公开(公告)号：US08502418B2

公开(公告)日：2013-08-06

申请号：US12981483

申请日：2010-12-30

Applicant: Yong-Zhao Huang

Inventor： Yong-Zhao Huang

IPC: H02J1/00

CPC classification number: H03K19/0008 ,  Y10T307/724 ,  Y10T307/826

Abstract: An auto-shut off circuit includes a relay, a voltage conversion device, a first diode, a second diode, a third diode, a capacitor, a first transistor, and a second transistor. The relay includes a coil and a switch. The auto-shut off circuit disconnects an electronic device from a power supply when the electronic device is not at a working state.

Abstract translation: 自动关闭电路包括继电器，电压转换装置，第一二极管，第二二极管，第三二极管，电容器，第一晶体管和第二晶体管。 继电器包括线圈和开关。 当电子设备不处于工作状态时，自动关闭电路将电子设备与电源断开。

公开(公告)号：US08339087B2

公开(公告)日：2012-12-25

申请号：US12644017

申请日：2009-12-22

Applicant: Yong-Zhao Huang

Inventor： Yong-Zhao Huang

IPC: H02P4/00 ,  H02K9/06 ,  G05D23/24

CPC classification number: F04D27/004 ,  G06F1/206

Abstract: A fan control circuit includes an integrated circuit (IC), a thermistor, and a transistor. A first input of the IC is connected to a fan power supply. A second input of the IC is connected to a stand-by power supply. A base of the transistor is grounded through the thermistor. An emitter of the transistor is connected to an output of the IC. A collector of the transistor is connected to a fan.

Abstract translation: 风扇控制电路包括集成电路（IC），热敏电阻和晶体管。 IC的第一输入端连接到风扇电源。 IC的第二输入端连接到待机电源。 晶体管的基极通过热敏电阻接地。 晶体管的发射极连接到IC的输出端。 晶体管的集电极连接到风扇。

公开(公告)号：US08258971B2

公开(公告)日：2012-09-04

申请号：US12818120

申请日：2010-06-17

Applicant: Yong-Zhao Huang

Inventor： Yong-Zhao Huang

IPC: G08B21/00 ,  H02H3/24

CPC classification number: G01R19/165

Abstract: A low voltage warning circuit includes an input terminal configured to receive a supply voltage, a reference voltage connected to the input terminal for providing a reference voltage, a transistor connected to the reference voltage circuit and the input terminal, and a silicon controlled rectifier connected to the transistor and the input terminal via a indicating device, the low voltage warning circuit raise a warning through the indicating device when the supply voltage is below the reference voltage.

Abstract translation: 低电压警告电路包括：被配置为接收电源电压的输入端子，连接到用于提供参考电压的输入端子的参考电压;连接到参考电压电路和输入端子的晶体管，以及连接到 晶体管和输入端经由指示装置，当电源电压低于参考电压时，低压警告电路通过指示装置引起警告。

公开(公告)号：US08254068B2

公开(公告)日：2012-08-28

申请号：US12862765

申请日：2010-08-25

Applicant: Yong-Zhao Huang

Inventor： Yong-Zhao Huang

IPC: H02H3/20 ,  H02H9/04 ,  H02H3/08 ,  H02H9/02

CPC classification number: G05F1/569

Abstract: A regulating system includes an input port having a first input terminal and a second input terminal, an output port having a first output terminal and a second output terminal, a regulating circuit, an over-current protection circuit, and an overvoltage protection circuit. The overvoltage protection circuit includes a regulating diode, a first bipolar transistor and a second bipolar transistor. The first output terminal is connected to the base of the first bipolar transistor via the regulating diode and grounded via first bipolar transistor. A base of the second bipolar transistor connects to the collector of the first bipolar transistor. The second output terminal is grounded via the second transistor. When an output voltage of the first output terminal increases over a predetermined voltage, an electrical connection between the second output terminal and ground is cut off to stop providing output voltage from the output port.

