公开(公告)号：US20120185705A1

公开(公告)日：2012-07-19

申请号：US13090469

申请日：2011-04-20

申请人： QI-YAN LUO ,  SONG-LIN TONG ,  YA-JUN PAN

发明人： QI-YAN LUO ,  SONG-LIN TONG ,  YA-JUN PAN

IPC分类号： G06F1/26

CPC分类号： G06F1/305

摘要： A power supply circuit for a CPU (central processing unit) includes a CPU, a power supply, a plurality of voltage adjustment modules, a pulse width modulator, a plurality of resistivity selection modules, and a module management unit. The resistivity selection module includes an electronic switch, a first resistor, a second resistor, a third resistor, and a fourth resistor. When the CPU operates abnormally, the power supply circuit utilizes the resistors in the resistivity selection module as voltage dividers, thereby restricting MOSFET or other components to operate in a normal voltage range.

摘要翻译： CPU（中央处理单元）的电源电路包括CPU，电源，多个电压调整模块，脉宽调制器，多个电阻率选择模块和模块管理单元。 电阻率选择模块包括电子开关，第一电阻器，第二电阻器，第三电阻器和第四电阻器。 当CPU工作异常时，电源电路利用电阻率选择模块中的电阻作为分压器，从而限制MOSFET或其他组件在正常电压范围内工作。

公开(公告)号：US20120182660A1

公开(公告)日：2012-07-19

申请号：US13094754

申请日：2011-04-26

申请人： SONG-LIN TONG ,  QI-YAN LUO ,  PENG CHEN

发明人： SONG-LIN TONG ,  QI-YAN LUO ,  PENG CHEN

IPC分类号： H02H3/24

CPC分类号： H02H3/006 ,  H02H3/24

摘要： A resistance determining system and method for a protection circuit, includes a resistance determining unit. The resistance determining unit interconnects a microcontroller and a digital resistor, where the microcontroller has first setting voltage corresponding to a first voltage threshold for activating the protection circuit, and the microcontroller is capable of receiving and converting a first external voltage input to the protection circuit to be a first converted voltage. The digital resistor includes a first variable resistor having two terminals connected to the respective first terminal and the second terminal. The microcontroller adjusts a resistance of the first variable resistor to be a first threshold resistance if the first converted voltage is substantially equal to the first voltage threshold, and the first resistance is determined to be substantially equal to the first threshold resistance.

摘要翻译： 一种用于保护电路的电阻确定系统和方法，包括电阻确定单元。 电阻确定单元将微控制器和数字电阻相互连接，其中微控制器具有对应于用于启动保护电路的第一电压阈值的第一设定电压，并且微控制器能够接收和转换到保护电路的第一外部电压输入到 成为第一个转换电压。 数字电阻器包括具有连接到相应的第一端子和第二端子的两个端子的第一可变电阻器。 如果第一转换电压基本上等于第一电压阈值，则微控制器将第一可变电阻器的电阻调整为第一阈值电阻，并且确定第一电阻基本上等于第一阈值电阻。

公开(公告)号：US20120179930A1

公开(公告)日：2012-07-12

申请号：US13049909

申请日：2011-03-17

申请人： SONG-LIN TONG ,  QI-YAN LUO ,  PENG CHEN

发明人： SONG-LIN TONG ,  QI-YAN LUO ,  PENG CHEN

IPC分类号： G06F1/26

CPC分类号： G06F1/24 ,  G06F1/305

摘要： A motherboard includes a motherboard power supply connector and a time delay circuit. The motherboard power supply connector connects a power supply unit. The motherboard power supply connector has a power supply on pin and a power good pin. The power good pin is configured for receiving a power good signal from the power supply unit. The time delay circuit has an input terminal and an output terminal. The input terminal is configured for receiving a power supply on signal. The output terminal is connected to the power supply on pin and is configured for sending the power supply on signal to the power supply on pin after a time delay determined by the time delay circuit.

摘要翻译： 主板包括主板电源连接器和延时电路。 主板电源连接器连接电源单元。 主板电源连接器有一个引脚电源和一个电源良好的引脚。 电源良好引脚配置为从电源单元接收电源良好信号。 延时电路具有输入端和输出端。 输入端子被配置为接收电源接通信号。 输出端子连接到引脚上的电源，并配置为在由延时电路确定的时间延迟后，将电源接通信号发送到引脚上的电源。

公开(公告)号：US20120169312A1

公开(公告)日：2012-07-05

申请号：US13053408

申请日：2011-03-22

申请人： SONG-LIN TONG ,  QI-YAN LUO ,  PENG CHEN

发明人： SONG-LIN TONG ,  QI-YAN LUO ,  PENG CHEN

IPC分类号： G05F1/10

CPC分类号： G05F1/575

摘要： A driving voltage adjusting circuit includes a digital rheostat, a control chip, a low dropout regulating circuit, and a driving circuit. The control chip is connected with the digital rheostat, and configured for adjusting the resistance of the digital rheostat. The low dropout regulating circuit is connected with the digital rheostat and outputs an output voltage according to the resistance of the digital rheostat. The driving circuit comprising a number of switch elements connected with each other and a driver configured for driving the switch elements, each of the switch elements comprising a first terminal, a second terminal, and a control terminal configured for controlling connection and disconnection of the first terminal and the second terminal; the first terminal and the second terminal connected with the control chip, the driver is connected with the low dropout regulating circuit and output an driving voltage to the control terminal.

