-
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
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
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：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。
-
公开(公告)号：US20220069730A1
公开(公告)日：2022-03-03
申请号：US17125376
申请日：2020-12-17
Applicant: ASIAN POWER DEVICES INC.
Inventor： Yeu-Torng YAU , Tsung-Liang HUNG
Abstract: A network communication power supply with digital signal isolation includes a transformer, a transformer drive circuit, a rectifier, and a modulation signal duty cycle detection circuit. The transformer has a primary side and a secondary side. The transformer drive circuit is coupled to the primary side, and receives a digital signal input. The transformer drive circuit converts the digital signal input into a drive signal with a duty cycle corresponding to a logic level of the digital signal input according to the logic level. The digital signal input includes a power content. The rectifier is coupled to the secondary side and converts the power content to provide a power source. The modulation signal duty cycle detection circuit is coupled to the rectifier and supplied power by the power source, and provides a digital signal output with a high or low level according to the duty cycle.
-
公开(公告)号：US11056970B1
公开(公告)日：2021-07-06
申请号：US16821681
申请日：2020-03-17
Applicant: ASIAN POWER DEVICES INC.
Inventor： Yeu-Torng Yau , Tsung-Liang Hung
Abstract: A bridgeless step-up and step-down AC-to-DC converter is used to convert an AC input power source into a DC output power source. The converter includes a first circuit, a second circuit, a third circuit, a third diode, and a fourth diode. The first circuit has a first end, a second send, and a third end; the first end is coupled to the AC input power source, the second end is coupled to a ground end, and the third end is coupled to the DC output power source. The second circuit has a first end, a second end, and a third end; the first end is coupled to the AC input power source, the second end is coupled to the ground end, and the third end is coupled to the DC output power source.
-
Patent Agency Ranking
公开(公告)号：US10886907B1
公开(公告)日：2021-01-05
申请号：US16717371
申请日：2019-12-17
Applicant: ASIAN POWER DEVICES INC.
Inventor： Yeu-Torng Yau , Tsung-Liang Hung
Abstract: A method of controlling a resolution of digital pulse width modulation is applied to a digital pulse width modulation generator. The method is to divide a value of a first duty clock by a value of a first pulse width modulation period clock to generate a first resolution. And then, if it is confirmed that a modulation command has been received, a second resolution is generated, and if it is confirmed that the modulation command is not received, a third resolution is generated. The second resolution is greater than the first resolution, and the second resolution is less than the third resolution.
-
公开(公告)号：US10270351B1
公开(公告)日：2019-04-23
申请号：US15920891
申请日：2018-03-14
Applicant: ASIAN POWER DEVICES INC.
Inventor： Kai-Yuan Shi , Hai-Ping Ding
IPC: H02M3/335
Abstract: An EMI-radiation suppression circuit is applied to a power converter having a main power switch. The EMI-radiation suppression circuit includes a control unit, a drive selection unit, and a switch unit. The drive selection unit is coupled between the control unit and the main power switch, and which provides at least two drive terminals. One drive terminal is coupled to the control unit and another drive terminal is coupled to the main power switch. The switch unit is coupled between one of the at least two drive terminals and a ground to receive a feedback control signal. When the feedback control signal activates the switch unit, the ground is coupled to the drive terminal to which the switch unit is coupled. Grounding the gate terminal suppresses the EMI and maintains operational efficiency of the power converter.
-
公开(公告)号：US09954457B2
公开(公告)日：2018-04-24
申请号：US15683508
申请日：2017-08-22
Applicant: ASIAN POWER DEVICES INC.
Inventor： Chih-Yuan Hsu
CPC classification number: H02M3/3385 , H02M1/32 , H02M3/156 , H02M3/1588 , H02M3/33523 , H02M7/217
Abstract: An overvoltage protection circuit adapted for a switching power supply is provided. The overvoltage protection circuit can use the time difference of the start of the overvoltage protection to distinguish that the overvoltage of the output voltage of the switching power supply is caused by the failure of the internal feedback or by the internal power supply, thereby avoiding a short and harmless external power supply to affect the normal operation of the switching power supply but can immediately stop the switching power supply to achieve protection when the switching power supply has an internal feedback failure.
-
公开(公告)号：US20180069477A1
公开(公告)日：2018-03-08
申请号：US15683508
申请日：2017-08-22
Applicant: ASIAN POWER DEVICES INC.
Inventor： CHIH-YUAN HSU
CPC classification number: H02M3/3385 , H02M1/32 , H02M3/156 , H02M3/1588 , H02M3/33523 , H02M7/217
Abstract: An overvoltage protection circuit adapted for a switching power supply is provided. The overvoltage protection circuit can use the time difference of the start of the overvoltage protection to distinguish that the overvoltage of the output voltage of the switching power supply is caused by the failure of the internal feedback or by the internal power supply, thereby avoiding a short and harmless external power supply to affect the normal operation of the switching power supply but can immediately stop the switching power supply to achieve protection when the switching power supply has an internal feedback failure.
-
公开(公告)号：US20170364116A1
公开(公告)日：2017-12-21
申请号：US15345516
申请日：2016-11-08
Applicant: ASIAN POWER DEVICES INC.
Inventor： TSUNG-LIANG HUNG , YEU-TORNG YAU , PING-HSUN CHU
IPC: G05F3/16
CPC classification number: G05F3/16
Abstract: A discharge circuit for a diode reverse leakage current includes an input positive terminal, an input negative terminal, an output positive terminal coupled to the input positive terminal, an output negative terminal coupled to the input negative terminal, a diode and a current source device. The diode has an anode terminal coupled to the input positive terminal and a cathode terminal coupled to the output positive terminal. The current source device has a first end coupled to the anode terminal of the diode and a second end coupled between the input and output negative terminals. The voltage difference across the current source device is reduced by less than about 1 V when input voltage is switched off. The current source device continues to operate when the input voltage is normal. As P=VI, the loss is proportional to the input voltage, therefore achieving the objective of low loss.
-
-
-
-
-
-
-
-
-
Search Results
57
records
(took 0.015 seconds)
