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1. 发明授权

US06646895B1 Bias supply circuit and a switching power supply employing the same 有权
标题翻译：偏置电源电路和采用其的开关电源
公开(公告)号：US06646895B1
公开(公告)日：2003-11-11
申请号：US10057326
申请日：2001-10-25
申请人： Mark E. Jacobs , Robert J. Murphy, Jr. , Ramanujam Ramabhadran , Thomas G. Wang , Shashank S. Wekhande
发明人： Mark E. Jacobs , Robert J. Murphy, Jr. , Ramanujam Ramabhadran , Thomas G. Wang , Shashank S. Wekhande
IPC分类号： H02M3335
CPC分类号： H02M3/33561 , H02M3/33569 , H02M2001/0006
摘要： A bias supply circuit and a method of operating a bias supply circuit for use with a switching power supply employing a main switch and an auxiliary switch and having an input voltage and a voltage across a clamp capacitor coupled to a transformer. In one embodiment, the bias supply circuit includes a bias supply winding associated with the transformer and configured to provide a first voltage dependent on at least one of the input voltage and the voltage across the clamp capacitor during a conduction period of the main switch or the auxiliary switch. Additionally, the bias supply circuit further includes a bias supply storage capacitor coupled to the bias supply winding and configured to provide a second voltage dependent on at least another of the input voltage and the voltage across the clamp capacitor during a conduction period of another of the main switch or the auxiliary switch. A sum of the first voltage and the second voltage provides a bias supply voltage.
摘要翻译：一种偏置电源电路和一种用于与采用主开关和辅助开关的开关电源一起使用并具有耦合到变压器的钳位电容器两端的输入电压和电压的偏置电源电路的方法。在一个实施例中，偏置电源电路包括与变压器相关联的偏置电源绕组，并且被配置为在主开关的导通时段期间提供取决于钳位电容器两端的输入电压和电压中的至少一个的第一电压，辅助开关此外，偏置电源电路还包括耦合到偏置电源绕组的偏置电源存储电容器，并且被配置为在另一个的另一个的导通周期期间提供取决于钳位电容器两端的输入电压和电压中的至少另一个的第二电压主开关或辅助开关。第一电压和第二电压的总和提供偏置电源电压。

2. 发明授权

US5572416A Isolated input current sense means for high power factor rectifier 失效
标题翻译：隔离输入电流检测装置用于高功率因数整流器
公开(公告)号：US5572416A
公开(公告)日：1996-11-05
申请号：US255624
申请日：1994-06-09
申请人： Mark E. Jacobs , Richard W. Farrington , Robert J. Murphy, Jr.
发明人： Mark E. Jacobs , Richard W. Farrington , Robert J. Murphy, Jr.
IPC分类号： H02M7/06 , H02M1/00 , H02M1/42 , H02M3/155 , H02M3/156 , H02M7/12 , H02M7/217 , H03F1/34 , H02M7/04 , G05F1/625
CPC分类号： H02M1/4225 , H02M3/156 , H02M2001/0009 , Y02B70/126 , Y02P80/112
摘要： A converter for enhancing power factor utilizes a line sense winding magnetically coupled to sense a voltage across a line inductor in the input of a high power factor power converter. This winding in the illustrative embodiment is typically a single turn. This winding provides a measurement of the derivative (with respect to time) of the line current, and a specially designed integrator connected to the winding provides the estimate of the line current. An integrator is operative to accurately estimate the current by using known properties of this current to prevent mismeasurement due to reconstructing the "constant of integration" and any small biases in the integrator which normally cause errors.
摘要翻译：用于增强功率因数的转换器利用磁耦合的线路感测绕组来感测高功率因数功率转换器输入端的线路电感器上的电压。在说明性实施例中的该绕组通常是单回转。该绕组提供线路电流的导数（相对于时间）的测量，并且连接到绕组的专门设计的积分器提供线路电流的估计。积分器可以通过使用该电流的已知属性来准确地估计电流，以防止由于重建“积分常数”而导致的误测量以及通常导致误差的积分器中的任何小偏差。

