公开(公告)号：US08248016B2

公开(公告)日：2012-08-21

申请号：US12760445

申请日：2010-04-14

Applicant: Yong-Zhao Huang

Inventor： Yong-Zhao Huang

IPC: H02P7/29

CPC classification number: F04D27/004 ,  H02P7/29 ,  H02P29/68

Abstract: A fan circuit controls a speed of a fan. A control chip outputs a pulse width modulation (PWM) signal that changes with the temperature of an electronic device that the fan is mounted in. An input circuit converts the PWM signal into a continual voltage signal. An amplifier circuit amplifies the voltage signal and outputs a control signal. When the control signal is less than a threshold voltage, the control circuit is turned on and the fan receives current which is less than preset current. When the control signal is greater than the threshold voltage, the control circuit is turned off and the fan receives current which is greater than the preset current.

Abstract translation: 风扇电路控制风扇的速度。 控制芯片输出随着安装风扇的电子设备的温度而变化的脉宽调制（PWM）信号。输入电路将PWM信号转换为连续电压信号。 放大器电路放大电压信号并输出​​控制信号。 当控制信号小于阈值电压时，控制电路接通，风扇接收小于预设电流的电流。 当控制信号大于阈值电压时，控制电路关闭，风扇接收大于预设电流的电流。

公开(公告)号：US20120161972A1

公开(公告)日：2012-06-28

申请号：US13012825

申请日：2011-01-25

Applicant: YONG-ZHAO HUANG

Inventor： YONG-ZHAO HUANG

IPC: G08B17/00 ,  G01K1/00

CPC classification number: G01K7/16

Abstract: A temperature monitoring circuit includes a negative temperature coefficient (NTC) resistor, a zener diode, an alarm, a silicon controlled rectifier. A first terminal of the NTC resistor is connected to a power supply through a first resistor. A second terminal of the NTC resistor is grounded. A cathode of the zener diode is connected to a node between the NTC resistor and the first resistor. An anode is grounded through a second resistor. A first terminal of the alarm is connected to the cathode of the zener diode, and is grounded through a third and fourth resistors in series. A cathode of the silicon controlled rectifier is connected to the anode of the zener diode. An anode of the silicon controlled rectifier is connected to a second terminal of the alarm. A control terminal of the silicon controlled rectifier is connected to a node between the third and fourth resistors.

Abstract translation: 温度监控电路包括负温度系数（NTC）电阻，齐纳二极管，报警器，可控硅整流器。 NTC电阻器的第一端子通过第一电阻器连接到电源。 NTC电阻的第二个端子接地。 齐纳二极管的阴极连接到NTC电阻和第一个电阻之间的节点。 阳极通过第二电阻器接地。 报警器的第一个端子连接到齐纳二极管的阴极，并通过串联的第三和第四电阻器接地。 可控硅整流器的阴极连接到齐纳二极管的阳极。 可控硅整流器的阳极连接到报警器的第二端。 可控硅整流器的控制端子连接到第三和第四电阻器之间的节点。

公开(公告)号：US20120139526A1

公开(公告)日：2012-06-07

申请号：US12970963

申请日：2010-12-17

Applicant: YONG-ZHAO HUANG

Inventor： YONG-ZHAO HUANG

IPC: G01R19/00 ,  G01R31/40

CPC classification number: G01R19/16542 ,  G01R19/16523

Abstract: A voltage detection circuit used to detect a voltage source includes a Zener diode, a thyristor, a first resistor, a second resistor, a first light-emitting diode (LED), and a second LED. A cathode of the Zener diode is connected to the voltage source. An anode of the Zener diode is connected to a control terminal of the thyristor through a first resistor. An anode of the thyristor is connected to the voltage source through a second resistor. The anode of the thyristor is connected to an anode of the first LED. A cathode of the thyristor is connected to a cathode of the first LED. The cathode of the thyristor is connected to an anode of the second LED, and a cathode of the second LED is grounded.

