H02M1/32 ,  H02M3/155 ,  H02M1/42

CPC classification number: H02M7/06 ,  H02M1/32 ,  H02M1/4241 ,  H02M2003/1557 ,  H05B33/0815 ,  H05B33/0887 ,  Y02B20/346 ,  Y02B70/126

Abstract: A DC power supply device includes a rectifier circuit, a conversion circuit and a control circuit. Conversion circuit includes a first capacitor, a first series circuit, a second series circuit, a third series circuit, a second diode and a Zener diode. First series circuit includes a first inductor and a switching element connected in series with each other. Second series circuit includes a second capacitor and a second inductor connected in series with each other. Third series circuit includes a first diode and a third capacitor connected in series with each other. First series circuit is electrically connected between both ends of first capacitor. Second series circuit is electrically connected in parallel with switching element. A cathode of Zener diode is connected with a connection point of first inductor and second capacitor. Zener diode has a Zener voltage larger than an output voltage of conversion circuit.

公开(公告)号：US20160323947A1

公开(公告)日：2016-11-03

申请号：US15134759

申请日：2016-04-21

Applicant: Panasonic Intellectual Property Management Co., Lt

Inventor： Keisuke SEKI ,  Takeshi KAMOI ,  Daisuke YAMAHARA ,  Shun KUSUDA

IPC: H05B33/08 ,  H02M1/08 ,  H02M3/156

CPC classification number: H05B33/0815 ,  H02M1/32 ,  H02M1/4208 ,  H02M3/156 ,  H02M2001/0009 ,  H02M2003/1557 ,  H05B33/0851 ,  Y02B70/126

Abstract: A lighting device which outputs a current to a solid-state light emitting element includes: a direct current-to-direct current (DC-to-DC) converter; and an output detector which detects an output from the DC-to-DC converter, wherein the DC-to-DC converter includes: a switching element; a control device which controls the switching element in order to generate the output; and a current detector which detects a current which flows through the switching element, and if a current value of the current detected by the current detector is less than a predetermined threshold, the control device controls the switching element according to a duty cycle determined based on an output value of the output detected by the output detector, and if the current value is greater than the predetermined threshold, the control device controls the switching element according to a duty cycle lower than the duty cycle determined based on the output value.

Abstract translation: 向固态发光元件输出电流的照明装置包括：直流 - 直流电流（DC-DC）转换器; 以及检测来自所述DC-DC转换器的输出的输出检测器，其中所述DC-DC转换器包括：开关元件; 控制装置，其控制所述开关元件以产生所述输出; 以及电流检测器，其检测流过所述开关元件的电流，并且如果由所述电流检测器检测到的电流的电流值小于预定阈值，则所述控制装置根据基于 由输出检测器检测到的输出的输出值，并且如果电流值大于预定阈值，则控制装置根据低于基于输出值确定的占空比的占空比来控制开关元件。

公开(公告)号：US09444326B2

公开(公告)日：2016-09-13

申请号：US14608749

申请日：2015-01-29

Applicant: TDK-LAMBDA UK LIMITED

Inventor： Andrew John Skinner ,  Atul Shriram Abhyankar ,  Carlos Toyos Bada

IPC: H02M7/06 ,  H02M1/42 ,  H02M7/10 ,  H02M3/155

CPC classification number: H02M1/4225 ,  H02M7/06 ,  H02M7/10 ,  H02M2003/1557 ,  Y02B70/126

Abstract: A SEPIC-type voltage converter for converting an input voltage supplied by a power supply into an output voltage comprises an inductive component comprising primary and secondary windings, an output capacitor for delivering power to a load by way of an output node, an AC coupling capacitor, a first rectifier for rectifying the output voltage, and a switch for periodically switching between an ON state in which the primary winding is energized by the power supply and in which the secondary winding is energized by the coupling capacitor, and an OFF state in which the output capacitor is charged by both the primary winding and the secondary winding. A second rectifier is connected in series with the secondary winding and the secondary winding is inductively coupled to the primary winding such that the secondary winding is influenced by changes in the voltage applied across the primary winding by the power supply.

Abstract translation: 用于将由电源提供的输入电压转换为输出电压的SEPIC型电压转换器包括包括初级和次级绕组的电感元件，用于通过输出节点向负载输送功率的输出电容器，AC耦合电容器 ，用于整流输出电压的第一整流器和用于在初级绕组由电源通电并且其中次级绕组由耦合电容器通电的导通状态之间周期性切换的开关以及其中 输出电容器由初级绕组和次级绕组充电。 第二整流器与次级绕组串联连接，次级绕组感应耦合到初级绕组，使得次级绕组受到由电源施加在初级绕组两端的电压变化的影响。

