公开(公告)号：US08344674B2

公开(公告)日：2013-01-01

申请号：US12981490

申请日：2010-12-30

Applicant: Yong-Zhao Huang

Inventor： Yong-Zhao Huang

IPC: H02P6/00

CPC classification number: F04D27/004

Abstract: A fan speed control circuit includes a voltage input terminal, a thyristor, a thermistor, and first and second switches. The terminal is grounded through a first resistor and the thermistor, connected to an anode of the thyristor, and connected to a second terminal of the second switch through a second resistor. A node between the resistor and the thermistor is connected to a control terminal of the first switch. A second terminal of the first switch is grounded. A first terminal of the first switch is connected to a control terminal of the thyristor through a third resistor. A fourth resistor is connected between the anode and control terminal of the thyristor. A control terminal of the second switch is connected to the control terminal of the thyristor. A first terminal of the second switch is connected to a cathode of the thyristor and a voltage pin of a fan.

Abstract translation: 风扇速度控制电路包括电压输入端子，晶闸管，热敏电阻以及第一和第二开关。 端子通过第一电阻器和热敏电阻器接地，其连接到晶闸管的阳极，并通过第二电阻器连接到第二开关的第二端子。 电阻器和热敏电阻之间的节点连接到第一开关的控制端子。 第一开关的第二端接地。 第一开关的第一端子通过第三电阻器连接到晶闸管的控制端子。 第四个电阻连接在晶闸管的阳极和控制端之间。 第二开关的控制端子连接到晶闸管的控制端子。 第二开关的第一端子连接到晶闸管的阴极和风扇的电压引脚。

公开(公告)号：US08324854B2

公开(公告)日：2012-12-04

申请号：US13442880

申请日：2012-04-10

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 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.

公开(公告)号：US08283572B2

公开(公告)日：2012-10-09

申请号：US12868686

申请日：2010-08-25

Applicant: Guang-Feng Ou ,  Yong-Zhao Huang

Inventor： Guang-Feng Ou ,  Yong-Zhao Huang

IPC: H05K1/11

CPC classification number: H05K1/0219 ,  H05K1/0245 ,  H05K2201/09336 ,  H05K2201/09618

Abstract: A printed circuit board includes a reference layer configured to connect to a power or a ground and a dielectric layer stacked on the reference layer. The dielectric layer includes a component surface opposing the reference layer. The component surface forms a differential pairs, a protection runner, and a power runner. The differential pairs include a substantially linear part. The protection runner is intervened between the linear part and the power runner, and is substantially parallel to the differential pairs. The length of the protection runner is approximately equal to that of the linear part. Each of the two ends of the protection runner forms a via that electrically connects the protection runner to the reference layer.

Abstract translation: 印刷电路板包括被配置为连接到电源或接地的参考层和堆叠在参考层上的电介质层。 电介质层包括与参考层相对的部件表面。 部件表面形成差速对，保护转轮和动力转轮。 差分对包括基本线性的部分。 保护跑步者介于线性部分和动力转轮之间，并且基本上平行于差速对。 保护流道的长度大致等于直线部分的长度。 保护流道的两端中的每一端形成将保护流道电连接到参考层的通孔。

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：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：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：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。

公开(公告)号：US20060255779A1

公开(公告)日：2006-11-16

申请号：US11306624

申请日：2006-01-04

Applicant: Yong-Zhao Huang ,  Wu Jiang ,  Yong-Xing You

Inventor： Yong-Zhao Huang ,  Wu Jiang ,  Yong-Xing You

IPC: G05F1/00

CPC classification number: G05F1/565

Abstract: A linear voltage regulator includes an error amplifier receiving an operational voltage and provided a control signal, a pass device controlled by the control signal and providing a load voltage from a power supply, and a leakage circuit controlled by the control signal and consuming a drive-back current. Since the linear voltage regulator includes the leakage circuit, a drive-back current created can be grounded via the switch transistor of the leakage circuit. Thereby an impedance calibration of termination transistors will be normal, and a life span of electronic components will be protected.

Abstract translation: 线性稳压器包括接收操作电压并提供控制信号的误差放大器，由控制信号控制的通过装置以及从电源提供负载电压，以及由控制信号控制的泄漏电路， 回流 由于线性稳压器包括泄漏电路，所以产生的驱动电流可以通过泄漏电路的开关晶体管接地。 因此，终端晶体管的阻抗校准将是正常的，并且电子元件的寿命将得到保护。

公开(公告)号：US20060097709A1

公开(公告)日：2006-05-11

申请号：US11267062

申请日：2005-11-04

Applicant: Yong-Zhao Huang ,  Yun Li

Inventor： Yong-Zhao Huang ,  Yun Li

IPC: G05F1/56

CPC classification number: G05F1/565

Abstract: A linear voltage regulator is provided for providing an output voltage to a load. In a preferred embodiment, the linear voltage regulator includes: a pass element for receiving an input voltage and providing an output voltage to a load, the pass element being adapted to be controlling by a controlling voltage; two resistors connected to each other in series for receiving the output voltage and providing a voltage reference; and a feedback circuit for receiving the voltage reference and providing the controlling voltage to the pass element. The linear voltage regulator is capable of providing a steady output voltage to the load, and a cost thereof being down at the same time.

Abstract translation: 提供线性电压调节器以向负载提供输出电压。 在优选实施例中，线性电压调节器包括：用于接收输入电压并向负载提供输出电压的通过元件，所述通过元件适于由控制电压控制; 两个电阻串联连接以接收输出电压并提供电压参考; 以及反馈电路，用于接收电压基准并向通过元件提供控制电压。 线性稳压器能够为负载提供稳定的输出电压，并且其成本同时降低。

公开(公告)号：US08935544B2

公开(公告)日：2015-01-13

申请号：US13183669

申请日：2011-07-15

Applicant: Feng-Long He ,  Yong-Zhao Huang

Inventor： Feng-Long He ,  Yong-Zhao Huang

IPC: G06F1/26 ,  G06F1/32 ,  G06F11/32 ,  H05B33/08

CPC classification number: G06F11/325 ,  H05B33/0818 ,  H05B33/0845 ,  Y02B20/346

Abstract: An indicator light control circuit includes a basic input output system (BIOS) integrated circuit (IC), a microcontroller, a signal control unit, an electronic switch, and an indicator light. The microcontroller includes a general purpose input output (GPIO) pin. When different operating options of the indicator light are set into and by the BIOS IC, the BIOS IC controls the GPIO pin of the microcontroller to output command signals, such as a low voltage signal, a high voltage signal and pulse signals, then the signal control unit generates and outputs signals according to the command signals. Thus, the electronic switch is operated to turn on or turn off or to pulse when controlling the operation of the indicator light(s).

Abstract translation: 指示灯控制电路包括基本输入输出系统（BIOS）集成电路（IC），微控制器，信号控制单元，电子开关和指示灯。 微控制器包括通用输入输出（GPIO）引脚。 当BIOS IC设置不同的指示灯操作选项时，BIOS IC控制微控制器的GPIO引脚输出低电压信号，高电压信号和脉冲信号等指令信号， 控制单元根据命令信号生成并输出信号。 因此，当控制指示灯的操作时，电子开关被操作以接通或关断或脉冲。