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1. 发明授权

US08754617B2 Reverse shunt regulator 有权
标题翻译：反向分流调节器
公开(公告)号：US08754617B2
公开(公告)日：2014-06-17
申请号：US13326904
申请日：2011-12-15
申请人： Chien-Fu Tang , Issac Y. Chen , Jiun-Hung Pan
发明人： Chien-Fu Tang , Issac Y. Chen , Jiun-Hung Pan
IPC分类号： G05F1/613 , H02M3/335
CPC分类号： H02M3/33523
摘要： A reverse shunt regulator includes a MOSFET connected between a cathode and an anode, a switch and a current source serially connected between the cathode and the anode, and an error amplifier having a positive input node to receive an internal reference voltage, a negative input node connected to the reference electrode, and an output node connected to a control electrode of the MOSFET. When the voltage of the reference electrode is within a range, the larger the voltage of the reference electrode is, the less the current of the MOSFET is. Application of this reverse shunt regulator to a flyback converter for output feedback will reduce the power loss in a green mode of the flyback converter.
摘要翻译：反向并联调节器包括连接在阴极和阳极之间的MOSFET，串联连接在阴极和阳极之间的开关和电流源，以及具有用于接收内部参考电压的正输入节点的误差放大器，负输入节点连接到参考电极，以及连接到MOSFET的控制电极的输出节点。当参考电极的电压在一个范围内时，参考电极的电压越大，MOSFET的电流越小。将反向分流调节器应用于反激式转换器以进行输出反馈将降低反激式转换器的绿色模式下的功率损耗。

2. 发明授权

US09479063B2 Frequency jittering control circuit and method for a PFM power supply 有权
标题翻译：用于PFM电源的频率抖动控制电路和方法
公开(公告)号：US09479063B2
公开(公告)日：2016-10-25
申请号：US13567272
申请日：2012-08-06
申请人： Jiun-Hung Pan , Chien-Fu Tang , Isaac Y. Chen
发明人： Jiun-Hung Pan , Chien-Fu Tang , Isaac Y. Chen
IPC分类号： H02M3/335 , H02M1/44 , H02M3/156
CPC分类号： H03K7/08 , H02M1/08 , H02M1/44 , H02M3/156 , H02M3/33507 , H02M3/33515 , H02M3/33523 , H02M3/33546 , H02M2001/0009 , H02M2003/1566 , H03K2005/00019
摘要： A frequency jittering control circuit for a PFM power supply includes a pulse frequency modulator to generate a frequency jittering control signal to switch a power switch to generate an output voltage. The frequency jittering control circuit jitters an input signal or an on-time or off-time of the pulse frequency modulator to jitter the switching frequency of the power switch to thereby improve EMI issue.
摘要翻译：用于PFM电源的频率抖动控制电路包括脉冲频率调制器，用于产生频率抖动控制信号以切换电源开关以产生输出电压。频率抖动控制电路使脉冲频率调制器的输入信号或导通时间或关断时间抖动，以抖动电源开关的开关频率，从而改善EMI问题。

