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1. 发明授权

US5612862A Method and circuitry for controlling current reset characteristics of a magnetic amplifier control circuit 失效
标题翻译：用于控制磁放大器控制电路的电流复位特性的方法和电路
公开(公告)号：US5612862A
公开(公告)日：1997-03-18
申请号：US238779
申请日：1994-05-06
申请人： C. Lee Marusik , Edward Johnson
发明人： C. Lee Marusik , Edward Johnson
IPC分类号： H02M3/335
CPC分类号： H02M3/33561 , Y10S323/901
摘要： Magnetic amplifier post regulator (54) includes magnetic amplifier (42) that has a main magnetic amplifier winding, reset transistor (76), error amplifier (58), and auxiliary magnetic amplifier winding (220). Magnetic amplifier (42) controllably blocks a portion of the input voltage N.sub.s /N.sub.p V.sub.IN from winding (30) of transformer (18) in response to a controlled resetting condition and produces therefrom a magnetic amplifier output voltage (v.sub.2). Auxiliary output circuit (14) uses the magnetic amplifier (42) output voltage (v.sub.2) to produce the desired auxiliary output voltage (V.sub.OS). Reset transistor (76) controls reset current to magnetic amplifier (42) in response to an error signal from error amplifier (58). Error amplifier (58) compares auxiliary output voltage (V.sub.OS) to predetermined reference voltage (66) and generates the error signal from the comparison. Auxiliary magnetic amplifier winding (220) has a predetermined number of turns (N.sub.2) on magnetic amplifier (42) and increases the dynamic range of magnetic amplifier post regulator (54) for controlling reset transistor (76) and auxiliary output circuit (14) so that auxiliary output voltage (V.sub.OS) may attain a zero value while reset transistor (76) controls magnetic amplifier (42) in a blocking state (T.sub.B) during the entire on-time (T.sub.ON) of power switch transistor (24) of primary circuit (16).
摘要翻译：磁放大器后调节器（54）包括具有主磁放大器绕组，复位晶体管（76），误差放大器（58）和辅助磁放大器绕组（220）的磁放大器（42）。磁放大器（42）响应于受控的复位条件可控制地阻挡输入电压Ns / Np VIN的一部分从变压器（18）的绕组（30）产生磁放大器输出电压（v2）。辅助输出电路（14）使用磁放大器（42）输出电压（v2）产生所需的辅助输出电压（VOS）。响应于来自误差放大器（58）的误差信号，复位晶体管（76）控制到磁放大器（42）的复位电流。误差放大器（58）将辅助输出电压（VOS）与预定参考电压（66）进行比较，并从比较中产生误差信号。辅助磁放大器绕组（220）在磁放大器（42）上具有预定的匝数（N2），并且增加用于控制复位晶体管（76）和辅助输出电路（14）的磁放大器后调节器（54）的动态范围在主电路的功率开关晶体管（24）的整个导通时间（TON）期间，复位晶体管（76）控制处于阻塞状态（TB）的磁放大器（42）的辅助输出电压（VOS）可以达到零值（16）。

2. 发明授权

US5130561A Switching mode power supplies with controlled synchronization 失效
标题翻译：开关模式电源具有受控同步
公开(公告)号：US5130561A
公开(公告)日：1992-07-14
申请号：US574974
申请日：1990-08-29
申请人： Brent A. Elliott , C. Lee Marusik , Edward D. Johnson
发明人： Brent A. Elliott , C. Lee Marusik , Edward D. Johnson
IPC分类号： H02M1/14 , H02M3/28
CPC分类号： H02M1/14 , H02M3/285 , H02M2001/008 , Y10T307/406
摘要： Two pulse-width modulated power supplies are synchronized to operate at 180.degree. of phase shift to reduce the peak amplitude of the instantaneous current drawn from the DC input bus. The circuit includes means for disabling the synchronization upon detection of an undervoltage fault condition on the output of either supply. This feature allows frequency programming techniques to be used to provide foldback current limiting for either supply without affecting the operation of the other supply.
摘要翻译：两个脉冲宽度调制电源同步工作在180°的相移，以减少从直流输入总线吸取的瞬时电流的峰值幅度。该电路包括用于在检测到任一电源的输出上的欠电压故障状况时禁止同步的装置。该功能允许频率编程技术用于为任一电源提供折返电流限制，而不会影响另一个电源的操作。