Abstract translation: 用于检测电压源的电压检测电路包括齐纳二极管，晶闸管，第一电阻器，第二电阻器，第一发光二极管（LED）和第二LED。 齐纳二极管的阴极连接到电压源。 齐纳二极管的阳极通过第一电阻连接到晶闸管的控制端。 晶闸管的阳极通过第二电阻器连接到电压源。 晶闸管的阳极连接到第一LED的阳极。 晶闸管的阴极连接到第一LED的阴极。 晶闸管的阴极连接到第二LED的阳极，第二LED的阴极接地。

公开(公告)号：US08093850B2

公开(公告)日：2012-01-10

申请号：US12580264

申请日：2009-10-16

Applicant: Yong-Zhao Huang

Inventor： Yong-Zhao Huang

IPC: G05D23/20

CPC classification number: F04D29/582 ,  F04D27/004 ,  H02P7/29 ,  H02P29/60

Abstract: A fan control system includes a linear adjustor, an input/output controller, and a temperature sensor. A first terminal of the linear adjustor is connected to a first power supply. A second terminal of the linear adjustor is connected to a fan and grounded via a first resistor and a second resistor in series. A third terminal of the linear adjustor is connected to a node between the first resistor and the second resistor. A first terminal of the input/output controller is connected to the third terminal of the linear adjustor via a third resistor. A second terminal of the input/output controller is connected to the temperature sensor.

Abstract translation: 风扇控制系统包括线性调节器，输入/输出控制器和温度传感器。 线性调节器的第一端子连接到第一电源。 线性调节器的第二端子连接到风扇并经由第一电阻器和第二电阻器串联接地。 线性调节器的第三端子连接到第一电阻器和第二电阻器之间的节点。 输入/输出控制器的第一端经由第三电阻器连接到线性调节器的第三端。 输入/输出控制器的第二个端子连接到温度传感器。

公开(公告)号：US08079115B2

公开(公告)日：2011-12-20

申请号：US12334650

申请日：2008-12-15

Applicant: Yu Zhang ,  Guo-Zhao Huang

Inventor： Yu Zhang ,  Guo-Zhao Huang

IPC: E05D11/10

CPC classification number: H04M1/0216 ,  Y10T16/5387 ,  Y10T16/53988 ,  Y10T16/540243 ,  Y10T16/540247 ,  Y10T16/54025

Abstract: A hinge assembly (100) includes a cam (13), a follower (14), a first spring (12), a press rod (17), a control member (18) and a second spring (16). The cam has a cam surface. The follower has a latching cam surface engaging with the cam surface. The first spring provides an elastic force causing the cam surface of the cam and the latching cam surface of the follower to abut each other. The press rod includes a threaded portion (173). The control member threadedly engages with the threaded portion of the press rod. The second spring provides an elastic force to return the control member. When the press rod is pushed, the control member rotates to cause the follower to rotate whereby the cam surface of the cam rotates relative to the latching cam surface of the follower.

Abstract translation: 铰链组件（100）包括凸轮（13），从动件（14），第一弹簧（12），压杆（17），控制构件（18）和第二弹簧（16）。 凸轮具有凸轮表面。 从动件具有与凸轮表面接合的闭锁凸轮表面。 第一弹簧提供使凸轮的凸轮表面和从动件的闩锁凸轮表面彼此邻接的弹性力。 压杆包括螺纹部分（173）。 控制构件与压杆的螺纹部分螺纹接合。 第二弹簧提供弹性力以使控制构件返回。 当按压推杆时，控制构件旋转以使从动件旋转，由此凸轮的凸轮表面相对于从动件的闭锁凸轮表面旋转。

公开(公告)号：US08072342B2

公开(公告)日：2011-12-06

申请号：US12560448

申请日：2009-09-16

Applicant: Yong-Zhao Huang

Inventor： Yong-Zhao Huang

IPC: G08B21/00

CPC classification number: H02H3/08

Abstract: An overcurrent protection circuit connected between a voltage input and a voltage output of an electronic device to protect against excessive current is disclosed. The overcurrent protection circuit includes first to fifth resistors, a relay comprising a coil and a normally closed switch, a pnp transistor, and a break-over element. When a current between the voltage input and the voltage output is greater or equal to a rated current of the electronic device, the npn transistor is turned on, while the coil is powered on to control the switch to be opened, therefore the voltage output cannot output voltage, which can protect against excessive current damaging the electronic device.