Abstract translation: 调节系统包括具有第一输入端子和第二输入端子的输入端口，具有第一输出端子和第二输出端子的输出端口，调节电路，过电流保护电路和过电压保护电路。 过电压保护电路包括调节二极管，第一双极晶体管和第二双极晶体管。 第一输出端子经由调节二极管连接到第一双极晶体管的基极，并通过第一双极晶体管接地。 第二双极晶体管的基极连接到第一双极晶体管的集电极。 第二输出端通过第二晶体管接地。 当第一输出端子的输出电压超过预定电压时，第二输出端子与地之间的电连接被切断以停止从输出端口提供输出电压。

公开(公告)号：US08248015B2

公开(公告)日：2012-08-21

申请号：US12613468

申请日：2009-11-05

Applicant: Yong-Zhao Huang

Inventor： Yong-Zhao Huang

IPC: G05B5/00

CPC classification number: F04D27/004 ,  G01K13/00

Abstract: A circuit for controlling a rotation speed of a fan of an electronic device according to a temperature of the electronic device. The circuit senses the temperature of the electronic device, and outputs a voltage changing with the sensed temperature. The rotation speed of the fan changes with the voltage. The circuit slows the rotation speed of the fan down when the sensed temperature of the electronic device is decreased.

Abstract translation: 一种用于根据电子设备的温度来控制电子设备的风扇的转速的电路。 该电路感测电子设备的温度，并输出随感测温度变化的电压。 风扇转速随电压而变化。 当电子设备的感测温度降低时，电路会降低风扇的转速。

公开(公告)号：US08149563B2

公开(公告)日：2012-04-03

申请号：US12560447

申请日：2009-09-16

Applicant: Yong-Zhao Huang

Inventor： Yong-Zhao Huang

IPC: F23Q3/00

CPC classification number: F23Q3/004

Abstract: An ignition circuit includes a system power supply, an ignition coil, a delay unit, a first switch unit, and a second switch unit. When the system power supply is powered on, the second switch unit is turned on, the ignition coil is powered on. After a delay time, the delay unit controls the first switch unit to be turned on, the second switch unit is turned off, the ignition coil is powered off. Therefore an ignition operation is accomplished.

Abstract translation: 点火电路包括系统电源，点火线圈，延迟单元，第一开关单元和第二开关单元。 当系统电源通电时，第二开关单元接通，点火线圈通电。 在延迟时间之后，延迟单元控制第一开关单元导通，第二开关单元断开，点火线圈断电。 因此，可实现点火操作。

公开(公告)号：US08089264B2

公开(公告)日：2012-01-03

申请号：US12564058

申请日：2009-09-22

Applicant: Yong-Zhao Huang

Inventor： Yong-Zhao Huang

IPC: G01R19/00 ,  H02H3/20 ,  H02H3/24 ,  H02H9/04

CPC classification number: G01R19/16523 ,  G01R19/16552

Abstract: A voltage measuring circuit includes an under-voltage measuring circuit and an over-voltage measuring circuit. The under-voltage measuring circuit includes a first voltage comparator, a first zener diode, and a first light emitting diode. An inverting input of the first voltage comparator is connected to a cathode of the first zener diode. An output of the first voltage comparator is connected to a cathode of the first light emitting diode. The over-voltage measuring circuit includes a second voltage comparator, a second zener diode, and a second light emitting diode. A non-inverting input of the second voltage comparator is connected to the cathode of the second zener diode. An output of the second voltage comparator is connected to a cathode of the second light emitting diode.

Abstract translation: 电压测量电路包括欠压测量电路和过电压测量电路。 欠压测量电路包括第一电压比较器，第一齐纳二极管和第一发光二极管。 第一电压比较器的反相输入端连接到第一齐纳二极管的阴极。 第一电压比较器的输出端连接到第一发光二极管的阴极。 过电压测量电路包括第二电压比较器，第二齐纳二极管和第二发光二极管。 第二电压比较器的非反相输入端连接到第二齐纳二极管的阴极。 第二电压比较器的输出端连接到第二发光二极管的阴极。

公开(公告)号：US20110235220A1

公开(公告)日：2011-09-29

申请号：US12862765

申请日：2010-08-25

Applicant: Yong-Zhao Huang

Inventor： Yong-Zhao Huang

IPC: H02H9/04 ,  H02H9/02

CPC classification number: G05F1/569

Abstract: A regulating system includes an input port having a first input terminal and a second input terminal, an output port having a first output terminal and a second output terminal, a regulating circuit, an over-current protection circuit, and an overvoltage protection circuit. The overvoltage protection circuit includes a regulating diode, a first bipolar transistor and a second bipolar transistor. The first output terminal is connected to the base of the first bipolar transistor via the regulating diode and grounded via first bipolar transistor. A base of the second bipolar transistor connects to the collector of the first bipolar transistor. The second output terminal is grounded via the second transistor. When an output voltage of the first output terminal increases over a predetermined voltage, an electrical connection between the second output terminal and ground is cut off to stop providing output voltage from the output port