摘要翻译： 驱动电压调节电路包括数字变阻器，控制芯片，低压差调节电路和驱动电路。 控制芯片与数字变阻器连接，并配置用于调节数字变阻器的电阻。 低压差调节电路与数字变阻器相连，并根据数字变阻器的电阻输出一个输出电压。 所述驱动电路包括彼此连接的多个开关元件和被配置为驱动所述开关元件的驱动器，所述开关元件中的每一个包括第一端子，第二端子和控制端子，所述第一端子，第二端子和控制端子被配置为用于控制所述开关元件的连接和断开 终端和第二终端; 与控制芯片连接的第一端子和第二端子，驱动器与低压差调节电路连接，并向控制端子输出驱动电压。

公开(公告)号：US20120161729A1

公开(公告)日：2012-06-28

申请号：US13100962

申请日：2011-05-04

申请人： SONG-LIN TONG ,  QI-YAN LUO ,  PENG CHEN

发明人： SONG-LIN TONG ,  QI-YAN LUO ,  PENG CHEN

IPC分类号： G05F1/618

CPC分类号： H02M3/1588 ,  G06F1/26 ,  Y02B70/1466

摘要： A buck converter includes an input unit, an inductor, and a filter capacitor. The input unit has an input node connected to a power source and an intermediate node connected to an output node through the inductor. The filter capacitor is coupled between the output node and ground. A first RC integral circuit is in parallel connection with the first inductor, a voltage acquired unit is in parallel connection with the capacitor of the RC integral circuit for obtaining a voltage U1 between the two terminals of the second capacitor. A control unit is coupled to the first voltage acquired unit for receiving the voltage U1 of the capacitor.

摘要翻译： 降压转换器包括输入单元，电感器和滤波电容器。 输入单元具有连接到电源的输入节点和通过电感器连接到输出节点的中间节点。 滤波电容器耦合在输出节点和地之间。 第一RC积分电路与第一电感并联，电压获取单元与RC积分电路的电容并联连接，以获得第二电容器的两个端子之间的电压U1。 控制单元耦合到第一电压获取单元，用于接收电容器的电压U1。

公开(公告)号：US20120126767A1

公开(公告)日：2012-05-24

申请号：US13092217

申请日：2011-04-22

申请人： QI-YAN LUO ,  SONG-LIN TONG ,  PENG CHEN

发明人： QI-YAN LUO ,  SONG-LIN TONG ,  PENG CHEN

IPC分类号： G05F1/618

CPC分类号： H02M3/1588 ,  Y02B70/1466 ,  Y10T307/615

摘要： A buck converter includes a first electrical switch and a second electrical switch connected in series, a PWM module coupled to the gate of the first electrical switch through a first adjustable resistance module and coupled to the gate of the second electrical switch through a second adjustable resistance module, a filter circuit coupled between the connecting node of the two different electrical switches and an output node, and a control module for adjusting values of the first adjustable resistance module and the second adjustable resistance module and acquiring a voltage value from the connecting node.

摘要翻译： 降压转换器包括串联连接的第一电开关和第二电开关，PWM模块通过第一可调电阻模块耦合到第一电开关的栅极，并通过第二可调电阻耦合到第二电开关的栅极 模块，耦合在两个不同电气开关的连接节点和输出节点之间的滤波器电路，以及用于调整第一可调电阻模块和第二可调电阻模块的值并从连接节点获取电压值的控制模块。

公开(公告)号：US20120112715A1

公开(公告)日：2012-05-10

申请号：US13031621

申请日：2011-02-22

申请人： SONG-LIN TONG ,  QI-YAN LUO ,  PENG CHEN

发明人： SONG-LIN TONG ,  QI-YAN LUO ,  PENG CHEN

IPC分类号： G05F1/10 ,  H02H9/00

CPC分类号： H02M3/155 ,  H02M2001/344

摘要： A snubber circuit for decreasing a voltage spike of a buck converter includes a resistor unit, a capacitor unit, a detecting unit, and a control unit. The resistor unit provides multiple groups of resistance values. The capacitor unit provides multiple groups of capacitance values. The detecting unit detects voltage spikes of the buck converter corresponding to each group of resistance values and capacitance values. The control unit selects each group of resistance and capacitance to respectively connect to the buck converter and determines a group of resistance and capacitance corresponding to a lowest voltage spike by comparing the detected voltage spikes with each other.