3. 发明授权

US06606258B1 Voltage reference translation system and an electronic circuit employing the same 有权
标题翻译：电压参考平移系统和采用该电压电路的电子电路
公开(公告)号：US06606258B1
公开(公告)日：2003-08-12
申请号：US10004420
申请日：2001-11-02
申请人： Mark E. Jacobs , Thomas G. Wang
发明人： Mark E. Jacobs , Thomas G. Wang
IPC分类号： H02J102
CPC分类号： H01F37/00 , H02M1/14 , H02M3/28
摘要： For use with an electronic circuit having first and second reference nodes, a voltage reference translation system and a method of converting signals between the first and second reference nodes are provided. In one embodiment, the voltage reference translation system includes first and second inductors coupled to a common magnetic core and interposed between the first and second reference nodes. Additionally, the voltage reference translation system includes a conversion path coupled through a portion of the common magnetic core configured to substantially convert a signal associated with the first reference node into a signal associated with the second reference node.
摘要翻译：为了与具有第一和第二参考节点的电子电路一起使用，提供了电压参考翻译系统和在第一和第二参考节点之间转换信号的方法。在一个实施例中，电压参考平移系统包括耦合到公共磁芯并插入在第一和第二参考节点之间的第一和第二电感器。另外，电压参考平移系统包括通过公共磁芯的一部分耦合的转换路径，其被配置为将与第一参考节点相关联的信号基本上转换为与第二参考节点相关联的信号。

4. 发明授权

US06025999A Dual output power supply and method of operation thereof 失效
标题翻译：双输出电源及其操作方法
公开(公告)号：US06025999A
公开(公告)日：2000-02-15
申请号：US190953
申请日：1998-11-12
申请人： Richard W. Farrington , Mark E. Jacobs , Hengchun Mao , Vijayan J. Thottuvelil
发明人： Richard W. Farrington , Mark E. Jacobs , Hengchun Mao , Vijayan J. Thottuvelil
IPC分类号： H02M3/28 , H02M3/335 , H02M7/48
CPC分类号： H02M7/4807 , H02M3/33561 , H02M2001/007 , H02M2001/009
摘要： A power supply and a method of operating the same. In one embodiment, the power supply includes: (1) a DC-DC converter having an isolation transformer that conveys an alternating voltage of about a first frequency between a primary winding and at least one secondary winding thereof and (2) a four-quadrant inverter, coupled to one of the at least secondary winding, that converts a portion of the alternating voltage into a waveform having about a second frequency that is less than the first frequency, including: (2a) a bi-directional switch, coupled between an input and an output of the four-quadrant inverter and (2b) a controller, coupled to the switch, that activates the switch to couple the input to the output during a portion of a switching cycle of the alternating voltage to change voltages in the waveform.
摘要翻译：电源及其操作方法。在一个实施例中，电源包括：（1）具有隔离变压器的DC-DC转换器，其在初级绕组和至少一个次级绕组之间传送大约第一频率的交流电压，以及（2）四象限逆变器，耦合到所述至少次级绕组中的一个，其将所述交流电压的一部分转换成具有小于所述第一频率的约第二频率的波形，所述第二频率包括：（2a）双向开关，输入和四象限逆变器的输出，以及（2b）耦合到开关的控制器，其在交流电压的开关周期的一部分期间激活开关以将输入耦合到输出，以改变波形中的电压。

5. 发明授权

US5627455A Boost topology with two outputs for power factor correction application 失效
标题翻译：具有两个输出的升压拓扑用于功率因数校正应用
公开(公告)号：US5627455A
公开(公告)日：1997-05-06
申请号：US344309
申请日：1994-11-22
申请人： Mark E. Jacobs , Richard W. Farrington
发明人： Mark E. Jacobs , Richard W. Farrington
IPC分类号： H02J1/00 , H02M1/00 , H02M1/42 , H02M3/158 , G05F1/10 , G05F1/656 , H02M5/42 , H02M7/68
CPC分类号： H02M1/4208 , H02M3/158 , H02M2001/009 , Y02B70/126 , Y02P80/112
摘要： A split boost converter is disclosed herein, suitable for both single phase and three phase AC input applications. It provides two equal but unparallelable output voltages stored on two separate independent output capacitors. The implementation supports two modes of operation in which two power switches are operated simultaneously or alternately. Each mode maintains the advantage of a reduced boost inductor size. In the first mode the charging of the capacitors in parallel circuits and their discharge in a series connection substantially reduces ripple current in the inductor permitting the user of a smaller inductor. In the second mode the capacitors are charged and discharged in differing time intervals achieving a similar result. The circuit is operable with input voltages which must exceed the voltages of its two output capacitors.
摘要翻译：本文公开了一种分离升压转换器，适用于单相和三相交流输入应用。它提供两个相等但不可平行的输出电压存储在两个独立的独立输出电容器上。该实现支持两种电源开关同时或交替操作的两种操作模式。每种模式保持降低升压电感器尺寸的优点。在第一种模式下，并联电路中的电容器的充电及其串联的放电大大减少了电感器中的纹波电流，从而允许用户使用较小的电感器。在第二模式中，电容器以不同的时间间隔进行充电和放电，实现类似的结果。该电路的输入电压必须超过其两个输出电容器的电压。