3. 发明申请

US20140286057A1 SWITCHING POWER CONVERTING APPARATUS, SWITCHING CONTROLLER FOR THE SAME, AND METHOD OF CONTROLLING A BIPOLAR JUNCTION TRANSISTOR OF THE SAME 有权
标题翻译：开关电源转换装置，其相互切换控制器及其控制双极性连接晶体管的方法
公开(公告)号：US20140286057A1
公开(公告)日：2014-09-25
申请号：US13847795
申请日：2013-03-20
申请人： JYUN-CHE HO , Jung-Pei Cheng , Yu-Chang Chen , Jiun-Hung Pan , Yung-Chih Lai , Isaac Y. Chen , Chien-Fu Tang
发明人： JYUN-CHE HO , Jung-Pei Cheng , Yu-Chang Chen , Jiun-Hung Pan , Yung-Chih Lai , Isaac Y. Chen , Chien-Fu Tang
IPC分类号： H02M3/335
CPC分类号： H02M3/33523 , H02M1/08 , H02M2001/0006 , H02M2001/0048 , Y02B70/1491
摘要： A switching power converting apparatus includes a coil unit, a bipolar junction transistor (BJT) controlling power transfer through the coil unit, and a current sensing resistor sensing a current flowing through the BJT so as to produce a sensed voltage thereacross. A switching controller includes a current source supplying a first current, a current generating module generating, based on an input voltage associated with the sensed voltage, a second current, which is proportional to the current flowing through the BJT, a multiplexing module selecting one of the first and second currents as an output current, and a driving module outputting, based on the output current, a driving current, which is proportional to the output current, to the BJT to thereby conduct the BJT.
摘要翻译：开关电源转换装置包括线圈单元，控制通过线圈单元的功率传输的双极结型晶体管（BJT），以及检测流过BJT的电流的电流感测电阻器，以便产生感测到的电压。开关控制器包括提供第一电流的电流源，电流产生模块，基于与检测到的电压相关联的输入电压，产生与流过BJT的电流成比例的第二电流;多路复用模块选择作为输出电流的第一和第二电流，以及基于输出电流将与输出电流成比例的驱动电流输出到BJT从而进行BJT的驱动模块。

4. 发明申请

US20130051089A1 FREQUENCY JITTERING CONTROL CIRCUIT AND METHOD FOR A PFM POWER SUPPLY 有权
标题翻译： PFM电源的频率抖动控制电路和方法
公开(公告)号：US20130051089A1
公开(公告)日：2013-02-28
申请号：US13567272
申请日：2012-08-06
申请人： Jiun-Hung Pan , Chien-Fu Tang , Isaac Y. Chen
发明人： Jiun-Hung Pan , Chien-Fu Tang , Isaac Y. Chen
IPC分类号： H02M3/335
CPC分类号： H03K7/08 , H02M1/08 , H02M1/44 , H02M3/156 , H02M3/33507 , H02M3/33515 , H02M3/33523 , H02M3/33546 , H02M2001/0009 , H02M2003/1566 , H03K2005/00019
摘要： A frequency jittering control circuit for a PFM power supply includes a pulse frequency modulator to generate a frequency jittering control signal to switch a power switch to generate an output voltage. The frequency jittering control circuit jitters an input signal or an on-time or off-time of the pulse frequency modulator to jitter the switching frequency of the power switch to thereby improve EMI issue.
摘要翻译：用于PFM电源的频率抖动控制电路包括脉冲频率调制器，用于产生频率抖动控制信号以切换电源开关以产生输出电压。频率抖动控制电路使脉冲频率调制器的输入信号或导通时间或关断时间抖动，以抖动电源开关的开关频率，从而改善EMI问题。

5. 发明授权

US09042126B2 Switching power converting apparatus, switching controller for the same, and method of controlling a bipolar junction transistor of the same 有权
标题翻译：开关电源转换装置，其开关控制器及其控制双极结型晶体管的方法
公开(公告)号：US09042126B2
公开(公告)日：2015-05-26
申请号：US13847795
申请日：2013-03-20
申请人： Jung-Pei Cheng , Yu-Chang Chen , Jiun-Hung Pan , Yung-Chih Lai , Isaac Y. Chen , Chien-Fu Tang , Jyun-Che Ho
发明人： Jung-Pei Cheng , Yu-Chang Chen , Jiun-Hung Pan , Yung-Chih Lai , Isaac Y. Chen , Chien-Fu Tang , Jyun-Che Ho
IPC分类号： H02M3/335 , H02M1/08 , H02M1/00
CPC分类号： H02M3/33523 , H02M1/08 , H02M2001/0006 , H02M2001/0048 , Y02B70/1491
摘要： A switching power converting apparatus includes a coil unit, a bipolar junction transistor (BJT) controlling power transfer through the coil unit, and a current sensing resistor sensing a current flowing through the BJT so as to produce a sensed voltage thereacross. A switching controller includes a current source supplying a first current, a current generating module generating, based on an input voltage associated with the sensed voltage, a second current, which is proportional to the current flowing through the BJT, a multiplexing module selecting one of the first and second currents as an output current, and a driving module outputting, based on the output current, a driving current, which is proportional to the output current, to the BJT to thereby conduct the BJT.
摘要翻译：开关电源转换装置包括线圈单元，控制通过线圈单元的功率传输的双极结型晶体管（BJT），以及检测流过BJT的电流的电流感测电阻器，以便产生感测到的电压。开关控制器包括提供第一电流的电流源，电流产生模块，基于与检测到的电压相关联的输入电压，产生与流过BJT的电流成比例的第二电流;多路复用模块选择作为输出电流的第一和第二电流，以及基于输出电流将与输出电流成比例的驱动电流输出到BJT从而进行BJT的驱动模块。

