公开(公告)号：US20140119063A1

公开(公告)日：2014-05-01

申请号：US14047146

申请日：2013-10-07

Applicant: LITE-ON TECHNOLOGY CORP.

Inventor： PO-JUNG TSENG ,  CHIN-CHUAN HUANG ,  SIN-LI LIN ,  YU-KANG LO ,  HUANG-JEN CHIU ,  JING-YUAN LIN

IPC: H02M3/335

CPC classification number: H02M3/33592 ,  H02M1/36 ,  H02M2001/0019 ,  Y02B70/1475

Abstract: A power converting device includes a main switch, a synchronous rectifier switch, a rectifier-filter circuit which outputs an output voltage, and a synchronous rectifier control circuit which includes a sampling circuit coupled to the rectifier-filter circuit for outputting a voltage variation signal, a differential amplifier circuit that outputs an amplified signal by adding the output voltage and an offset voltage to the voltage variation signal attenuated thereby, and a comparison circuit that compares the amplified signal with the output voltage so as to output a trigger signal, such that the synchronous rectifier switch is turned on when the main switch is turned off, and is turned off prior to conduction of the main switch.

Abstract translation: 电力转换装置包括主开关，同步整流开关，输出输出电压的整流滤波电路和同步整流控制电路，该电路包括与整流滤波电路耦合的采样电路，用于输出电压变化信号， 差分放大器电路，通过将输出电压和偏移电压加到由其衰减的电压变化信号中来输出放大信号;以及比较电路，其将放大的信号与输出电压进行比较，以便输出触发信号，使得 当主开关关闭时，同步整流开关导通，并在主开关导通之前关闭。

公开(公告)号：US20150381060A1

公开(公告)日：2015-12-31

申请号：US14738984

申请日：2015-06-15

Applicant: LITE-ON TECHNOLOGY CORP.

Inventor： WING-KEUNG ENG ,  PO-JUNG TSENG ,  WEI-LIEH LAI

IPC: H02M3/335

CPC classification number: H02M3/3376 ,  H02M2001/0032 ,  H02M2001/0054 ,  H02M2001/0058 ,  Y02B70/1433 ,  Y02B70/1491 ,  Y02B70/16

Abstract: A quasi-resonant half-bridge converter includes a switch unit including first and second switches that are coupled in series, a capacitor unit coupled to the switch unit in parallel, a rectifier unit, an output capacitor, and a transformer coupled to the aforesaid components. The first and second switches are respectively controlled using first and second control signals that have a constant frequency. Duty cycles of the first and second control signals may be adjusted based upon a DC output voltage across the output capacitor for promoting conversion efficiency of the converter when operating at light load.

Abstract translation: 准谐振半桥转换器包括开关单元，其包括串联耦合的第一和第二开关，并联耦合到开关单元的电容器单元，整流器单元，输出电容器和耦合到上述组件的变压器 。 使用具有恒定频率的第一和第二控制信号来分别控制第一和第二开关。 可以基于输出电容器两端的直流输出电压来调节第一和第二控制信号的占空比，以便在轻载时工作时提高转换器的转换效率。

公开(公告)号：US20170264125A1

公开(公告)日：2017-09-14

申请号：US15229331

申请日：2016-08-05

Applicant: LITE-ON ELECTRONICS (GUANGZHOU) LIMITED ,  LITE-ON TECHNOLOGY CORP.

Inventor： MING-TSUNG HSIEH ,  YI-CHAO FAN ,  PO-JUNG TSENG ,  SHANG-JIN YAN ,  YU-KANG LO

IPC: H02J7/00

CPC classification number: H02J7/0068 ,  H02J7/0022 ,  H02J7/007

Abstract: An energy management system includes a power supply module, a charging module, an interface module and an energy management module. The power supply module provides an input power. The charging module generates, based on the input power, a first charge power and a second charge power in response to a first charge control signal and a second charge control signal. The interface module detects electrical energy stored in an energy storage device to generate a detection result. In response to the detection result, the energy management module determines an operating state of the energy storage device, and generates one of the first and second charge control signals.

