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1. 发明申请

US20090309526A1 CONTROL CIRCUIT WITH DUAL PROGRAMMABLE FEEDBACK LOOPS FOR BLDC MOTORS 有权
标题翻译：用于BLDC电机的双可编程反馈电路的控制电路
公开(公告)号：US20090309526A1
公开(公告)日：2009-12-17
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。

2. 发明申请

US20100007295A1 OVER-TORQUE CONTROL CIRCUIT FOR BLDC MOTORS 有权
标题翻译： BLDC电动机的过扭矩控制电路
公开(公告)号：US20100007295A1
公开(公告)日：2010-01-14
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： H02H7/085
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。

3. 发明申请

US20100172156A1 OFFLINE SYNCHRONOUS RECTIFIER CIRCUIT WITH TURNED-ON ARBITER AND PHASE-LOCK FOR SWITCHING POWER CONVERTERS 有权
标题翻译：离合同步整流器电路，带有开启的电源转换器和相位锁
公开(公告)号：US20100172156A1
公开(公告)日：2010-07-08
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
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 diode 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。当第一功率晶体管被接通时，仲裁电路产生锁定信号以防止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。

4. 发明申请

US20130094253A1 Control Circuit for Offline Power Converter without Input Capacitor 有权
标题翻译：无输入电容器离线电源转换器控制电路
公开(公告)号：US20130094253A1
公开(公告)日：2013-04-18
申请号：US13604339
申请日：2012-09-05
申请人： Ta-Yung YANG , Chih-Hsien HSIEH , Jung-Sheng CHEN
发明人： Ta-Yung YANG , Chih-Hsien HSIEH , Jung-Sheng CHEN
IPC分类号： H02M3/335
CPC分类号： H02M1/4258 , H02M3/33507 , Y02B70/126
摘要： The present invention provides a control circuit for a power converter. The control circuit includes a switching circuit, an input-voltage detection circuit and a current-limit threshold. The switching circuit generates a switching signal coupled to switch a transformer of the power converter for regulating an output of the power converter in response to a feedback signal. The input-voltage detection circuit generates a control signal when an input voltage of the power converter is lower than a low-input threshold. The feedback signal is generated in response to the output of the power converter. A maximum duty of the switching signal is increased in response to the control signal. The current-limit threshold is for limiting a maximum value of a switching current flowing through the transformer. The current-limit threshold is increased in response to the control signal. An input of the power converter doesn't connect with electrolytic bulk capacitors.
摘要翻译：本发明提供了一种用于功率转换器的控制电路。控制电路包括开关电路，输入电压检测电路和限流阈值。开关电路产生耦合以切换功率转换器的变压器的开关信号，用于响应于反馈信号调节功率转换器的输出。当电力转换器的输入电压低于低输入阈值时，输入电压检测电路产生控制信号。响应于功率转换器的输出产生反馈信号。开关信号的最大占空比响应于控制信号而增加。限流阈值用于限制流过变压器的开关电流的最大值。响应于控制信号增加限流阈值。电源转换器的输入不与电解大容量电容器连接。

5. 发明申请

US20090219000A1 SWITCHING CONTROLLER WITH BURST MODE MANAGEMENT CIRCUIT TO REDUCE POWER LOSS AND ACOUSTIC NOISE OF POWER CONVERTER 有权
标题翻译：切换控制器，具有脉冲模式管理电路，减少功率转换器的功率损耗和声音噪声
公开(公告)号：US20090219000A1
公开(公告)日：2009-09-03
申请号：US12356592
申请日：2009-01-21
申请人： Ta-Yung YANG
发明人： Ta-Yung YANG
IPC分类号： G05F1/10
CPC分类号： H02M3/33507 , H02M1/44 , H02M3/156 , H02M3/157 , H02M2001/0032 , H02M2001/0035 , Y02B70/16
摘要： A switching controller of power converter according to the present invention comprises a PWM circuit and a burst-mode management circuit to reduce the power loss and the acoustic noise of the power converter at light-load. The PWM circuit generates a PWM signal. The burst-mode management circuit receives the PWM signal to generate a switching signal for generating a switching current and regulating the output of the power converter. The burst-mode management circuit further generates a current-limit signal in response to the output of the power converter to limit the switching current for reducing the power loss and the acoustic noise of the power converter when the power converter is at light-load.
摘要翻译：根据本发明的电力转换器的开关控制器包括PWM电路和突发模式管理电路，以减轻功率转换器在轻载时的功率损耗和声学噪声。 PWM电路产生PWM信号。突发模式管理电路接收PWM信号以产生用于产生开关电流并调节功率转换器的输出的开关信号。突发模式管理电路还响应于功率转换器的输出而产生限流信号，以限制开关电流，以在功率转换器处于轻负载时降低功率转换器的功率损耗和声学噪声。

