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151. 发明授权

US06903536B2 PFC-PWM controller having interleaved switching 有权
标题翻译： PFC-PWM控制器具有交错切换
公开(公告)号：US06903536B2
公开(公告)日：2005-06-07
申请号：US10712274
申请日：2003-11-12
申请人： Ta-yung Yang
发明人： Ta-yung Yang
IPC分类号： G05F1/40 , G05F1/44 , H02M1/00 , H02M1/42 , H02M3/00
CPC分类号： H02M1/4225 , H02M2001/0032 , H02M2001/007 , Y02B70/126 , Y02B70/16 , Y02P80/112
摘要： The present invention discloses a PFC-PWM controller having interleaved switching. A PFC stage generates a PFC signal for switching a PFC boost converter of a power converter. A PWM stage generates a PWM signal for switching a DC-to-DC converter of the power converter. The PFC-PWM controller includes a power manager for generating a discharge current and a burst-signal. Under light-load conditions, the discharge current decreases in proportion to a load of the power converter. The burst signal is utilized to disable the PFC signal in a suspended condition for power saving. A pulse width of the pulse-signal ensures a dead time to spread switching signals, such as the PFC and PWM signals, and reduces switching noise. When the discharge current decreases, the pulse width of the pulse-signal will increase and a frequency of the pulse-signal will decrease correspondingly. This further reduces power consumption under light-load and zero-load conditions.
摘要翻译：本发明公开了一种具有交错切换的PFC-PWM控制器。 PFC级产生用于切换功率转换器的PFC升压转换器的PFC信号。 PWM级产生用于切换功率转换器的DC-DC转换器的PWM信号。 PFC-PWM控制器包括用于产生放电电流和突发信号的功率管理器。在轻负载条件下，放电电流与功率转换器的负载成比例地下降。脉冲串信号用于禁用处于暂停状态的PFC信号以节省功率。脉冲信号的脉冲宽度确保了扩展切换信号（如PFC和PWM信号）的死区时间，并降低了开关噪声。当放电电流减小时，脉冲信号的脉冲宽度将增加，脉冲信号的频率将相应减小。这进一步降低了轻负载和零负载条件下的功耗。

152. 发明授权

US06903421B1 Isolated high-voltage LDMOS transistor having a split well structure 失效
标题翻译：隔离式高压LDMOS晶体管具有分裂阱结构
公开(公告)号：US06903421B1
公开(公告)日：2005-06-07
申请号：US10758919
申请日：2004-01-16
申请人： Chih-Feng Huang , Ta-yung Yang , Jenn-yu G. Lin , Tuo-Hsin Chien
发明人： Chih-Feng Huang , Ta-yung Yang , Jenn-yu G. Lin , Tuo-Hsin Chien
IPC分类号： H01L23/62 , H01L27/088 , H01L29/06 , H01L29/08 , H01L29/76 , H01L29/78 , H01L29/94
CPC分类号： H01L29/0634 , H01L29/0696 , H01L29/0886 , H01L29/42368 , H01L29/7816 , H01L2924/0002 , H01L2924/00
摘要： The isolated high-voltage LDMOS transistor according to the present invention includes a split N-well and P-well in the extended drain region. The P-well is split in the extended drain region of the N-well to form a split junction-field in the N-well. The split N-well and P-well deplete the drift region, which shifts the electric field maximum into the bulk of the N-well. This achieves a higher breakdown voltage and allows the N-well to have a higher doping density. Furthermore, the LDMOS transistor according to the present invention includes a N-well embedded beneath the source diffusion region. This creates a low-impedance path for the source region, which restricts the transistor current flow between the drain region and the source region.
摘要翻译：根据本发明的隔离的高电压LDMOS晶体管在扩展漏极区域中包括分裂的N阱和P阱。 P阱在N阱的扩展漏极区域中分裂，以在N阱中形成分离的连接场。分裂的N阱和P阱消耗了漂移区域，其将电场最大值移动到N阱的大部分中。这实现了更高的击穿电压并且允许N阱具有更高的掺杂密度。此外，根据本发明的LDMOS晶体管包括嵌入在源极扩散区之下的N阱。这为源极区域产生低阻抗路径，这限制了漏极区域和源极区域之间的晶体管电流。