Abstract translation: 公开了一种过电流保护电路，其连接在电子设备的电压输入和电压输出之间以防止过大的电流。 过电流保护电路包括第一至第五电阻器，包括线圈和常闭开关的继电器，pnp晶体管和断路元件。 当电压输入和电压输出之间的电流大于或等于电子设备的额定电流时，npn晶体管导通，而线圈通电以控制开关打开，因此电压输出不能 输出电压，可以防止电流过大损坏电子设备。

公开(公告)号：US20110101903A1

公开(公告)日：2011-05-05

申请号：US12646873

申请日：2009-12-23

Applicant: YONG-ZHAO HUANG

Inventor： YONG-ZHAO HUANG

IPC: G05D23/00

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 an amplifier and a thermal diode. The detecting circuit detects temperature and outputs a voltage signal. The 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。 检测电路包括放大器和热二极管。 检测电路检测温度并输出电压信号。 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：US20110069423A1

公开(公告)日：2011-03-24

申请号：US12630857

申请日：2009-12-04

Applicant: YONG-ZHAO HUANG

Inventor： YONG-ZHAO HUANG

IPC: H02H3/00

CPC classification number: H02H3/087

Abstract: A protection circuit includes a switch and a transistor. A first end of the switch is connected to a power source. A second end of the switch is connected to an electronic device via a first resistor. A third end of the switch is connected to the power source via a second resistor. A base of the transistor is connected to the second of the transistor via a third resistor, and grounded via a fourth resistor. A collector of the transistor is connected to the power source. An emitter of the transistor is connected to the electronic device.

Abstract translation: 保护电路包括开关和晶体管。 开关的第一端连接到电源。 开关的第二端经由第一电阻器连接到电子设备。 开关的第三端经由第二电阻器连接到电源。 晶体管的基极经由第三电阻器连接到晶体管的第二电阻器，并通过第四电阻器接地。 晶体管的集电极连接到电源。 晶体管的发射极连接到电子设备。

公开(公告)号：US20110068726A1

公开(公告)日：2011-03-24

申请号：US12580264

申请日：2009-10-16

Applicant: YONG-ZHAO HUANG

Inventor： YONG-ZHAO HUANG

IPC: G05D23/20

CPC classification number: F04D29/582 ,  F04D27/004 ,  H02P7/29 ,  H02P29/60

Abstract: A fan control system includes a linear adjustor, an input/output controller, and a temperature sensor. A first terminal of the linear adjustor is connected to a first power supply. A second terminal of the linear adjustor is connected to a fan and grounded via a first resistor and a second resistor in series. A third terminal of the linear adjustor is connected to a node between the first resistor and the second resistor. A first terminal of the input/output controller is connected to the third terminal of the linear adjustor via a third resistor. A second terminal of the input/output controller is connected to the temperature sensor.

Abstract translation: 风扇控制系统包括线性调节器，输入/输出控制器和温度传感器。 线性调节器的第一端子连接到第一电源。 线性调节器的第二端子连接到风扇并经由第一电阻器和第二电阻器串联接地。 线性调节器的第三端子连接到第一电阻器和第二电阻器之间的节点。 输入/输出控制器的第一端经由第三电阻器连接到线性调节器的第三端。 输入/输出控制器的第二个端子连接到温度传感器。

公开(公告)号：US07580688B2

公开(公告)日：2009-08-25

申请号：US11434838

申请日：2006-05-15

Applicant: Wu Jiang ,  Yong-Zhao Huang

Inventor： Wu Jiang ,  Yong-Zhao Huang

IPC: H04B1/16

CPC classification number: H02J7/0047

Abstract: A weak battery warning circuit includes a warning circuit for generating an alarm; a battery having a cathode connected to ground; and a controlling circuit comprising a transistor, the transistor having an emitter for receiving an input voltage, a base connected to an anode of the battery via a base resistor, and a collector connected to the warning circuit and also connected to ground via a collector resistor. When the voltage of the battery reduces to a predetermined value, the controlling circuit controls the warning circuit to alarm.

Abstract translation: 弱电池警报电路包括用于产生警报的警告电路; 具有连接到地的阴极的电池; 以及包括晶体管的控制电路，所述晶体管具有用于接收输入电压的发射极，经由基极电阻连接到电池的阳极的基极，以及连接到警告电路并且还经由集电极电阻连接到地的集电极 。 当电池电压降低到预定值时，控制电路控制警告电路报警。