公开(公告)号：US5157592A

公开(公告)日：1992-10-20

申请号：US776946

申请日：1991-10-15

Applicant: Michael M. Walters

Inventor： Michael M. Walters

IPC: G05F1/38 ,  H02M7/5387

CPC classification number: G05F1/38 ,  H02M7/53871 ,  H02M2007/53878 ,  Y02B70/1441

Abstract: A circulating current control for a phase shifted full bridge inverter is provided to control the powder dissipation and efficiency of the converter responsive to changing operating conditions. The minimum circulating current necessary for zero-voltage switching is regulated by adjusting the reset current of saturable reactors. Therefore, zero-voltage switching can be achieved with a minimum of condition losses. The converters efficiency is optimized over a wide range of operating conditions.

Abstract translation: 提供了一种用于相移全桥逆变器的循环电流控制器，以响应于变化的操作条件来控制转换器的粉末耗散和效率。 通过调整饱和电抗器的复位电流来调节零电压开关所需的最小循环电流。 因此，可以以最小的条件损耗实现零电压开关。 转换器效率在广泛的工作条件下得到优化。

公开(公告)号：US4866366A

公开(公告)日：1989-09-12

申请号：US149146

申请日：1988-01-27

Applicant: Fumio Kitamura ,  Toshitsugu Tajima

Inventor： Fumio Kitamura ,  Toshitsugu Tajima

IPC: H01F41/00 ,  G01R31/42 ,  G01R33/12 ,  G01R35/02 ,  G05F1/38

CPC classification number: G01R31/42 ,  G01R35/02 ,  G05F1/38

Abstract: In a power supply apparatus for a load such a toroidal core testing apparatus, an input current is supplied to the load, and an output voltage of the load is obtained. A current corresponding to one part of the output voltage is negatively fed back to the input current.

公开(公告)号：US4460955A

公开(公告)日：1984-07-17

申请号：US452139

申请日：1982-12-22

Applicant: Masayuki Hattori ,  Shigeo Nakamura

Inventor： Masayuki Hattori ,  Shigeo Nakamura

IPC: G05F1/32 ,  G05F1/38 ,  G05F1/44 ,  H02P13/24

CPC classification number: G05F1/38 ,  G05F1/44

Abstract: A stabilizing power supply apparatus including, as a switching element, a magnetic amplifier supplied with a rectangular wave voltage produced by an inverter and controlled by a reset current. An error sensing circuit senses a difference between the output voltage of the magnetic amplifier and a reference voltage to produce an error signal corresponding to the sensed difference. An amplifier circuit amplifies the error signal into the reset current for the magnetic amplifier. The amplifier circuit includes a NPN-type transistor for amplifying the control current into the reset current and first and second diodes. The first diode has an anode terminal connected to a negative power supply line and a cathode terminal connected to the collector of the transistor in order that charge will not accumulate on the transistor base. The second diode has an anode terminal connected to the emitter of the transistor and a cathode terminal connected to the magnetic amplifier. The reset current is applied to the magnetic amplifier through the second diode to hold the output voltage of the apparatus constant by regulating the on/off timing of the magnetic amplifier in accordance with the difference between the magnitude of the output voltage and the magnitude of the reference voltage.

Abstract translation: 一种稳定电源装置，包括作为开关元件的提供有由逆变器产生的矩形波电压的磁放大器，并由复位电流控制。 误差检测电路检测磁放大器的输出电压和参考电压之间的差异，以产生对应于所检测差值的误差信号。 放大器电路将误差信号放大到磁放大器的复位电流。 放大器电路包括用于将控制电流放大到复位电流的NPN型晶体管以及第一和第二二极管。 第一二极管具有连接到负电源线的阳极端子和连接到晶体管的集电极的阴极端子，以使电荷不会积聚在晶体管基极上。 第二二极管具有连接到晶体管的发射极的阳极端子和连接到磁放大器的阴极端子。 通过第二二极管将复位电流施加到磁放大器，以通过根据输出电压的幅度和输出电压的大小之间的差来调节磁放大器的接通/断开定时来保持设备的输出电压恒定 参考电压。

公开(公告)号：US4419723A

公开(公告)日：1983-12-06

申请号：US316496

申请日：1981-10-29

Applicant: Thomas G. Wilson, Jr.

Inventor： Thomas G. Wilson, Jr.

IPC: H02M3/28 ,  G05F1/38 ,  H02M3/335

CPC classification number: G05F1/38 ,  H02M3/33561

Abstract: A multiple-output DC-DC converter has an electronically controllable reactor (64,66) connected in series with each output circuit. In response to variations in voltage of the output circuits (80,82), control signals are fed back to vary the permeance of the electronically controllable reactor (64,66) in each output circuit. The voltage in any output circuit is thereby made independent of input voltage variations and load fluctuations in any other output circuit.

