公开(公告)号：US11431248B2

公开(公告)日：2022-08-30

申请号：US17027052

申请日：2020-09-21

Applicant: ASIAN POWER DEVICES INC.

Inventor： Yeu-Torng Yau ,  Tsung-Liang Hung

IPC: H02M3/155 ,  H02M1/00 ,  G01R19/00

Abstract: A hysteresis voltage detection circuit includes a voltage stabilizing unit, a first power switch, a first voltage dividing resister, a second voltage dividing resister, a third voltage dividing resistor and a second power switch. The voltage stabilizing unit is coupled to an adjustable voltage source. When both the first power switch and the second power switch are turned on, the first voltage dividing resistor, the second voltage dividing resistor, and the third voltage dividing resistor divide the adjustable voltage source. When both the first power switch and the second power switch are turned off, the first voltage dividing resistor and the second voltage dividing resistor divide the adjustable voltage source.

公开(公告)号：US11095207B1

公开(公告)日：2021-08-17

申请号：US16859147

申请日：2020-04-27

Applicant: ASIAN POWER DEVICES INC.

Inventor： Yeu-Torng Yau ,  Tsung-Liang Hung

IPC: H02M1/42 ,  H02M1/00 ,  H02M3/157 ,  H02M7/06

Abstract: A power factor correction circuit with burst setting includes a conversion circuit, a control unit, and a burst setting circuit. The burst setting circuit respectively sets at least one burst period when an input power source is at a rising edge of a positive half cycle, a falling edge of the positive half cycle, the rising edge of a negative half cycle, and the falling edge of the negative half cycle, and provides a burst setting signal corresponding to the at least one burst period to the control unit so that the control unit limits the conversion circuit to perform a burst operation during the at least one burst period.

公开(公告)号：US09647451B2

公开(公告)日：2017-05-09

申请号：US14802822

申请日：2015-07-17

Applicant: ASIAN POWER DEVICES INC.

Inventor： Chih-Yuan Hsu

IPC: H02H3/20 ,  H02H9/04 ,  H02M1/32

CPC classification number: H02H9/041 ,  H02M2001/322

Abstract: A discharge circuit includes a discharge switch trigger unit, a discharge switch unit and a discharge resistor unit. The discharge switch unit is coupled connected to the discharge switch trigger unit. The discharge resistor unit is coupled connected to the discharge switch unit. The discharge switch trigger unit and the discharge resistor unit are coupled connected to a voltage output side. When the output voltage of a power supply reaches a predetermined rated limitation, an over voltage protection circuit is activated, and the discharge switch unit is turned on by the discharge switch trigger unit, then the output voltage starts to decrease through the discharge resistor unit.

公开(公告)号：US09537276B1

公开(公告)日：2017-01-03

申请号：US15163690

申请日：2016-05-25

Applicant: ASIAN POWER DEVICES INC.

Inventor： Chengxing Cai ,  Weiting Deng

IPC: H01R29/00 ,  H01R31/06 ,  H01R13/627 ,  H01R27/00 ,  H01R24/66

CPC classification number: H01R31/06 ,  H01R24/66 ,  H01R27/00

Abstract: A power adapter with replaceable plug structure includes a plug and a housing. The plug includes a contact point. The housing includes an assembly member configured for detachably engaging the plug. The housing includes a left cover, a right cover and an assembly plate. When the left cover and the right cover are assembled, the assembly plate is disposed between the left cover and the right cover. One or more slots are disposed on the assembly plate to form a resilient area. The resilient area includes an electrical conductor. The electrical conductor is in contact with the contact point when the plug is assembled onto the housing.

Abstract translation: 具有可替换插头结构的电源适配器包括插头和外壳。 插头包括一个接触点。 壳体包括构造成可拆卸地接合插头的组件构件。 壳体包括左盖，右盖和组装板。 组装左盖和右盖时，组装板位于左盖和右盖之间。 一个或多个狭槽设置在组装板上以形成弹性区域。 弹性区域包括电导体。 当插头组装到外壳上时，电导体与接触点接触。

公开(公告)号：US07675240B2

公开(公告)日：2010-03-09

申请号：US12001724

申请日：2007-12-12

Applicant: Cheng-Chang Yang ,  Guang-Ming Lei ,  Yu-Chi Lai

Inventor： Cheng-Chang Yang ,  Guang-Ming Lei ,  Yu-Chi Lai

IPC: H05B41/00

CPC classification number: H05B33/0827 ,  H05B33/0815

Abstract: A light emitting diode (LED) circuit having even current has multiple LED strings, a current equalizing integrated circuit (IC) and a voltage compensation module. The LED strings are connected to an external power source, and each LED string has a power terminal and a driving terminal. The current equalizing IC has multiple driving pins connected respectively to the driving terminals of the LED strings. The voltage compensation module is connected between the LED strings and the external power source and has a threshold voltage value and multiple input terminals. The input terminals are connected respectively to the driving pins of the current equalizing IC to allow the voltage compensation module rise and send the voltage obtained from the external power source to the LED strings when the voltage compensation module determines any voltage on the driving pins of the current equalizing IC is lower than the threshold voltage value.

Abstract translation: 具有均匀电流的发光二极管（LED）电路具有多个LED串，电流均衡集成电路（IC）和电压补偿模块。 LED串连接到外部电源，每个LED串具有电源端子和驱动端子。 电流均衡IC具有分别连接到LED串的驱动端子的多个驱动引脚。 电压补偿模块连接在LED串和外部电源之间，并具有阈值电压值和多个输入端子。 输入端子分别连接到电流均衡IC的驱动引脚，以允许电压补偿模块上升并将从外部电源获得的电压发送到LED串，当电压补偿模块确定驱动引脚上的任何电压时 电流均衡IC低于阈值电压值。

公开(公告)号：US20010035744A1

公开(公告)日：2001-11-01

申请号：US09855464

申请日：2001-05-15

Applicant: Asian Power Devices Inc.

Inventor： Chun-Hsiung Chen

IPC: G05F001/40

CPC classification number: H02M1/4225 ,  G05F1/70 ,  Y02B70/126

Abstract: An improved control device for power factor corrections contains a voltage-raising circuit, a pulse width modulator to control the conduction of the voltage-raising circuit and an AC reference voltage circuit to control the output of the voltage-raising circuit. The AC reference voltage circuit consists of an error amplifier and a comparator connecting to an output port of the error amplifier. The voltage-raising circuit outputs a voltage to the error amplifier. The output port of the comparator connects to the output port of a full-wave rectifier through a set of voltage dividers and capacitor. Therefore, the output voltage of the AC reference voltage circuit conforms to the input voltage of the voltage-raising circuit, achieving the objective of correcting the power factor.

Abstract translation: 用于功率因数校正的改进的控制装置包括升压电路，用于控制升压电路的导通的脉宽调制器和用于控制升压电路的输出的AC参考电压电路。 交流参考电压电路由误差放大器和连接到误差放大器的输出端口的比较器组成。 升压电路向误差放大器输出电压。 比较器的输出端口通过一组分压器和电容器连接到全波整流器的输出端口。 因此，交流参考电压电路的输出电压符合升压电路的输入电压，达到校正功率因数的目的。