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1. 发明申请

US20110063877A1 Synchronous rectifying circuit with primary-side swithching current detection for offline power converters 审中-公开
标题翻译：用于离线功率转换器的初级侧开关电流检测同步整流电路
公开(公告)号：US20110063877A1
公开(公告)日：2011-03-17
申请号：US12585472
申请日：2009-09-16
申请人： Ta-Yung Yang , Ying-Chieh Su , Yen-Ting Chen , Pei-Sheng Tsu
发明人： Ta-Yung Yang , Ying-Chieh Su , Yen-Ting Chen , Pei-Sheng Tsu
IPC分类号： H02M3/335
CPC分类号： H02M3/33592 , Y02B70/1475
摘要： A synchronous rectifying circuit is provided for offline power converter. A pulse signal generator is utilized to generate a pulse signal in response to a switching current of the power transformer. An isolation device is coupled to the pulse signal generator for transferring the pulse signal through an isolation barrier of the power transformer. A synchronous rectifier includes a power switch and a control circuit. The power switch is coupled between the secondary side of the power transformer and the output of the power converter for the rectifying. The control circuit is operated to receive the pulse signal for turning on/off the power switch. The pulse signal is generated to turn on the power switch once the switching current is higher than a threshold.
摘要翻译：为离线电源转换器提供同步整流电路。利用脉冲信号发生器响应于电力变压器的开关电流产生脉冲信号。隔离装置耦合到脉冲信号发生器，用于通过电力变压器的隔离栅传递脉冲信号。同步整流器包括电源开关和控制电路。电源开关耦合在电源变压器的次级侧和功率转换器的输出端之间进行整流。操作控制电路接收用于打开/关闭电源开关的脉冲信号。产生脉冲信号以在开关电流高于阈值时接通电源开关。

2. 发明申请

US20070121352A1 Switching control circuit having a valley voltage detector to achieve soft switching for a resonant power converter 有权
标题翻译：具有谷值电压检测器的开关控制电路以实现谐振功率转换器的软开关
公开(公告)号：US20070121352A1
公开(公告)日：2007-05-31
申请号：US11287268
申请日：2005-11-28
申请人： Ta-Yung Yang , Rui-Hong Lu , Chuh-Ching Li , Feng-Cheng Tsao , Pei-Sheng Tsu
发明人： Ta-Yung Yang , Rui-Hong Lu , Chuh-Ching Li , Feng-Cheng Tsao , Pei-Sheng Tsu
IPC分类号： H02M3/335
CPC分类号： H02M3/33523 , Y02B70/1433
摘要： The present invention provides a switching control circuit having a valley voltage detector to achieve the soft switching and improve the efficiency of a power converter. The switching control circuit includes a control circuit coupled to the feedback signal to generate a switching signal. Through an output circuit, the switching signal drives a switching device for switching a transformer and regulating the output of the power converter. The valley voltage detector is coupled to an auxiliary winding of the transformer for generating a control signal in response to the voltage of the transformer. The control signal is used for enabling the switching signal. The switching signal further turns on the switching device in response to a valley voltage across the switching device.
摘要翻译：本发明提供一种具有谷值电压检测器的开关控制电路，以实现软开关并提高功率转换器的效率。开关控制电路包括耦合到反馈信号的控制电路以产生开关信号。通过输出电路，开关信号驱动用于切换变压器并调节功率转换器的输出的开关装置。谷值电压检测器耦合到变压器的辅助绕组，以响应于变压器的电压产生控制信号。控制信号用于启用切换信号。开关信号进一步响应于开关器件上的谷值电压而导通开关器件。