3. 发明授权

US5945816A Self-biased power isolator system 失效
标题翻译：自偏置电力隔离系统
公开(公告)号：US5945816A
公开(公告)日：1999-08-31
申请号：US063719
申请日：1998-04-21
申请人： C. Lee Marusik
发明人： C. Lee Marusik
IPC分类号： G05F1/56 , H02J1/10 , H02J1/04
CPC分类号： G05F1/56 , H02J1/10 , Y10T307/729
摘要： A self-biased power isolator system is disclosed that provides a fault tolerant power system without the need for auxiliary power. Enhancement-mode MOSFET 120 includes a drain coupled to a first node, a source coupled to a second node, and a gate. Amplifier 50 includes inputs for comparing the voltages from the first and second nodes and an output coupled to the gate of MOSFET 120 by which amplifier 50 controls the state of enhancement-mode MOSFET 120. Amplifier 50 further includes a positive power input coupled to the second node and a negative power input coupled to ground. In one embodiment, the first node is operable to be coupled to a power supply 10 and the second node is operable to be coupled to a load 18. A further embodiment allows the architecture to be replicated, each coupled at the second node to provide an N+1 fault tolerant power system.
摘要翻译：公开了一种自偏置电力隔离器系统，其提供容错电力系统而不需要辅助电力。增强型MOSFET 120包括耦合到第一节点的漏极，耦合到第二节点的源极和栅极。放大器50包括用于比较来自第一和第二节点的电压的输入和耦合到MOSFET 120的栅极的输出，放大器50通过该输出控制增强型MOSFET 120的状态。放大器50还包括耦合到第二节点和耦合到地的负功率输入。在一个实施例中，第一节点可操作以耦合到电源10，并且第二节点可操作以耦合到负载18.另一实施例允许复制架构，每个耦合在第二节点处以提供 N + 1容错电源系统。

4. 发明授权

US5122726A Overvoltage protection for redundant power supplies 失效
标题翻译：冗余电源的过压保护
公开(公告)号：US5122726A
公开(公告)日：1992-06-16
申请号：US606406
申请日：1990-10-31
申请人： Brent A. Elliott , C. Lee Marusik , Edward D. Johnson
发明人： Brent A. Elliott , C. Lee Marusik , Edward D. Johnson
IPC分类号： G05F1/59 , H02H7/12 , H02J1/10
CPC分类号： G05F1/59 , H02H7/1213 , H02J1/10 , H02J1/102 , H02J1/108
摘要： Overvoltage and component failure protection for redundant current-mode controlled power supplies operating in parallel takes a supply off line when the supply drives the output bus to an overvoltage condition, without removing properly functioning supplies from the bus. The supply is also taken off line when either the error amplifier or the PWM fails.
摘要翻译：当电源将输出总线驱动到过电压状态时，过载和组件故障保护用于并联工作的冗余电流模式受控电源，将电源断开，而不会从总线中清除正常工作的电源。当误差放大器或PWM失败时，电源也会脱机。