Abstract translation: 调节系统包括具有第一输入端子和第二输入端子的输入端口，具有第一输出端子和第二输出端子的输出端口，调节电路，过电流保护电路和过电压保护电路。 过电压保护电路包括调节二极管，第一双极晶体管和第二双极晶体管。 第一输出端子经由调节二极管连接到第一双极晶体管的基极，并通过第一双极晶体管接地。 第二双极晶体管的基极连接到第一双极晶体管的集电极。 第二输出端通过第二晶体管接地。 当第一输出端子的输出电压增加超过预定电压时，第二输出端子和地之间的电连接被切断以停止从输出端口提供输出电压

公开(公告)号：US07796459B2

公开(公告)日：2010-09-14

申请号：US12057377

申请日：2008-03-28

Applicant: Ning Wang ,  Cheng Qian ,  Yong-Zhao Huang

Inventor： Ning Wang ,  Cheng Qian ,  Yong-Zhao Huang

IPC: G11C5/14 ,  G06F1/00

CPC classification number: G11C5/147 ,  G11C11/4072 ,  G11C11/4074

Abstract: A memory voltage control circuit includes two slots, a control circuit, a voltage conversion circuit, and a switch circuit. The two slots are able to efficiently process different memory types. The control circuit receives memory identification signals from the two slots. The control circuit administers the output voltage of the voltage conversion circuit according to the memory identification signals. The memory identification signals determine whether the switch circuit is to be turned on or off. This will control whether the output voltage of the voltage conversion circuit will go to the first or the second slot.

Abstract translation: 存储器电压控制电路包括两个时隙，一个控制电路，一个电压转换电路和一个开关电路。 这两个插槽能够有效地处理不同的内存类型。 控制电路从两个时隙接收存储器识别信号。 控制电路根据存储器识别信号来管理电压转换电路的输出电压。 存储器识别信号确定开关电路是打开还是关闭。 这将控制电压转换电路的输出电压是否将进入第一或第二时隙。

公开(公告)号：US07576600B2

公开(公告)日：2009-08-18

申请号：US11300699

申请日：2005-12-15

Applicant: Wu Jiang ,  Yong-Zhao Huang ,  Yun Li

Inventor： Wu Jiang ,  Yong-Zhao Huang ,  Yun Li

IPC: H02J1/00 ,  H03K17/00 ,  H01H67/00

CPC classification number: G06F1/3203 ,  G06F1/263 ,  Y10T307/696

Abstract: A supply voltage switching circuit for a computer includes a chipset, a first transistor and a second transistor. The chipset includes a first MOSFET and a second MOSFET. A 5V system voltage and a 5V standby voltage are respectively inputted to sources of the first MOSFET and the second MOSFET. Gates of the first MOSFET and the second MOSFET are respectively coupled to collectors of the first transistor and the second transistor. Emitters of the first transistor and the second transistor are coupled to a first terminal for receiving a control signal. A 1.8V standby voltage is separately inputted to bases of the first transistor and the second transistor. A 12V system voltage and the 5V standby voltage are respectively inputted to collectors of the first transistor and the second transistor. A second terminal is connected between the drain of the first MOSFET and the drain of the second MOSFET.

Abstract translation: 一种用于计算机的电源电压切换电路包括芯片组，第一晶体管和第二晶体管。 该芯片组包括第一MOSFET和第二MOSFET。 5V系统电压和5V待机电压分别输入到第一MOSFET和第二MOSFET的源极。 第一MOSFET和第二MOSFET的栅极分别耦合到第一晶体管和第二晶体管的集电极。 第一晶体管和第二晶体管的发射极耦合到用于接收控制信号的第一端子。 1.8V待机电压分别输入到第一晶体管和第二晶体管的基极。 12V系统电压和5V待机电压分别输入到第一晶体管和第二晶体管的集电极。 第二端子连接在第一MOSFET的漏极和第二MOSFET的漏极之间。