3. 发明授权

US08102133B2 Control circuit for BLDC motors 有权
标题翻译： BLDC电机控制电路
公开(公告)号：US08102133B2
公开(公告)日：2012-01-24
申请号：US12488676
申请日：2009-06-22
申请人： Ta-Yung Yang , Pei-Sheng Tsu , Shih-Jen Yang , Yi-Min Hsu , Chung-Hui Yeh
发明人： Ta-Yung Yang , Pei-Sheng Tsu , Shih-Jen Yang , Yi-Min Hsu , Chung-Hui Yeh
IPC分类号： H02P6/00
CPC分类号： H02P6/16 , H02P6/085 , H02P29/0241 , H02P29/027 , H02P2205/05
摘要： A BLDC (brushless direct current) motor system of the present invention includes a control circuit, a sequencer, a driving circuit, and a BLDC motor. The control circuit determines the maximum torque and the maximum speed of the BLDC motor. The control circuit includes an over-current detection circuit to generate a reset signal in response to a switching current of the BLDC motor. The reset signal is generated when the switching current of the BLDC motor exceeds a threshold. A pulse width of the PWM signal is correlated to the level of a speed-control signal and the level of the torque-control signal. The pulse width of the PWM signal is also controlled by the reset signal generated by the over-current detection circuit.
摘要翻译：本发明的BLDC（无刷直流）电动机系统包括控制电路，定序器，驱动电路和BLDC电动机。控制电路确定BLDC电机的最大转矩和最大转速。控制电路包括过电流检测电路，以响应于BLDC电动机的开关电流产生复位信号。当BLDC电机的开关电流超过阈值时，产生复位信号。 PWM信号的脉冲宽度与速度控制信号的电平和转矩控制信号的电平相关。 PWM信号的脉冲宽度也由过电流检测电路产生的复位信号控制。

4. 发明授权

US07724034B2 Floating driving circuit 有权
标题翻译：浮动驱动电路
公开(公告)号：US07724034B2
公开(公告)日：2010-05-25
申请号：US11984122
申请日：2007-11-14
申请人： Pei-Sheng Tsu , Ta-Yung Yang
发明人： Pei-Sheng Tsu , Ta-Yung Yang
IPC分类号： H03K19/0175
CPC分类号： H03K17/6871 , H03K2217/0036 , H03K2217/0081
摘要： A floating driving circuit according to the present invention comprises an input circuit to receive an input signal. A latch circuit receives a trigger signal for generating a latch signal. The latch signal is used to turn on/off a switch. A coupling capacitor is connected between the input circuit and the latch circuit to generate the trigger signal in response to the input signal. A diode is connected from a voltage source to a floating supply terminal of the latch circuit for charging a capacitor. The capacitor is coupled between the floating supply terminal and a floating ground terminal of the latch circuit to provide a supply voltage to the latch circuit. The latch circuit is controlled by the input signal via the coupling capacitor.
摘要翻译：根据本发明的浮动驱动电路包括用于接收输入信号的输入电路。锁存电路接收用于产生锁存信号的触发信号。锁存信号用于打开/关闭开关。耦合电容器连接在输入电路和锁存电路之间，以响应输入信号产生触发信号。二极管从电压源连接到锁存电路的浮动电源端，用于对电容器充电。电容器耦合在浮动电源端子和锁存电路的浮动接地端子之间以向锁存电路提供电源电压。锁存电路由输入信号通过耦合电容控制。

5. 发明申请

US20080061827A1 Floating driving circuit 有权
标题翻译：浮动驱动电路
公开(公告)号：US20080061827A1
公开(公告)日：2008-03-13
申请号：US11984122
申请日：2007-11-14
申请人： Pei-Sheng Tsu , Ta-Yung Yang
发明人： Pei-Sheng Tsu , Ta-Yung Yang
IPC分类号： H03K19/0175
CPC分类号： H03K17/6871 , H03K2217/0036 , H03K2217/0081
摘要： A floating driving circuit according to the present invention comprises an input circuit to receive an input signal. A latch circuit receives a trigger signal for generating a latch signal. The latch signal is used to turn on/off a switch. A coupling capacitor is connected between the input circuit and the latch circuit to generate the trigger signal in response to the input signal. A diode is connected from a voltage source to a floating supply terminal of the latch circuit for charging a capacitor. The capacitor is coupled between the floating supply terminal and a floating ground terminal of the latch circuit to provide a supply voltage to the latch circuit. The latch circuit is controlled by the input signal via the coupling capacitor.
摘要翻译：根据本发明的浮动驱动电路包括用于接收输入信号的输入电路。锁存电路接收用于产生锁存信号的触发信号。锁存信号用于打开/关闭开关。耦合电容器连接在输入电路和锁存电路之间，以响应输入信号产生触发信号。二极管从电压源连接到锁存电路的浮动电源端，用于对电容器充电。电容器耦合在浮动电源端子和锁存电路的浮动接地端子之间以向锁存电路提供电源电压。锁存电路由输入信号通过耦合电容控制。