Abstract translation: 多输出DC-DC转换器具有与每个输出电路串联连接的电子可控电抗器（64,66）。 响应于输出电路（80,82）的电压变化，控制信号被反馈以改变每个输出电路中电子可控电抗器（64,66）的磁导。 因此，任何输出电路中的电压独立于任何其它输出电路中的输入电压变化和负载波动。

公开(公告)号：US4387324A

公开(公告)日：1983-06-07

申请号：US321957

申请日：1981-11-16

Applicant: Donald H. Willis

Inventor： Donald H. Willis

IPC: H04N3/18 ,  G05F1/38 ,  H04N3/185 ,  H04N5/00 ,  H01J29/70

CPC classification number: H04N3/185 ,  G05F1/38

Abstract: In a television receiver regulated power supply that is responsive to the state of a remote on/off command signal, the AC mains supply voltage is connected to the input terminals of a bridge rectifier through the mechanical switch portion of an on/off relay. A remote control circuit energizes the relay coil to close the mechanical switch upon receipt of the on-state command signal. The bridge rectifier then develops an unregulated DC voltage that is applied to a high frequency inverter for developing an alternating polarity input voltage. The alternating polarity input voltage is applied to a self-regulating or ferroresonant power supply circuit to produce regulated output voltages for various television receiver load circuits such as the ultor load and the horizontal deflection circuit. During a fault operating condition of the self-regulating circuit wherein the output voltages would tend to increase excessively, a protection circuit detects the occurrence of the fault operating condition and disables the remote control circuit to deenergize the relay coil and open the mechanical on/off switch. Operation of the self-regulating circuit stops to thereby deenergize the television receiver load circuits.

Abstract translation: 在响应远程开/关命令信号的状态的电视接收机稳压电源中，AC电源电压通过开/关继电器的机械开关部分连接到桥式整流器的输入端子。 遥控电路为继电器线圈通电，在接收到通态指令信号时关闭机械开关。 然后，桥式整流器产生一个未调节的直流电压，该直流电压被施加到高频逆变器上，用于开发交流极性输入电压。 交流极性输入电压被施加到自调节或铁磁谐振电源电路，以产生用于各种电视接收机负载电路（例如阳极阳极负载和水平偏转电路）的调节输出电压。 在自调节电路的故障运行状态下，输出电压会过度增加，保护电路检测故障运行状态的发生，禁止遥控电路使继电器线圈断电，并打开机械开/关 开关。 自动调节电路的动作停止，从而使电视接收器负载电路断电。

公开(公告)号：US4343034A

公开(公告)日：1982-08-03

申请号：US179417

申请日：1980-08-18

Applicant: Richard B. Wells ,  Chester G. Haibel, Jr. ,  Richard L. Hilton

Inventor： Richard B. Wells ,  Chester G. Haibel, Jr. ,  Richard L. Hilton

IPC: G05F1/38 ,  G05F1/563 ,  H02P13/24 ,  G05F1/22

CPC classification number: G05F1/38 ,  G05F1/563

Abstract: A linear power supply is preregulated to compensate for variations in load and power line voltage. The inductance on the primary side of the power supply step down transformer is varied by a current controlled inductor to efficiently maintain the desired power supply output voltage. A variable current is supplied to the inductor by a d.c. power source under control of an integrator which monitors output voltage fluctuations. In one embodiment of the invention, a voltage selector is included for use with power supplies which provide more than one output voltage. This selector automatically selects the most heavily loaded output voltage for control of the inductor.

Abstract translation: 预调节线性电源以补偿负载和电源线电压的变化。 电源降压变压器的初级侧的电感由电流控制电感器变化，以有效地保持所需的电源输出电压。 可变电流通过直流电源提供给电感器。 电源在监控输出电压波动的积分器的控制下。 在本发明的一个实施例中，包括电压选择器以用于提供多于一个输出电压的电源。 该选择器自动选择最负载的输出电压来控制电感。

公开(公告)号：US4288737A

公开(公告)日：1981-09-08

申请号：US40857

申请日：1979-05-21

Applicant: James E. McClain ,  Howard L. Scott

Inventor： James E. McClain ,  Howard L. Scott

IPC: G05F1/38 ,  G05F1/34

CPC classification number: G05F1/38

Abstract: Disclosed is a voltage regulation-unbalanced voltage compensation control connected intermediate the supply and load of the polyphase system, the control including separately adjustable variable impedance elements provided by saturable core reactors for independently varying the voltage drops between the supply and load terminals for each phase. The independent adjustment of the variable impedance elements is effected by a feedback control network varying the magnitude of current supplied to the DC control winding of each saturable core reactor in response to the existing load voltages across the load terminals.