6. 发明申请

US20130141056A1 ADAPTIVE FREQUENCY COMPENSATION FOR PFC POWER CONVERTER OPERATING IN CCM AND DCM 审中-公开
标题翻译：用于CCM和DCM中PFC功率转换器的自适应频率补偿
公开(公告)号：US20130141056A1
公开(公告)日：2013-06-06
申请号：US13560519
申请日：2012-07-27
申请人： Ta-Yung YANG , Ying-Chi CHEN , Chien-Tsun HSU , Cheng-Sung CHEN
发明人： Ta-Yung YANG , Ying-Chi CHEN , Chien-Tsun HSU , Cheng-Sung CHEN
IPC分类号： G05F1/70
CPC分类号： H02M1/4225 , Y02B70/126 , Y02P80/112
摘要： A control circuit of a power factor correction (PFC) converter is provided. The control circuit includes a pulse width modulation (PWM) circuit, an amplifier, a detection circuit., and a capacitor. The PWM circuit generates a switching signal in response to a loop signal. The amplifier is coupled to generate the loop signal in response to a switching current. The detection circuit generates a mode signal coupled to change output impedance of the amplifier. The capacitor is coupled to the amplifier for loop frequency compensation. The switching signal is coupled to switch an inductor of the PFC power converter and generate the switching current.
摘要翻译：提供功率因数校正（PFC）转换器的控制电路。控制电路包括脉宽调制（PWM）电路，放大器，检测电路和电容器。 PWM电路响应于环路信号产生开关信号。放大器被耦合以响应于开关电流产生环路信号。检测电路产生耦合以改变放大器的输出阻抗的模式信号。电容器耦合到放大器进行环路频率补偿。开关信号被耦合以切换PFC功率转换器的电感器并产生开关电流。

7. 发明申请

US20130063112A1 CONTROLLER AND POWER CONVERTER USING THE SAME FOR CLAMPING MAXIMUM SWITCHING CURRENT OF POWER CONVERTER 有权
标题翻译：使用相同的控制器和电源转换器来钳位功率转换器的最大开关电流
公开(公告)号：US20130063112A1
公开(公告)日：2013-03-14
申请号：US13344134
申请日：2012-01-05
申请人： Ta-Yung YANG , Keun-Eui HONG , Jung-Sheng CHEN , Juh-Yun KIM
发明人： Ta-Yung YANG , Keun-Eui HONG , Jung-Sheng CHEN , Juh-Yun KIM
IPC分类号： G05F1/10
CPC分类号： H02M3/33523 , H02M1/32 , H02M2001/0019 , H02M2001/0032 , Y02B70/16
摘要： A controller of a power converter is provided. The controller includes a feedback circuit, an output circuit, and a clamping circuit. The feedback circuit generates a feedback signal in accordance with output of the power converter. The output circuit generates a switching signal in accordance with the feedback signal for regulating the output of the power converter. The clamping circuit limits the feedback signal under a first level for a first load condition and limits the feedback signal under a second level for a second load condition. The clamping circuit includes a timer circuit. The timer circuit determines a slew rate of the feedback signal for increasing the feedback signal from the first level to the second level, and the second level is higher than the first level.
摘要翻译：提供电源转换器的控制器。控制器包括反馈电路，输出电路和钳位电路。反馈电路根据功率转换器的输出产生反馈信号。输出电路根据用于调节功率转换器的输出的反馈信号产生开关信号。钳位电路将反馈信号限制在第一级的第一负载条件下，并将反馈信号限制在第二级的第二负载条件。钳位电路包括定时器电路。定时器电路确定用于将反馈信号从第一电平增加到第二电平的反馈信号的转换速率，并且第二电平高于第一电平。

8. 发明申请

US20120230064A1 SWITCHING CONTROLLER WITH VALLEY-LOCK SWITCHING AND LIMITED MAXIMUM FREQUENCY FOR QUASI-RESONANT POWER CONVERTERS 有权
标题翻译：开关控制器带有门锁开关和有限的最大频率用于重合用电源转换器
公开(公告)号：US20120230064A1
公开(公告)日：2012-09-13
申请号：US13293276
申请日：2011-11-10
申请人： Ta-Yung YANG , Chao-Chih Lin
发明人： Ta-Yung YANG , Chao-Chih Lin
IPC分类号： H02M3/335
CPC分类号： H02M3/33523 , H02M2001/0035 , Y02B70/1433 , Y02B70/16
摘要： The present invention provides a controller for a power converter. The controller comprises a PWM circuit, a detection circuit, a signal generator, an oscillation circuit, a valley-lock circuit, a timing circuit and a burst circuit. The PWM circuit generates a switching signal coupled to switch a transformer of the power converter. A feedback signal is coupled to control and disable the switching signal. The detection circuit is coupled to the transformer via a resistor for generating a valley signal in response to a waveform obtained from the transformer. The signal generator is coupled to receive the feedback signal and the valley signal for generating an enabling signal. The oscillation circuit generates a maximum frequency signal. The maximum frequency signal associates with the enabling signal to generate a turning-on signal. The turning-on signal is coupled to enable the switching signal. A maximum frequency of the turning-on signal is limited.
摘要翻译：本发明提供了一种用于功率转换器的控制器。控制器包括PWM电路，检测电路，信号发生器，振荡电路，谷底锁定电路，定时电路和突发电路。 PWM电路产生耦合以切换功率转换器的变压器的开关信号。耦合反馈信号以控制和禁用开关信号。检测电路经由电阻器耦合到变压器，用于响应于从变压器获得的波形来产生谷值信号。信号发生器被耦合以接收反馈信号和谷值信号以产生使能信号。振荡电路产生最大频率信号。最大频率信号与使能信号相关联以产生导通信号。接通信号被耦合以使能开关信号。导通信号的最大频率受到限制。