6. 发明申请

US20130329464A1 DIGITAL POWER CONTROL CIRCUIT FOR POWER CONVERTER AND CONTROL CIRCUIT FOR POWER CONVERTER 审中-公开
标题翻译：用于电力转换器的电源转换器和控制电路的数字功率控制电路
公开(公告)号：US20130329464A1
公开(公告)日：2013-12-12
申请号：US13900561
申请日：2013-05-23
申请人： Ta-Yung Yang , Pei-Sheng Tsu , Yi-Min Hsu , Chung-Hui Yeh
发明人： Ta-Yung Yang , Pei-Sheng Tsu , Yi-Min Hsu , Chung-Hui Yeh
IPC分类号： H02M3/335
CPC分类号： H02M3/33515 , H02M3/33592 , Y02B70/1475
摘要： A control circuit for a power converter and a digital power control circuit for a power converter are provided. The control circuit comprises a microcontroller, an oscillation circuit, an analog-to-digital converter and a signal generator. The microcontroller comprises a flash memory. The oscillation circuit comprises a phase lock loop for generating a clock signal. The analog-to-digital converter generates a digital feedback signal for the microcontroller corresponding to an output of the power converter. The signal generator is configured to receive the clock signal and data of the microcontroller for generating a switching signal. The switching signal is configured to switch a transformer for regulating the output of the power converter corresponding to the output of the microcontroller.
摘要翻译：提供了一种用于功率转换器的控制电路和用于功率转换器的数字功率控制电路。控制电路包括微控制器，振荡电路，模数转换器和信号发生器。微控制器包括闪存。振荡电路包括用于产生时钟信号的锁相环。模数转换器产生对应于功率转换器的输出的微控制器的数字反馈信号。信号发生器被配置为接收用于产生开关信号的微控制器的时钟信号和数据。开关信号被配置为切换用于调节对应于微控制器的输出的功率转换器的输出的变压器。

7. 发明授权

US08400095B2 Constant-speed control circuit for BLDC motors 失效
标题翻译： BLDC电机恒速控制电路
公开(公告)号：US08400095B2
公开(公告)日：2013-03-19
申请号：US12831567
申请日：2010-07-07
申请人： Ta-Yung Yang , Ta-Hsu Huang , Chung-Hui Yeh , Pei-Sheng Tsu , Yi-Min Hsu , Shih-Jen Yang
发明人： Ta-Yung Yang , Ta-Hsu Huang , Chung-Hui Yeh , Pei-Sheng Tsu , Yi-Min Hsu , Shih-Jen Yang
IPC分类号： G05B11/26
CPC分类号： H02P6/085 , H02P6/34
摘要： A speed-control circuit for a BLDC motor is provided. The speed-control circuit includes a pulse generator, a current source circuit, a filter circuit, an error amplification circuit and a PWM circuit. The pulse generator detects a speed signal of the BLDC motor to generate a pulse signal. The filter circuit is coupled to the current source circuit to generate an average signal. The error amplification circuit receives the average signal and a speed-reference signal for generating a speed-control signal. The PWM circuit generates a switching signal to drive the BLDC motor in response to the speed-control signal. A pulse width of the switching signal is determined by the speed-control signal.
摘要翻译：提供了一种用于BLDC电机的速度控制电路。速度控制电路包括脉冲发生器，电流源电路，滤波电路，误差放大电路和PWM电路。脉冲发生器检测BLDC电机的速度信号以产生脉冲信号。滤波器电路耦合到电流源电路以产生平均信号。误差放大电路接收平均信号和用于产生速度控制信号的速度参考信号。 PWM电路产生切换信号，以响应速度控制信号来驱动BLDC电动机。切换信号的脉冲宽度由速度控制信号决定。