摘要翻译： 用于降低降压转换器的电压尖峰的缓冲电路包括电阻单元，电容器单元，检测单元和控制单元。 电阻单元提供多组电阻值。 电容器单元提供多组电容值。 检测单元检测对应于每组电阻值和电容值的降压转换器的电压尖峰。 控制单元选择每组电阻和电容分别连接到降压转换器，并通过将检测到的电压尖峰相互比较来确定与最低电压尖峰相对应的一组电阻和电容。

公开(公告)号：US08861219B2

公开(公告)日：2014-10-14

申请号：US13451044

申请日：2012-04-19

申请人： Qi-Yan Luo ,  Zhou Yang ,  Song-Lin Tong

发明人： Qi-Yan Luo ,  Zhou Yang ,  Song-Lin Tong

IPC分类号： H05K7/10 ,  H05K1/02 ,  H05K1/11

CPC分类号： H05K1/0262 ,  H05K1/111

摘要： A printed circuit board (PCB) includes two power supply units, a central processing unit (CPU), two inductors and a temperature compensation resistor. One of the inductor is electrically connected between one power supply unit and the CPU, the other inductor is electrically connected between another power supply unit and the CPU. The temperature compensation resistor is electrically connected between the power supply units and ground, and is positioned between the two inductors to adjust output voltage from the CPU.

摘要翻译： 印刷电路板（PCB）包括两个电源单元，一个中央处理单元（CPU），两个电感器和一个温度补偿电阻器。 一个电感器电连接在一个电源单元和CPU之间，另一个电感器电连接在另一个电源单元和CPU之间。 温度补偿电阻电连接在电源单元和地之间，位于两个电感之间，以调整CPU的输出电压。

公开(公告)号：US08513954B2

公开(公告)日：2013-08-20

申请号：US13081502

申请日：2011-04-07

申请人： Song-Lin Tong ,  Qi-Yan Luo ,  Peng Chen

发明人： Song-Lin Tong ,  Qi-Yan Luo ,  Peng Chen

IPC分类号： H01H31/02

CPC分类号： G01R31/02

摘要： An RC test circuit includes an RC circuit, a digital rheostat, a control chip, and an oscillograph. The RC circuit includes a plurality of positive terminals and a plurality of negative terminals. The digital rheostat includes a plurality of rheostats each including a sliding terminal and a fixed terminal. The sliding terminals are correspondingly connected to the positive terminals while the fixed terminals are correspondingly connected to the negative terminals. The control chip is connected to the digital rheostat, and configured for controlling the digital rheostat to change the resistance of each rheostat. The oscillograph is connected to the RC circuit for displaying a waveform of the RC circuit.

摘要翻译： RC测试电路包括RC电路，数字变阻器，控制芯片和示波器。 RC电路包括多个正极端子和多个负极端子。 数字变阻器包括多个变阻器，每个变阻器包括滑动端子和固定端子。 滑动端子相应地连接到正极端子，而固定端子相应地连接到负极端子。 控制芯片连接到数字变阻器，并配置为控制数字变阻器以改变每个变阻器的电阻。 示波器连接到RC电路，以显示RC电路的波形。

公开(公告)号：US08502521B2

公开(公告)日：2013-08-06

申请号：US13162584

申请日：2011-06-17

申请人： Song-Lin Tong ,  Qi-Yan Luo ,  Peng Chen

发明人： Song-Lin Tong ,  Qi-Yan Luo ,  Peng Chen

IPC分类号： G01R31/02 ,  G01R21/00

CPC分类号： G06F1/26 ,  G01R21/06 ,  G01R21/133

摘要： A measuring device for a hard disk drive includes a first input node, a hard disk drive having a first input terminal, the first input terminal being coupled to the first input node to provide power to the hard disk drive. A first input current sampling unit is coupled between the first input node and the first input terminal of the hard disk drive to obtain a first input current Iin1. A first input voltage sampling unit is coupled to the first input terminal of the hard disk drive to obtain a first input voltage Uin1. A control unit is coupled to the first input current sampling unit and the first input voltage sampling unit to receive the first input current and the first input voltage.

摘要翻译： 用于硬盘驱动器的测量装置包括第一输入节点，具有第一输入端的硬盘驱动器，第一输入端耦合到第一输入节点以向硬盘驱动器供电。 第一输入电流采样单元耦合在第一输入节点和硬盘驱动器的第一输入端之间，以获得第一输入电流Iin1。 第一输入电压采样单元耦合到硬盘驱动器的第一输入端，以获得第一输入电压Uin1。 控制单元耦合到第一输入电流采样单元和第一输入电压采样单元以接收第一输入电流和第一输入电压。