公开(公告)号：US20160118817A1

公开(公告)日：2016-04-28

申请号：US14892860

申请日：2014-05-27

Applicant: Japan Aerospace Exploration Agency

Inventor： Masatoshi UNO ,  Akio KUKITA

IPC: H02J7/00 ,  H01M10/44

CPC classification number: H02J7/007 ,  H01M10/42 ,  H01M10/44 ,  H01M2010/4271 ,  H02J7/0019 ,  H02J7/0052 ,  H02J7/345 ,  H02J2007/0059 ,  H02M3/005 ,  H02M3/156 ,  H02M7/103 ,  H02M2001/0058 ,  H02M2001/007 ,  H02M2001/009 ,  H02M2003/1557 ,  Y02B40/90 ,  Y02B70/1491

Abstract: The disclosure describes a charge device capable of charging electricity storage cells while eliminating a voltage variation among the electricity storage cells without a need for at least a circuit section playing a role in voltage equalization among the electricity storage cells to be designed to have a large current capacity, and describes a charge-discharge device constructed by additionally equipping a discharging function with the charge device. Provided are a charge device and a charge-discharge device each of which comprises a convertor, an input circuit, and a multi-stage voltage doubler rectifier circuit. An element in the convertor configured to be applied with a rectangular waveform voltage is connected to the multi-stage voltage doubler rectifier circuit via the input circuit to thereby realize a voltage equalization function, and an output section of the convertor is connected to the multi-stage voltage doubler rectifier circuit to thereby realize a charging-discharging function.

Abstract translation: 本公开描述了一种能够对蓄电单元进行充电的充电装置，同时消除了蓄电单元之间的电压变化，而不需要在设计为具有大电流的蓄电单元之间至少在电压均衡中起作用的电路部分 并描述了通过向充电装置附加放电功能而构成的充放电装置。 提供了一种充电装置和充放电装置，每个充电装置和充放电装置包括转换器，输入电路和多级倍压器整流电路。 配置为施加矩形波形电压的转换器中的元件经由输入电路连接到多级倍压器整流器电路，从而实现电压均衡功能，并且转换器的输出部分连接到多级倍增器整流电路， 从而实现充放电功能。

公开(公告)号：US20160049869A1

公开(公告)日：2016-02-18

申请号：US14457636

申请日：2014-08-12

Applicant: Continental Automotive Systems, Inc.

Inventor： Mikhail Zarkhin ,  Alfons Fisch

IPC: H02M3/156

CPC classification number: H02M3/156 ,  H02M3/158 ,  H02M2003/1557

Abstract: A method and apparatus for generating a pulse width modulation (PWM) control signal generates a sawtooth ramp signal at a first frequency under standard operating conditions using a ramp generator, and generates a sawtooth ramp at a second frequency under alternative operating conditions. The sawtooth ramp is combined with an error threshold by a PWM controller to generate a square wave PWM control signal. The error threshold is adjusted simultaneous with adjusting the frequency of the sawtooth ramp, thereby preventing either a voltage overshoot and a voltage undershoot.

Abstract translation: 用于产生脉冲宽度调制（PWM）控制信号的方法和装置在标准工作条件下使用斜坡发生器产生第一频率的锯齿波斜坡信号，并且在替代操作条件下以第二频率产生锯齿波形。 通过PWM控制器将锯齿波形与误差阈值相结合，产生方波PWM控制信号。 通过调整锯齿波形的频率同时调整误差阈值，从而防止电压过冲和电压下冲。

公开(公告)号：US09203321B1

公开(公告)日：2015-12-01

申请号：US14194568

申请日：2014-02-28

Applicant: Universal Lighting Technologies, Inc.

Inventor： Wei Xiong

IPC: H05B37/02 ,  H02M3/335 ,  H05B33/08

CPC classification number: H05B33/0809 ,  H02M3/1588 ,  H02M7/103 ,  H02M2001/0058 ,  H02M2003/1557 ,  H05B33/0815 ,  H05B33/0851 ,  Y02B70/1425 ,  Y02B70/1466 ,  Y02B70/1491

Abstract: A light fixture includes a housing, a non-isolated driver circuit with a boost type voltage doubler output stage, and a light source. The load or light source may be a plurality of LEDs. The housing supports the light source and the driver circuit, and the housing may include a lens for the one or more LEDs of the light source. The driver circuit provides power from the power source to the light source. The light source provides light in response to receiving power. The boost type voltage doubler output stage is a voltage doubler output stage having a boost inductor connected between an input (e.g., connected to an output of an inverter of the driver circuit) and an output (e.g., connected to the load or light source) of the boost type voltage doubler output stage.

Abstract translation: 灯具包括壳体，具有升压型倍压器输出级的非隔离驱动电路和光源。 负载或光源可以是多个LED。 壳体支撑光源和驱动器电路，并且壳体可以包括用于光源的一个或多个LED的透镜。 驱动器电路从电源向光源提供电力。 光源响应于接收功率而提供光。 升压型倍压器输出级是具有连接在输入（例如，连接到驱动器电路的反相器的输出端）和输出（例如，连接到负载或光源）的输出之间的升压电感器的倍压器输出级， 的升压型倍压器输出级。