公开(公告)号：US20170126125A1

公开(公告)日：2017-05-04

申请号：US15003931

申请日：2016-01-22

Applicant: LITE-ON TECHNOLOGY CORP.

Inventor： JING-YUAN LIN ,  TSE-WEI CHAO ,  YAO-CHING HSIEH ,  HUANG-JEN CHIU ,  YU-KANG LO ,  PO-JUNG TSENG

IPC: H02M3/158

CPC classification number: H02M3/158 ,  H02M3/1584 ,  H02M2003/1586

Abstract: An interleaved buck converter performs buck conversion by controlling operation of each of two switches thereof between an ON state and an OFF state. The switches have the same switching period and the same ON time interval, and a time delay from switching of one of the switches into the ON state to switching of the other one of the switches into the ON state equals the ON time interval of the switches minus a predetermined time interval.

公开(公告)号：US20160373001A1

公开(公告)日：2016-12-22

申请号：US14881539

申请日：2015-10-13

Applicant: Lite-On Technology Corp.

Inventor： YU-CHEN LIU ,  JING-YUAN LIN ,  HUANG-JEN CHIU ,  YU-KANG LO ,  TRONG-NHA QUANG ,  PO-JUNG TSENG

IPC: G05F1/00

CPC classification number: H02M1/08 ,  H02M3/158 ,  H02M2001/0048 ,  H02M2001/0054 ,  H02M2001/0058

Abstract: A buck converter includes: a first input terminal; a second input terminal; a first output terminal; a second output terminal; an internal node; a first inductor, a second inductor and a main switch connected in series between the first input terminal and the internal node; a third inductor connected between the internal node and the first output terminal; a fourth inductor connected between the second input terminal and the second output terminal; a first auxiliary switch connected between the internal node and the second output terminal; and a second auxiliary switch connected between the second input terminal and the first output terminal.

Abstract translation: 降压转换器包括：第一输入端; 第二输入端; 第一输出端子; 第二输出端子; 内部节点 第一电感器，第二电感器和主开关串联连接在第一输入端子和内部节点之间; 连接在所述内部节点和所述第一输出端子之间的第三电感器; 连接在第二输入端子和第二输出端子之间的第四电感器; 连接在所述内部节点和所述第二输出端子之间的第一辅助开关; 以及连接在第二输入端子和第一输出端子之间的第二辅助开关。

公开(公告)号：US20140112027A1

公开(公告)日：2014-04-24

申请号：US14049456

申请日：2013-10-09

Applicant: LITE-ON TECHNOLOGY CORP.

Inventor： PO-JUNG TSENG ,  CHIN-CHUAN HUANG ,  SIN-LI LIN ,  YU-KANG LO ,  HUANG-JEN CHIU ,  JING-YUAN LIN

IPC: H02M3/335

CPC classification number: H02M3/33546 ,  H02M3/33592 ,  Y02B70/1475

Abstract: A power converting device includes a transformer, a first switch coupled to a primary winding of the transformer, a PWM controller which generates a first PWM signal for controlling conduction and non-conduction of the first switch and which generates a control signal that leads the first PWM signal, a rectifier-filter circuit which rectifies an induced voltage generated by a secondary winding of the transformer, a second switch coupled to the secondary winding, and a synchronous rectifier controller which controls conduction and non-conduction of the second switch, and which controls, according to the control signal, the second switch to become non-conductive prior to conduction of the first switch.

Abstract translation: 电力转换装置包括变压器，耦合到变压器的初级绕组的第一开关，PWM控制器，其产生用于控制第一开关的导通和非导通的第一PWM信号，并产生导通第一开关的控制信号 PWM信号，整流滤波电路，其对由变压器的次级绕组产生的感应电压进行整流，耦合到次级绕组的第二开关和控制第二开关的导通和不导通的同步整流器控制器，以及哪个 根据控制信号控制第二开关在第一开关导通之前变得不导通。

公开(公告)号：US20170133926A1

公开(公告)日：2017-05-11

申请号：US15003923

申请日：2016-01-22

Applicant: LITE-ON TECHNOLOGY CORP.