Abstract translation: 公开了在多相系统的供电和负载之间连接的电压调节不平衡电压补偿控制，该控制包括由可饱和核心电抗器提供的单独调节的可变阻抗元件，用于独立地改变每相的供电端子和负载端子之间的电压降。 可变阻抗元件的独立调整由反馈控制网络来实现，该反馈控制网络响应于负载端子上的现有负载电压而改变提供给每个可饱和核心电抗器的DC控制绕组的电流幅度。

公开(公告)号：US4267487A

公开(公告)日：1981-05-12

申请号：US136697

申请日：1980-04-02

Applicant: Robert M. Unetich ,  William Shibler

Inventor： Robert M. Unetich ,  William Shibler

IPC: G05F1/38 ,  G05F1/64

CPC classification number: G05F1/38

Abstract: A high power tube in applications requiring reduced AC hum in the amplified signal, utilizes a direct current heated filament. In order to reduce the incidence of tube failure and maintain a stable mode of operation, the direct current is produced by a regulated source of DC voltage. The regulated source includes a transformer having a primary winding coupled to a source of alternating line voltage and also includes a secondary winding at which a transformed low voltage is generated. A rectifier is coupled to the secondary winding for rectifying the transformed voltage to produce a pulsating direct voltage which is applied to the tube filament by a filter. The primary winding of the transformer is coupled to the AC source by means of a saturable reactor. A control circuit senses the voltage across the filament and controls the reactor in a feedback manner.

Abstract translation: 在放大信号中需要减少AC嗡嗡声的应用中的高功率管，使用直流加热的灯丝。 为了降低管故障的发生率并保持稳定的工作模式，直流电由直流电压的稳定源产生。 调节源包括具有耦合到交流线路电压源的初级绕组的变压器，并且还包括产生变换的低电压的次级绕组。 整流器耦合到次级绕组，用于整流变换的电压以产生通过滤波器施加到管芯的脉动直流电压。 变压器的初级绕组借助可饱和电抗器耦合到交流电源。 控制电路感测灯丝两端的电压，并以反馈方式控制电抗器。

公开(公告)号：US4112347A

公开(公告)日：1978-09-05

申请号：US762896

申请日：1977-01-26

Applicant: Nathan A. Moerman

Inventor： Nathan A. Moerman

IPC: G05F1/38 ,  H01F29/14 ,  H01F38/02 ,  H02H9/02 ,  G05F1/14

CPC classification number: H01F29/14 ,  G05F1/38 ,  H01F38/02 ,  H02H9/021 ,  H01F2029/143

Abstract: An alternating current power control circuit utilizing progressive variation of magnetic flux in associated magnetic paths. Voltage and current sensors at an output provide feedback signals to permeance control devices to apportion flux between a pair of magnetic paths such that the primary magnetizing current remains essentially unchanged during the control process.

Abstract translation: 交流电力控制电路利用相关磁路中的磁通量的逐渐变化。 输出端的电压和电流传感器向磁导控制装置提供反馈信号以分配一对磁路之间的通量，使得主控励磁电流在控制过程中保持基本不变。

公开(公告)号：US4024451A

公开(公告)日：1977-05-17

申请号：US648908

申请日：1976-01-14

Applicant: Hisao Nishino ,  Kouichirou Ohta

Inventor： Hisao Nishino ,  Kouichirou Ohta

IPC: G05F1/00 ,  G05F1/10 ,  G05F1/32 ,  G05F1/38 ,  H02H7/122 ,  H02M3/28 ,  H02M3/335 ,  H02H7/12

CPC classification number: G05F1/10 ,  G05F1/38 ,  H02H7/122 ,  H02M3/33561

Abstract: A stabilized DC power supply device providing a plurality of different stabilized DC powers with regulated voltage levels. Stabilized DC powers with rated currents of 2A. or less are taken out from transistor series regulator circuits, another stabilized power with rated current of 8-10A. or more is output from a magnetic amplifier regulator circuit and other powers with rated current of 8-10A. or less are obtained from transistor switching regulator circuits. The regulated voltage output from one of the switching regulator circuits is used as an input DC power for the series regulator circuits and is fed to them through an DC-AC inverter circuit and respective rectifier circuits. Input powers to both the switching regulator circuits and the magnetic amplifier regulator circuit are from a DC power source through a single DC-AC inverter circuit. The device is small in size and good in efficiency. Overvoltage and overcurrent prospective circuits are provided to stop the operation of the DC-AC inverter circuit when either overcurrent or overvoltage occurs.

Abstract translation: 稳定的DC电源装置，其提供具有调节的电压电平的多个不同的稳定的DC电力。 额定电流为2A的稳定直流电源。 或更少的晶体管串联稳压电路，额定电流为8-10A的另一个稳定电源。 或更多的是从额定电流为8-10A的磁放大器调节器电路和其他功率输出。 或更小的晶体管开关调节器电路。 其中一个开关稳压器电路输出的稳压电压用作串联调节器电路的输入直流电，并通过直流 - 交流逆变电路和相应的整流电路馈给它们。 开关稳压器电路和磁放大器调节器电路的输入功率来自直流电源，通过单个DC-AC逆变器电路。 该装置尺寸小，效率好。 提供过电压和过电流预期电路，以在发生过电流或过电压时停止DC-AC逆变器电路的工作。