6. 发明授权

US5363289A Control apparatus for limiting voltage on a core reset capacitor 失效
标题翻译：用于限制磁芯复位电容器电压的控制装置
公开(公告)号：US5363289A
公开(公告)日：1994-11-08
申请号：US991041
申请日：1992-12-15
申请人： Mark E. Jacobs
发明人： Mark E. Jacobs
IPC分类号： H02M3/28 , H02M3/335
CPC分类号： H02M3/33569
摘要： A power converter circuit requiting the periodic reset of a core of the power transformer includes a control circuit operative to alter a response of the converters voltage regulation feedback control to limit and/or control the power switch duty cycle to regulate a voltage of the reset capacitor whenever the reset capacitor sustains a voltage above a preset threshold.
摘要翻译：要求电力变压器的铁心的周期性复位的功率转换器电路包括控制电路，其操作以改变转换器电压调节反馈控制的响应，以限制和/或控制功率开关占空比以调节复位电容器的电压每当复位电容器保持高于预设阈值的电压时。

7. 发明申请

US20080101099A1 Ripple Reduction for Switch-Mode Power Conversion 失效
标题翻译：开关模式电源转换的纹波降低
公开(公告)号：US20080101099A1
公开(公告)日：2008-05-01
申请号：US11854236
申请日：2007-09-12
申请人： Mark E. Jacobs
发明人： Mark E. Jacobs
IPC分类号： H02M1/14
CPC分类号： H02M7/06 , H02M1/14
摘要： A power converter includes an isolated or a nonisolated current-doubler rectification circuit including two magnetic circuit elements, each magnetic circuit element formed with a primary winding and a voltage-sensing winding. The primary windings are coupled in series. The voltage-sensing windings are also coupled in series but with a coupling sense opposite from that of the primary windings. A properly sized inductor and capacitor are coupled in series with the voltage-sensing windings to produce a ripple-cancellation current with slope opposite to a net slope error of currents produced in the two magnetic circuit elements. The current-doubler rectification circuit is preferably coupled to a rectangular ac input waveform. By sensing a scaled voltage difference between two magnetic circuit elements, a very low level of output ripple is produced by the circuit with very low power losses over a range of operating conditions.
摘要翻译：功率转换器包括隔离或非隔离倍流整流电路，其包括两个磁路元件，形成有初级绕组和电压感测绕组的每个磁路元件。初级绕组串联耦合。电压感测绕组也是串联耦合的，但具有与初级绕组相反的耦合意义。适当尺寸的电感器和电容器与电压感测绕组串联耦合以产生纹波消除电流，其斜率与两个磁路元件中产生的电流的净斜率误差相反。电流倍增整流电路优选地耦合到矩形交流输入波形。通过感测两个磁路元件之间的缩放电压差，在一定范围的工作条件下，具有极低功率损耗的电路产生非常低的输出纹波电平。

8. 发明授权

US06882548B1 Auxiliary active clamp circuit, a method of clamping a voltage of a rectifier switch and a power converter employing the circuit or method 有权
标题翻译：辅助有源钳位电路，钳位整流器开关电压的方法和采用该电路或方法的功率转换器
公开(公告)号：US06882548B1
公开(公告)日：2005-04-19
申请号：US10373418
申请日：2003-02-24
申请人： Mark E. Jacobs , Subarna Pal , John F. Steel
发明人： Mark E. Jacobs , Subarna Pal , John F. Steel
IPC分类号： H02M1/34 , H02M3/335 , H03K17/0814
CPC分类号： H02M1/34 , H02M3/33592 , H02M2001/342 , H03K17/08142 , Y02B70/1475 , Y02B70/1491
摘要： The present invention is directed to an auxiliary active clamp circuit and a method of clamping a voltage of a rectifier switch associated with a power converter. The power converter includes a main active clamp circuit associated with a main power switch coupled to a primary winding of a transformer and a rectifier switch coupled to a secondary winding of the transformer. The main power switch conducts during a main conduction period of the power converter and the rectifier switch conducts during an auxiliary conduction period of the power converter. In one embodiment, the auxiliary active clamp circuit includes an auxiliary clamp capacitor, coupled across the rectifier switch, that stores a clamping voltage substantially equal to an off-state voltage of the rectifier switch. The auxiliary active clamp circuit also includes an auxiliary clamp switch, coupled in series with the auxiliary clamp capacitor, that receives a drive signal from a secondary winding and conducts during the main conduction period thereby clamping a voltage across the rectifier switch at about the clamping voltage.
摘要翻译：本发明涉及一种辅助有源钳位电路和一种钳位与功率转换器相关联的整流器开关的电压的方法。功率转换器包括与耦合到变压器的初级绕组的主电源开关和耦合到变压器的次级绕组的整流器开关相关联的主有效钳位电路。主电源开关在电源转换器的主导通期间导通，整流开关在电源转换器的辅助导通期间导通。在一个实施例中，辅助有源钳位电路包括耦合在整流器开关上的辅助钳位电容器，其存储基本上等于整流器开关的截止电压的钳位电压。辅助有源钳位电路还包括与辅助钳位电容器串联耦合的辅助钳位开关，其接收来自次级绕组的驱动信号，并在主导通时段期间导通，由此在钳位电压下夹紧整流器开关上的电压。