8. 发明授权

US08154888B2 Offline synchronous rectifier circuit with turned-on arbiter and phase-lock for switching power converters 有权
标题翻译：具有开启电源转换器的开启仲裁器和相位锁定的离线同步整流电路
公开(公告)号：US08154888B2
公开(公告)日：2012-04-10
申请号：US12348335
申请日：2009-01-05
申请人： Ta-Yung Yang , Chou-Sheng Wang , Pei-Sheng Tsu
发明人： Ta-Yung Yang , Chou-Sheng Wang , Pei-Sheng Tsu
IPC分类号： H02M3/335 , H02H7/122
CPC分类号： H02M3/33592 , Y02B70/1475
摘要： A synchronous rectifier circuit of a switching power converter is provided and includes first and second power transistors and first and second diodes connected to a transformer and an output of the power converter for rectifying. An arbiter circuit generates a lock signal to prevent the second power transistor from being turned on when the first power transistor is turned on. A controller generates a drive signal to control the first power transistor according to an on signal and an off signal. A phase-lock circuit generates the off signal according to the on signal. The on signal is enabled once the first diode is forward biased. The one signal enables the drive signal for turning on the first power transistor. The off signal disables the drive signal for turning off the first power transistor. The off signal is enabled before the disabling of the on signal.
摘要翻译：提供了一种开关电源转换器的同步整流电路，包括第一和第二功率晶体管以及连接到变压器的第一和第二二极管以及用于整流的功率转换器的输出。仲裁器电路产生锁定信号，以防止当第一功率晶体管导通时第二功率晶体管导通。控制器根据接通信号和截止信号产生驱动信号以控制第一功率晶体管。锁相电路根据接通信号产生关断信号。第一个二极管正向偏置后，导通信号被使能。一个信号使得驱动信号能够接通第一功率晶体管。关闭信号禁用用于关闭第一功率晶体管的驱动信号。关闭信号在禁用接通信号之前被使能。

9. 发明授权

US08049448B2 Control circuit with dual programmable feedback loops for BLDC motors 有权
标题翻译：具有BLDC电机双编程反馈回路的控制电路
公开(公告)号：US08049448B2
公开(公告)日：2011-11-01
申请号：US12465866
申请日：2009-05-14
申请人： Ta-Yung Yang , Yi-Min Hsu , Pei-Sheng Tsu , Chung-Hui Yeh , Shih-Jen Yang
发明人： Ta-Yung Yang , Yi-Min Hsu , Pei-Sheng Tsu , Chung-Hui Yeh , Shih-Jen Yang
IPC分类号： H02P6/08
CPC分类号： H02P6/16 , H02P6/18 , H02P21/0003
摘要： A BLDC (brushless direct current) motor system of the present invention includes a control circuit, a sequencer, a driving circuit, and a BLDC motor. The control circuit comprises a speed-feedback loop and a torque-feedback loop to control the maximum speed and the maximum torque of the BLDC motor in parallel configuration. The speed-feedback loop generates a speed-control signal. The torque-feedback loop generates a torque-control signal. A PWM circuit receives the speed-control signal and the torque-control signal to generate a PWM signal. A pulse width of the PWM signal is correlated to the level of the speed-control signal and/or the level of the torque-control signal.
摘要翻译：本发明的BLDC（无刷直流）电动机系统包括控制电路，定序器，驱动电路和BLDC电动机。控制电路包括速度反馈回路和扭矩反馈回路，以并联配置来控制BLDC电动机的最大转速和最大转矩。速度反馈回路产生速度控制信号。扭矩反馈回路产生转矩控制信号。 PWM电路接收速度控制信号和转矩控制信号以产生PWM信号。 PWM信号的脉冲宽度与速度控制信号的电平和/或转矩控制信号的电平相关。

10. 发明授权

US08044685B2 Floating driving circuit 有权
标题翻译：浮动驱动电路
公开(公告)号：US08044685B2
公开(公告)日：2011-10-25
申请号：US11450308
申请日：2006-06-12
申请人： Pei-Sheng Tsu , Ta-Yung Yang
发明人： Pei-Sheng Tsu , Ta-Yung Yang
IPC分类号： H03K19/094 , H03B1/00
CPC分类号： H03K17/6871 , H03K2217/0036 , H03K2217/0081
摘要： A floating driving circuit according to the present invention comprises an input circuit to receive an input signal. A latch circuit receives a trigger signal for generating a latch signal. The latch signal is used to turn on/off a switch. A coupling capacitor is connected between the input circuit and the latch circuit to generate the trigger signal in response to the input signal. A diode is connected from a voltage source to a floating supply terminal of the latch circuit for charging a capacitor. The capacitor is coupled between the floating supply terminal and a floating ground terminal of the latch circuit to provide a supply voltage to the latch circuit. The latch circuit is controlled by the input signal via the coupling capacitor.
摘要翻译：根据本发明的浮动驱动电路包括用于接收输入信号的输入电路。锁存电路接收用于产生锁存信号的触发信号。锁存信号用于打开/关闭开关。耦合电容器连接在输入电路和锁存电路之间，以响应输入信号产生触发信号。二极管从电压源连接到锁存电路的浮动电源端，用于对电容器充电。电容器耦合在浮动电源端子和锁存电路的浮动接地端子之间以向锁存电路提供电源电压。锁存电路由输入信号通过耦合电容控制。

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