9. 发明申请

US20120081084A1 Controller with Valley Switching and Limited Maximum Frequency for Quasi-Resonant Power Converters 有权
标题翻译：控制器具有谷切换和准谐振电源转换器的最大频率限制
公开(公告)号：US20120081084A1
公开(公告)日：2012-04-05
申请号：US13009639
申请日：2011-01-19
申请人： Ta-Yung YANG , Jung-Sheng CHEN , Li LIN
发明人： Ta-Yung YANG , Jung-Sheng CHEN , Li LIN
IPC分类号： G05F1/575
CPC分类号： H02M3/33507 , H02M2001/0035 , Y02B70/1433 , Y02B70/16
摘要： A controller for a power converter is provided. The controller includes a PWM circuit, a detection circuit, a signal generation circuit and an oscillation circuit. The PWM circuit generates a switching signal coupled to switch a transformer of the power converter. A feedback signal is coupled to the PWM circuit to disable the switching signal. The detection circuit is coupled to the transformer via a resistor for generating a valley signal in response to a signal waveform of the transformer. The signal generation circuit is coupled to receive the feedback signal and the valley signal for generating an enabling signal. The oscillation circuit generates a maximum frequency signal. The maximum frequency signal associates with the enabling signal to generate a pulse signal. The feedback signal is correlated to an output load of the power converter. The maximum frequency of the pulse signal is limited.
摘要翻译：提供一种用于功率转换器的控制器。控制器包括PWM电路，检测电路，信号发生电路和振荡电路。 PWM电路产生耦合以切换功率转换器的变压器的开关信号。反馈信号耦合到PWM电路以禁用开关信号。检测电路经由电阻器耦合到变压器，用于响应于变压器的信号波形产生谷值信号。信号发生电路被耦合以接收反馈信号和谷信号以产生使能信号。振荡电路产生最大频率信号。最大频率信号与使能信号相关联以产生脉冲信号。反馈信号与功率转换器的输出负载相关。脉冲信号的最大频率受到限制。

10. 发明申请

US20100232187A1 OUTPUT VOLTAGE CONTROL CIRCUIT OF POWER CONVERTER FOR LIGHT-LOAD POWER SAVING 有权
标题翻译：用于轻负载节能的电力转换器的输出电压控制电路
公开(公告)号：US20100232187A1
公开(公告)日：2010-09-16
申请号：US12720096
申请日：2010-03-09
申请人： Ta-Yung YANG , Wei-Hsuan HUANG , Chuh-Ching LI , Rui-Hong LU , Jenn-Yu G. LIN
发明人： Ta-Yung YANG , Wei-Hsuan HUANG , Chuh-Ching LI , Rui-Hong LU , Jenn-Yu G. LIN
IPC分类号： H02M3/335
CPC分类号： H02M3/33507 , H02M2001/0032 , Y02B70/16
摘要： A control circuit of a power converter for light-load power saving according to the present invention comprises a first feedback circuit coupled to an output voltage of the power converter to receive a first feedback signal. A second feedback circuit is coupled to the output voltage to receive a second feedback signal. A control circuit generates a switching signal for switching a transformer of the power converter and regulating the output voltage of the power converter in response to the first feedback signal and the second feedback signal. The switching signal is generated in accordance with the first feedback signal when an output load is high. The switching signal is generated in accordance with the second feedback signal during a light-load condition.
摘要翻译：根据本发明的用于轻载省电的功率转换器的控制电路包括耦合到功率转换器的输出电压的第一反馈电路以接收第一反馈信号。第二反馈电路耦合到输出电压以接收第二反馈信号。控制电路响应于第一反馈信号和第二反馈信号产生用于切换功率转换器的变压器的开关信号并调节功率转换器的输出电压。当输出负载高时，根据第一反馈信号产生开关信号。在轻负载状态期间根据第二反馈信号产生开关信号。

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