5. 发明授权

US5521808A Method and circuitry for controlling start-up characteristics of a magnetic amplifier control circuit 失效
标题翻译：用于控制磁放大器控制电路起动特性的方法和电路
公开(公告)号：US5521808A
公开(公告)日：1996-05-28
申请号：US239157
申请日：1994-05-06
申请人： C. Lee Marusik , Edward Johnson
发明人： C. Lee Marusik , Edward Johnson
IPC分类号： H02M1/00 , H02M1/36 , H02M3/335 , H02M7/517
CPC分类号： H02M1/36 , H02M3/33561
摘要： Start-up control circuit (152) regulates the output voltage (V.sub.OS) of a power supply circuit (150). Magnetic amplifier control circuit (54) includes magnetic amplifier (42) and error detection circuitry (58, 68, and 70). Start-up control circuit (152) includes sensing circuitry (76 and 184) for generating sensing signals in response to voltage levels (V.sub.CC and V.sub.EE) in error detection circuitry (58, 68, and 70). Sensing signals indicate whether error detection circuitry (58, 68, and 70) voltage levels are sufficient to drive magnetic amplifier control circuit (54). Reset circuitry (190 and 192, and 194) associates with the sensing circuitry (76 and 184) for initially resetting magnetic amplifier (42) to prohibit output voltage (V.sub.OS) from power supply circuit (150) when the sensing signals indicate that voltage levels are insufficient for error detection circuitry to drive magnetic amplifier control circuit (54). Reset circuitry (190 192, and 194) further associates with reset control transistor (76) for controllably decreasing the reset of magnetic amplifier (42). Reset circuitry (190, 192, and 194) further associates with magnetic amplifier control circuit (54) for shifting control of magnetic amplifier (42) to magnetic amplifier control circuit (54) as voltage levels increase sufficiently for the error detection circuitry (58, 68, 70) to drive magnetic amplifier control circuit (54).
摘要翻译：启动控制电路（152）调节电源电路（150）的输出电压（VOS）。磁放大器控制电路（54）包括磁放大器（42）和误差检测电路（58,68和70）。启动控制电路（152）包括用于响应于错误检测电路（58,68和70）中的电压电平（VCC和VEE）产生感测信号的感测电路（76和184）。感测信号指示误差检测电路（58,68和70）的电压电平是否足以驱动磁放大器控制电路（54）。当感测信号指示电压电平（190和192和194）与感测电路（76和184）相关联时，用于初始复位磁放大器（42）以禁止来自电源电路（150）的输出电压（VOS）不足以用于驱动磁放大器控制电路（54）的错误检测电路。复位电路（190,192和194）还与复位控制晶体管（76）相关联，用于可控地减小磁放大器（42）的复位。复位电路（190,192和194）还与磁放大器控制电路（54）相关联，用于将磁放大器（42）的控制转移到磁放大器控制电路（54），因为电压电平足够增加用于错误检测电路 68，70）以驱动磁放大器控制电路（54）。

6. 发明授权

US4520275A Master and slave power supply control circuits 失效
标题翻译：主从电源控制电路
公开(公告)号：US4520275A
公开(公告)日：1985-05-28
申请号：US566358
申请日：1983-12-28
申请人： C. Lee Marusik
发明人： C. Lee Marusik
IPC分类号： H02M3/28 , H05K1/02 , H05K1/14 , H05K10/00 , H02G9/00
CPC分类号： H05K10/00 , H02M3/28 , H05K1/0263 , H05K1/14 , Y10T307/615 , Y10T307/724 , Y10T307/729
摘要： A circuit for controlling the connection of master and slave power supplies to a load. In a preferred embodiment, identical circuits on two printed circuit boards are interconnected on the backplane to make one a master circuit and the other a slave circuit, controlled by the master. Means are included in the master and slave circuits for responding to undervoltage and overload conditions to switch the slave power supply on-line and the master supply off-line. Means are further provided to respond to an overload condition resulting from a failure in the master power supply itself by holding the master supply off-line. The circuit avoids disadvantages associated with prior art systems using isolation diodes.
摘要翻译：用于控制主电源和从电源连接到负载的电路。在优选实施例中，两个印刷电路板上的相同电路在背板上相互连接，从而使主电路成为主电路，另一个由主电路控制。主电路和从电路中包含的方法用于响应欠压和过载条件，用于在线切换从电源，离线主电源。进一步提供了通过将主电源离线保持来响应由主电源本身故障引起的过载状况的手段。该电路避免了与使用隔离二极管的现有技术系统相关的缺点。

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