9. 发明授权

US06400580B1 System and method for reducing a DC magnetic flux bias in a transformer and power converter employing the same 失效
标题翻译：用于减小变压器中的直流磁通偏压的系统和方法以及使用该变压器的功率转换器
公开(公告)号：US06400580B1
公开(公告)日：2002-06-04
申请号：US09685540
申请日：2000-10-10
申请人： Wayne C. Bowman , Mark E. Jacobs , Allen F. Rozman
发明人： Wayne C. Bowman , Mark E. Jacobs , Allen F. Rozman
IPC分类号： H02M3335
CPC分类号： H02M3/337 , H02M2007/4803
摘要： A system and method for reducing a DC magnetic flux bias in a transformer and a power converter employing the system or the method. The power converter has a full bridge switching circuit coupled across a primary winding of a transformer and a hybridge rectifier circuit coupled across a secondary winding of the transformer. The transformer is subject to the DC magnetic flux bias as a result of an imbalance in the hybridge rectifier circuit. In one embodiment, the system includes: (1) a sensor configured to develop a signal representing the DC magnetic flux bias in the transformer; and (2) a controller, coupled to the sensor, configured to operate the full bridge switching circuit as a function of the signal thereby to reduce the DC magnetic flux bias.
摘要翻译：一种用于减小变压器中的DC磁通偏压的系统和方法，以及采用该系统或方法的功率转换器。功率转换器具有耦合在变压器的初级绕组上的全桥开关电路和耦合在变压器的次级绕组上的布桥整流器电路。变压器由于布桥整流电路的不平衡而受到直流磁通偏压的影响。在一个实施例中，系统包括：（1）被配置为形成表示变压器中的DC磁通量偏置的信号的传感器; 和（2）耦合到传感器的控制器，被配置为根据信号操作全桥开关电路，从而减小DC磁通偏压。

10. 发明授权

US06178098B1 Phase-shifted post-regulator, method of operation thereof and power converter employing the same 有权
标题翻译：相移后稳压器，其操作方法和使用该调整器的功率转换器
公开(公告)号：US06178098B1
公开(公告)日：2001-01-23
申请号：US09401728
申请日：1999-09-22
申请人： Jin He , Mark E. Jacobs
发明人： Jin He , Mark E. Jacobs
IPC分类号： H02M3335
CPC分类号： H02M3/33561 , H02M2001/0093
摘要： For use in a power converter having an inverter coupled to an output rectifier, a post-regulator, a method of operating the same and a power converter incorporating the post-regulator or the method. In one embodiment: (1) a switching circuit, having at least one controllable switch and coupled an output of the power converter, that receives an output voltage from the power converter and produces a phase-shifted waveform therefrom and (2) a transformer, having a primary winding coupled to the switching circuit and a secondary winding coupled to the rectifier, that delivers the phase-shifted waveform to the rectifier to regulate the power converter, thereby allowing the inverter to be unregulated.
摘要翻译：用于具有耦合到输出整流器的逆变器的功率转换器，后调节器，其操作方法以及并入后稳压器或方法的功率转换器。在一个实施例中：（1）开关电路，具有至少一个可控开关并耦合功率转换器的输出，其接收来自功率转换器的输出电压，并产生相移波形，以及（2）变压器，具有耦合到开关电路的初级绕组和耦合到整流器的次级绕组，其将相移波形传送到整流器以调节功率转换器，从而允许逆变器不受调节。

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