6. 发明授权

US08634212B2 Controller and controlling method for power converter 失效
标题翻译：电源转换器的控制器和控制方法
公开(公告)号：US08634212B2
公开(公告)日：2014-01-21
申请号：US13040601
申请日：2011-03-04
申请人： Chien-Fu Tang , Isaac Y. Chen , Jiun-Hung Pan
发明人： Chien-Fu Tang , Isaac Y. Chen , Jiun-Hung Pan
IPC分类号： H02M3/335
CPC分类号： H02M3/33507 , H02M2001/0009
摘要： A controller for a power converter is provided. The controller includes a sense current integrating circuit, a reference current integrating circuit and a drive signal generation circuit. The sense current integrating circuit performs an integrating operation to a sense current representative of a conduction current flowing through a power switch of the power converter and thereby outputs a first integrating result. The reference current integrating circuit performs another integrating operation to a reference current and thereby outputs a second integrating result. The drive signal generation circuit determines a switching period of the power switch according to a status of an output voltage of the power converter cooperative with a relative magnitude relationship between the first integrating result and the second integrating circuit. Furthermore, a controlling method for such power converter also is provided.
摘要翻译：提供一种用于功率转换器的控制器。控制器包括感测电流积分电路，参考电流积分电路和驱动信号发生电路。感测电流积分电路对表示流过功率转换器的电源开关的导通电流的感测电流进行积分运算，从而输出第一积分结果。参考电流积分电路对参考电流进行另一个积分运算，从而输出第二积分结果。驱动信号生成电路根据第一积分结果与第二积分电路之间的相对大小关系，根据功率转换器的输出电压的状态来决定电源开关的开关周期。此外，还提供了一种用于这种功率转换器的控制方法。

7. 发明申请

US20130070379A1 POWER REGULATOR WITH OVER CURRENT PROTECTION AND CONTROL CIRCUIT THEREOF AND METHOD OF OVER CURRENT PROTECTION 审中-公开
标题翻译：具有电流保护的电力调节器及其控制电路及其电流保护方法
公开(公告)号：US20130070379A1
公开(公告)日：2013-03-21
申请号：US13239362
申请日：2011-09-21
申请人： Jiun-Hung Pan , Chien-Fu Tang , Isaac Y. Chen
发明人： Jiun-Hung Pan , Chien-Fu Tang , Isaac Y. Chen
IPC分类号： H02H3/093
CPC分类号： H02H3/093 , H02H3/006
摘要： The present invention discloses a power regulator with over current protection (OCP), a control circuit thereof, and a method of over current protection. The power regulator with OCP includes: a primary circuit, a transformer, and a secondary circuit. The power regulator receives AC power, and generates secondary current which is supplied to a load circuit. The primary circuit includes a control circuit which includes: a switch control circuit, a first comparator circuit, a sample and hold circuit, and a compensation circuit which is coupled to the sample and hold circuit. The compensation circuit adaptively adjusts a threshold level of the OCP according to a current sense signal, or controls a delay time of an over current detection signal to compensate an error of the OCP threshold level, which is caused by the AC power, such that the primary current may have a peak corresponding to a predetermined setting.
摘要翻译：本发明公开了一种具有过电流保护功能的调节器（OCP）及其控制电路及过流保护方法。带有OCP的电源调节器包括：初级电路，变压器和次级电路。功率调节器接收交流电力，产生供给负载电路的二次电流。主电路包括控制电路，其包括：开关控制电路，第一比较器电路，采样保持电路和耦合到采样和保持电路的补偿电路。补偿电路根据电流检测信号自适应地调整OCP的阈值电平，或者控制过电流检测信号的延迟时间，以补偿由AC电源引起的OCP阈值电平的误差，使得初级电流可以具有对应于预定设置的峰值。