153. 发明申请

US20170019016A9 START-UP CIRCUIT TO DISCHARGE EMI FILTER FOR POWER SAVING OF POWER SUPPLIES 审中-公开
标题翻译：启动电路放电电源滤波器用于节电
公开(公告)号：US20170019016A9
公开(公告)日：2017-01-19
申请号：US13870177
申请日：2013-04-25
申请人： SYSTEM GENERAL CORP.
发明人： WEI-HSUAN HUANG , MENG-JEN TSAI , CHIEN-YUAN LIN , MING-CHANG TSOU , CHUAN-CHANG LI , GWO-HWA WANG
IPC分类号： H02M1/14
CPC分类号： H02M1/14 , H02M1/126 , H02M1/36 , H02M2001/322
摘要： A start-up circuit to discharge EMI filter is developed for power saving. It includes a detection circuit detecting a power source for generating a sample signal. A sample circuit is coupled to the detection circuit for generating a reset signal in response to the sample signal. The reset signal is utilized for discharging a stored voltage of the EMI filter.
摘要翻译：开发了用于放电EMI滤波器的启动电路，用于省电。它包括检测电路以检测用于产生采样信号的电源。采样电路耦合到检测电路，用于响应于采样信号产生复位信号。复位信号用于放电EMI滤波器的存储电压。

154. 发明授权

US09337713B2 Sampling circuit for measuring the reflected voltage of transformer for power converter 有权
标题翻译：用于测量变压器反射电压的采样电路
公开(公告)号：US09337713B2
公开(公告)日：2016-05-10
申请号：US13848102
申请日：2013-03-21
申请人： SYSTEM GENERAL CORP.
发明人： Chin-Yen Lin , Jung-Sheng Chen , Li Lin , Yue-Hong Tang
IPC分类号： H02M3/335 , H02M1/08 , G01R31/40
CPC分类号： H02M1/08 , G01R31/40 , H02M3/33523
摘要： A sampling circuit of the power converter according to the present invention comprises an amplifier circuit receiving a reflected voltage for generating a first signal. A first switch and a first capacitor are utilized to generate a second signal in response to the reflected voltage. A sample-signal circuit generates a sample signal in response to a falling edge of a switching signal. The switching signal is generated in accordance with a feedback signal for regulating an output of the power converter. The feedback signal is generated in accordance with the second signal. The sample signal is utilized to control the first switch for sampling the reflected voltage. The sample signal is disabled once the first signal is lower than the second signal. The sampling circuit precisely samples the reflected voltage of the transformer of the power converter for regulating the output of the power converter.
摘要翻译：根据本发明的功率转换器的采样电路包括接收用于产生第一信号的反射电压的放大器电路。利用第一开关和第一电容器来响应于反射电压产生第二信号。采样信号电路响应于开关信号的下降沿产生采样信号。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。反馈信号根据第二信号产生。采样信号用于控制第一个开关以对反射电压进行采样。第一个信号低于第二个信号时，采样信号被禁止。采样电路对功率转换器的变压器的反射电压进行精确采样，以调节功率转换器的输出。

155. 发明授权

US09252674B2 Transistor gate driver with charge pump circuit for offline power converters 有权
标题翻译：晶体管栅极驱动器，带离子电源转换器的电荷泵电路
公开(公告)号：US09252674B2
公开(公告)日：2016-02-02
申请号：US14088628
申请日：2013-11-25
申请人： SYSTEM GENERAL CORP.
发明人： Ta-Yung Yang , Chin-Yen Lin , Jung-Sheng Chen , Li Lin
IPC分类号： H02M3/335 , H03K17/06
CPC分类号： H02M3/33523 , H03K17/063
摘要： A controller of the power converter according to the present invention comprises a gate driver. The gate driver generates a gate-drive signal. The gate-drive signal is coupled to drive a power transistor to switch a transformer of the power converter for regulating an output of the power converter. The gate driver has a charge-pump circuit for charging pump a voltage level of the gate-drive signal. Therefore, the gate-drive signal can fully turn on the power transistor.
摘要翻译：根据本发明的功率转换器的控制器包括栅极驱动器。栅极驱动器产生栅极驱动信号。栅极驱动信号被耦合以驱动功率晶体管以切换功率转换器的变压器，以调节功率转换器的输出。栅极驱动器具有电荷泵电路，用于对栅极驱动信号的电压电平进行充电。因此，栅极驱动信号可以完全打开功率晶体管。