Inventor： JING-YUAN LIN ,  KUAN-FU CHOU ,  YAO-CHING HSIEH ,  HUANG-JEN CHIU ,  YU-KANG LO ,  PO-JUNG TSENG

IPC: H02M1/42 ,  H02M3/335

CPC classification number: H02M1/4241 ,  H02M3/33507 ,  Y02B70/126 ,  Y02B70/1433 ,  Y02P80/112

Abstract: A single-stage AC-to-DC converter includes a bus capacitor, a power factor correcting module, a resonant converting module and a control module. The power factor correcting module generates, based on an AC (alternating current) input voltage, a first control signal and a second control signal, a DC (direct current) bus voltage across the bus capacitor and an intermediate voltage switching between the bus voltage and zero. The resonant converting module generates a DC output voltage based on the intermediate voltage. The control module generates, based on the bus voltage, the first and second control signals, each of which switches between an active state and an inactive state and has a duty cycle associated with the bus voltage.

公开(公告)号：US20170062123A1

公开(公告)日：2017-03-02

申请号：US15154101

申请日：2016-05-13

Applicant: LITE-ON TECHNOLOGY CORP.

Inventor： TE-HONG YANG ,  MING-TSUNG HSIEH ,  PO-JUNG TSENG ,  YU-KANG LO

IPC: H01F27/29 ,  H01F27/28

CPC classification number: H01F27/306 ,  H01F27/2828 ,  H01F27/325

Abstract: A multiple winding transformer includes a core unit, a first winding set which has N (N≧3) number of windings, and a second winding set which has at least one winding. The windings of the first winding set are overlappingly wound around the core unit. Each of the windings includes an input terminal and an output terminal. The input terminal of one of the windings is spaced apart from the input terminal of a next one of the windings by (360/N) degrees, and the input terminals are interconnected to form an input end. The output terminal of one of the windings is spaced apart from the output terminal of a next one of the windings by (360/N) degrees, and the output terminals are interconnected to form an output end.

Abstract translation: 多绕组变压器包括芯单元，具有N（N≥3）绕组数的第一绕组组和具有至少一个绕组的第二绕组组。 第一绕组的绕组重叠缠绕在芯单元上。 每个绕组包括输入端子和输出端子。 一个绕组的输入端子与下一个绕组的输入端子间隔开（360 / N）度，并且输入端子互连以形成输入端。 一个绕组的输出端子与下一个绕组的输出端子间隔开（360 / N）度，并且输出端子互连以形成输出端。

公开(公告)号：US20160380548A1

公开(公告)日：2016-12-29

申请号：US14924859

申请日：2015-10-28

Applicant: LITE-ON TECHNOLOGY CORP.

Inventor： YU-CHEN LIU ,  JING-YUAN LIN ,  HUANG-JEN CHIU ,  YU-KANG LO ,  PO-JUNG TSENG

IPC: H02M3/335

CPC classification number: H02M3/33546 ,  H02M3/33569 ,  H02M2001/0058 ,  Y02B70/1433 ,  Y02B70/1491 ,  Y02P80/112

Abstract: A resonant converter includes: a transformer including a first primary winding, a second primary winding and a secondary winding, each primary winding having a first end terminal and a second end terminal; a first switch coupled to the first end terminal of the first primary winding; a resonant inductor and a resonant capacitor connected in series between the second end terminal of the first primary winding and the first end terminal of the second primary winding; a second switch coupled between the first end terminals of the first and second primary windings; and a third switch coupled between the second end terminals of the first and second primary windings.

Abstract translation: 谐振转换器包括：变压器，包括第一初级绕组，第二初级绕组和次级绕组，每个初级绕组具有第一端子端子和第二端子端子; 第一开关，其耦合到所述第一初级绕组的所述第一端子; 串联连接在第一初级绕组的第二端子与第二初级绕组的第一端子之间的谐振电感器和谐振电容器; 耦合在第一和第二初级绕组的第一端子之间的第二开关; 以及耦合在第一和第二初级绕组的第二端子之间的第三开关。