8. 发明授权

US09203295B2 Bleeding circuit and method for reducing power consumption of an EMI filter 有权
标题翻译：出血电路和降低EMI滤波器功耗的方法
公开(公告)号：US09203295B2
公开(公告)日：2015-12-01
申请号：US13611416
申请日：2012-09-12
申请人： Yen-Te Lee , Kuo-Chi Liu , Fu-Sheng Tsai , Kuang-Feng Li , Chung-Cheng Chang , Jiun-Hung Pan , Chien-Fu Tang , Isaac Y. Chen
发明人： Yen-Te Lee , Kuo-Chi Liu , Fu-Sheng Tsai , Kuang-Feng Li , Chung-Cheng Chang , Jiun-Hung Pan , Chien-Fu Tang , Isaac Y. Chen
IPC分类号： H02M1/36 , H02M1/12 , H02M1/00 , H02M1/32
CPC分类号： H02M1/126 , H02M2001/0048 , H02M2001/322 , Y02B70/1491
摘要： A bleeding circuit and method for an electromagnetic interference filter detect whether or not an AC power source connected to the electromagnetic interference filter is removed, establish a discharge path for discharging a capacitor of the electromagnetic interference filter once the connected AC power source is removed, and cut off the discharge path during the AC power source is in connection to the electromagnetic interference filter for decreasing power consumption of the electromagnetic interference filter.
摘要翻译：一种用于电磁干扰滤波器的泄放电路和方法，检测连接到电磁干扰滤波器的AC电源是否被去除，一旦连接的AC电源被去除，建立用于放电电磁干扰滤波器的电容器的放电路径，以及在交流电源期间切断放电路径与电磁干扰滤波器相连，以降低电磁干扰滤波器的功耗。

9. 发明申请

US20140176102A1 MIXED MODE COMPENSATION CIRCUIT 有权
标题翻译：混合模式补偿电路
公开(公告)号：US20140176102A1
公开(公告)日：2014-06-26
申请号：US14192431
申请日：2014-02-27
申请人： Chien-Fu Tang , Jiun-Hung Pan , Isaac Y. Chen
发明人： Chien-Fu Tang , Jiun-Hung Pan , Isaac Y. Chen
IPC分类号： G05F1/10
CPC分类号： G05F1/10 , H02M3/157 , H02M2001/0025 , H03M1/38
摘要： A mixed mode compensation circuit for a power converter generate a digital signal according to a reference signal and a feedback signal which is related to the output voltage of the power converter, convert the digital signal into a first analog signal, offset the first analog signal with a variable offset value to generate a second analog signal, and filter out high-frequency components of the second analog signal to generate a third analog signal for stable output voltage of the power converter. The mixed mode compensation does not require large capacitors, and thus the circuit can be integrated into an integrated circuit.
摘要翻译：用于功率转换器的混合模式补偿电路根据参考信号和与功率转换器的输出电压相关的反馈信号产生数字信号，将数字信号转换为第一模拟信号，将第一模拟信号与可变偏移值，用于产生第二模拟信号，并且滤除第二模拟信号的高频分量以产生用于稳定的功率转换器的输出电压的第三模拟信号。混合模式补偿不需要大电容器，因此电路可以集成到集成电路中。

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