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：US08258807B2

公开(公告)日：2012-09-04

申请号：US12722785

申请日：2010-03-12

Applicant: Yong-Jun Song ,  Yong-Zhao Huang

Inventor： Yong-Jun Song ,  Yong-Zhao Huang

IPC: G01R31/28 ,  G01R31/02

CPC classification number: G06F11/24

Abstract: A computer system on/off test apparatus includes a parameter setting and test control circuit, a test indicating circuit, a voltage converting circuit, and an on/off signal switch circuit. The parameter setting and test control circuit includes a micro control unit (MCU) to set a number of test times and control an on/off test of a motherboard. The test indicating circuit is operable to display the number set by the parameter setting and test control circuit, and display a successful number of test times of the on/off test. The voltage converting circuit is operable to convert a first voltage received from a first standby power connector to a second voltage. The on/off signal switch circuit is operable to switch the first and second voltages according the control by the MCU.

Abstract translation: 计算机系统开/关测试装置包括参数设置和测试控制电路，测试指示电路，电压转换电路和开/关信号开关电路。 参数设置和测试控制电路包括一个微控制单元（MCU），用于设置多个测试时间并控制主板的开/关测试。 测试指示电路可操作以显示由参数设置和测试控制电路设置的数字，并且显示成功的开/关测试的测试次数。 电压转换电路可操作以将从第一备用电源连接器接收的第一电压转换为第二电压。 开/关信号切换电路可以根据MCU的控制来切换第一和第二电压。

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：US20120194117A1

公开(公告)日：2012-08-02

申请号：US13442881

申请日：2012-04-10

Applicant: YONG-ZHAO HUANG

Inventor： YONG-ZHAO HUANG

IPC: G05D23/24

CPC classification number: F04D27/004

Abstract: A fan control system includes a temperature detecting circuit and a rotation rate control circuit. The detecting circuit includes a first amplifier, a second amplifier, and a thermistor. The rotation rate control circuit includes a first terminal, a second terminal, and a third terminal. The detecting circuit detects temperature and outputs a voltage signal. The rotation rate control circuit receives the voltage signal and controls the rotation rate of the fan according to the voltage signal.

Abstract translation: 风扇控制系统包括温度检测电路和旋转速率控制电路。 检测电路包括第一放大器，第二放大器和热敏电阻。 旋转速率控制电路包括第一端子，第二端子和第三端子。 检测电路检测温度并输出电压信号。 旋转速度控制电路接收电压信号并根据电压信号控制风扇的转速。

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：US20120068652A1

公开(公告)日：2012-03-22

申请号：US13010789

申请日：2011-01-21

Applicant: YONG-ZHAO HUANG

Inventor： YONG-ZHAO HUANG

IPC: H02P7/00

CPC classification number: F04D27/004

Abstract: A fan drive circuit for driving a fan used in an electronic device to rotate includes a heat detector, a control unit, an integrating circuit, a regulating circuit; and a power supply. The power supply cooperates with the regulating circuit to drive the fan to rotate, the control unit detects the temperature of the one or more components of the electronic device using the heat detector and cooperates with the integrating circuit to generate a speed control voltage that changes with change of the temperature, and the speed control voltage is input to the regulating circuit to regulate a rotation rate of the fan.

Abstract translation: 用于驱动用于电子设备旋转的风扇的风扇驱动电路包括热检测器，控制单元，积分电路，调节电路; 和电源。 电源与调节电路配合驱动风扇旋转，控制单元使用热检测器检测电子设备的一个或多个部件的温度，并与积分电路配合，产生速度控制电压， 温度的变化，速度控制电压被输入到调节电路，以调节风扇的转速。

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：US20110241894A1

公开(公告)日：2011-10-06

申请号：US12818120

申请日：2010-06-17

Applicant: YONG-ZHAO HUANG

Inventor： YONG-ZHAO HUANG

IPC: G08B21/00

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：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