156. 发明授权

US08816753B2 Trim circuit for power supply controller 有权
标题翻译：电源控制器微调电路
公开(公告)号：US08816753B2
公开(公告)日：2014-08-26
申请号：US13073862
申请日：2011-03-28
申请人： Rui-Hong Lu , Han-Chung Tai , Hsin-Chih Chiang
发明人： Rui-Hong Lu , Han-Chung Tai , Hsin-Chih Chiang
IPC分类号： H01H37/76 , G11C17/18
CPC分类号： G11C17/18 , G11C17/16
摘要： A trim circuit for a power supply controller includes: a control circuit; at least a capacitance type programmable circuit connection; and a switching circuit, under control of the control circuit, the switching circuit selectively coupling the capacitance type programmable circuit connection to anyone of an operation voltage and a programming voltage, for determining a programming state of the capacitance type programmable circuit connection.
摘要翻译：电源控制器的微调电路包括：控制电路; 至少电容式可编程电路连接; 以及开关电路，在所述控制电路的控制下，所述开关电路将所述电容式可编程电路连接选择性地耦合到任何操作电压和编程电压，以确定所述电容型可编程电路连接的编程状态。

157. 发明申请

US20140233275A1 ADAPTIVE ACTIVE CLAMP OF FLYBACK POWER CONVERTER WITH HIGH EFFICIENCY FOR HEAVY LOAD AND LIGHT LOAD 有权
标题翻译：适用于重负荷和轻负载的高效飞轮功率转换器的自适应有源钳位
公开(公告)号：US20140233275A1
公开(公告)日：2014-08-21
申请号：US14182442
申请日：2014-02-18
申请人： System General Corp.
发明人： TA-YUNG YANG , CHIH-HSIEN HSIEH , KAI-FANG WEI , JUNG-SHENG CHEN
IPC分类号： H02M3/335
CPC分类号： H02M3/33576 , H02M2001/0032 , Y02B70/16
摘要： A control circuit of a flyback power converter according to the present invention comprises a low-side transistor, an active-damper, a high-side drive circuit, and a controller. The low-side transistor is coupled to switch a transformer. The active-damper is coupled in parallel with the transformer. The high-side drive circuit is coupled to drive the active-clamper. The controller generates a switching signal and an active-clamp signal. The switching signal is coupled to drive the low-side transistor. The switching signal is generated in accordance with a feedback signal for regulating an output of the flyback power converter. The active-clamp signal is coupled to control the high-side drive circuit and the active-damper. The active-clamp signal is generated in response to a demagnetizing time of the transformer. The pulse number of the active-clamp signal is less than the pulse number of the switching signal in a light load condition.
摘要翻译：根据本发明的反激式功率转换器的控制电路包括低侧晶体管，主动阻尼器，高侧驱动电路和控制器。低侧晶体管被耦合以切换变压器。主动阻尼器与变压器并联。高侧驱动电路被耦合以驱动主动钳位器。控制器产生开关信号和有源钳位信号。开关信号被耦合以驱动低侧晶体管。根据用于调节反激式功率转换器的输出的反馈信号产生开关信号。有源钳位信号被耦合以控制高侧驱动电路和主动阻尼器。响应于变压器的消磁时间而产生有源钳位信号。有源钳位信号的脉冲数小于轻负载条件下的开关信号的脉冲数。

158. 发明授权

US08780515B2 Control circuit with protection circuit for power supply 有权
标题翻译：具有电源保护电路的控制电路
公开(公告)号：US08780515B2
公开(公告)日：2014-07-15
申请号：US13218650
申请日：2011-08-26
申请人： Chia-Liang Chien , Rui-Hong Lu
发明人： Chia-Liang Chien , Rui-Hong Lu
IPC分类号： H02H3/20 , H02H3/24 , H02H9/04
CPC分类号： H02H7/12 , H02M1/32 , H02M3/33507
摘要： A control circuit with protection circuit for power supply according to the present invention comprises a peak-detection circuit and a protection circuit. The peak-detection circuit detects an AC input voltage and generates a peak-detection signal. The protection circuit comprises an over-voltage protection circuit. The over-voltage protection circuit generates an over-voltage protection signal in response to the peak-detection signal. The protection circuit generates a reset signal to reduce the output of the power supply in response to the over-voltage protection signal. The present invention can protect the power supply in response to the AC input voltage effectively through the peak-detection circuit.
摘要翻译：根据本发明的具有电源保护电路的控制电路包括峰值检测电路和保护电路。峰值检测电路检测交流输入电压并产生峰值检测信号。保护电路包括过电压保护电路。过电压保护电路响应峰值检测信号产生过电压保护信号。保护电路产生复位信号，以响应过电压保护信号减小电源的输出。本发明可以通过峰值检测电路有效地响应于AC输入电压来保护电源。

159. 发明申请

US20140192565A1 CIRCUIT WITH SYNCHRONOUS RECTIFIER FOR CONTROLLING PROGRAMMABLE POWER CONVERTER 审中-公开
标题翻译：同步整流器控制可编程电源转换器的电路
公开(公告)号：US20140192565A1
公开(公告)日：2014-07-10
申请号：US14146022
申请日：2014-01-02
申请人： Chou-Sheng Wang
发明人： Chou-Sheng Wang
IPC分类号： H02M3/335
CPC分类号： H02M3/33592 , Y02B70/1475
摘要： A control circuit of a power converter and a method for controlling the power converter are provided. The control circuit of the power converter comprises a switching circuit and a temperature-sensing device. The switching circuit generates a switching signal in response to a feedback signal, and the switching circuit generates a current-sensing signal for regulating an output of the power converter. The temperature-sensing device generates a temperature signal in response to temperature of the temperature-sensing device.
摘要翻译：提供了功率转换器的控制电路和用于控制功率转换器的方法。功率转换器的控制电路包括开关电路和温度感测装置。开关电路响应于反馈信号产生开关信号，并且开关电路产生用于调节功率转换器的输出的电流感测信号。温度感测装置响应于温度感测装置的温度产生温度信号。

160. 发明授权

US08729930B2 Successive approximation multiplier-divider for signal process and method for signal process 有权
标题翻译：用于信号处理的逐次逼近乘法器和信号处理方法
公开(公告)号：US08729930B2
公开(公告)日：2014-05-20
申请号：US13666080
申请日：2012-11-01
申请人： System General Corp.
发明人： Ta-Yung Yang
IPC分类号： H03K25/00 , H03K23/00 , H03K21/00
CPC分类号： H03M1/66
摘要： A multiplier-divider circuit for signal process according to the present invention comprises a digital-to-analog converter, a first counter, a second counter, an oscillation circuit, and a control-logic apparatus. The digital-to-analog converter generates an output signal of the multiplier-divider circuit in accordance with the value of an input signal and a first signal. The first counter generates the first signal in response to a clock signal and the duty cycle of the input signal. The second counter generates a second signal in response to the clock signal and the period of the input signal. The oscillation circuit generates the clock signal in accordance with a third signal. The control-logic apparatus generates the third signal in response to the second signal and a constant. The first signal is correlated to the duty cycle of the input signal. The second signal is correlated to the period of the input signal.
摘要翻译：根据本发明的用于信号处理的乘法器分频器电路包括数模转换器，第一计数器，第二计数器，振荡电路和控制逻辑器件。数模转换器根据输入信号和第一信号的值产生乘法器 - 分频器电路的输出信号。第一计数器响应于时钟信号和输入信号的占空比产生第一信号。第二计数器响应于时钟信号和输入信号的周期产生第二信号。振荡电路根据第三信号产生时钟信号。控制逻辑装置响应于第二信号产生第三信号和常数。第一个信号与输入信号的占空比相关。第二信号与输入信号的周期相关。

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