公开(公告)号：US4794507A

公开(公告)日：1988-12-27

申请号：US132875

申请日：1987-12-14

申请人： George A. Cavigelli

发明人： George A. Cavigelli

IPC分类号： H02M1/08 ,  H02P13/26

CPC分类号： H02M1/081 ,  Y10S323/902

摘要： A power controller includes a full-wave bridge rectifier circuit coupled to an A.C. line by a storage inductor with two windings and a saturating inductor. The output of the bridge rectifier is connected to a D.C. output terminal for producing output voltages for a symmetrical amplifier. The D.C. potential provided by the full-wave rectifier is compared with a ramp signal having an external ramp set point related to the D.C. output potential relative to a reference potential to provide a trigger pulse for controlling the time the SCR is gated on. A balancing system selectively switches auxiliary resistances in and out to maintain a desired balance. Upon sensing a gross imbalance, the SCR is turned off. The power controlling apparatus includes isolation circuitry for creating an isolation barrier having a high frequency path and a low frequency path. The high frequency path includes a transformer having main primary and secondary windings. The transformer also includes an auxiliary primary winding whose output is combined with the signal on the input terminal to provide low frequency spectral components of the input signal that are coupled across the barrier by an electro-optical coupler that energize a low pass filter. The output of the low pass filter is combined with the signal on the secondary of the transformer to provide the isolated output signal. The power amplifier also includes bias control circuitry including a differential amplifier having two transistors with emitters connected together and bases direct coupled to respective emitters of the output Darlington transistors. The respective collectors are direct coupled to respective bases of the output Darlington transistors. A capacitor is connected between the bases of the two transistors.

摘要翻译： 功率控制器包括通过具有两个绕组和饱和电感器的存储电感器耦合到交流线的全波桥式整流器电路。 桥式整流器的输出端连接到直流输出端，用于产生对称放大器的输出电压。 将由全波整流器提供的直流电位与具有相对于参考电位的直流输出电位相关的外部斜坡设定点的斜坡信号进行比较，以提供用于控制SCR选通时间的触发脉冲。 平衡系统选择性地将辅助电阻切换到外部以保持期望的平衡。 感测到总体不平衡时，SCR关闭。 功率控制装置包括用于产生具有高频路径和低频路径的隔离屏障的隔离电路。 高频路径包括具有主要和次级绕组的变压器。 变压器还包括辅助初级绕组，其输出与输入端上的信号相结合，以提供输入信号的低频谱分量，该频率分量通过激励低通滤波器的电光耦合器跨越屏障耦合。 低通滤波器的输出与变压器次级信号相结合，提供隔离输出信号。 功率放大器还包括偏置控制电路，其包括具有两个晶体管的差分放大器，发射极连接在一起，并且基极直接耦合到输出达林顿晶体管的相应发射极。 各个集电极直接耦合到输出达林顿晶体管的相应基极。 电容器连接在两个晶体管的基极之间。

公开(公告)号：US4618921A

公开(公告)日：1986-10-21

申请号：US765127

申请日：1985-08-13

申请人： Hiroshi Ikeda ,  Osamu Higa

发明人： Hiroshi Ikeda ,  Osamu Higa

IPC分类号： H02M9/02 ,  H02M7/162 ,  H02P13/26 ,  G05F1/455

CPC分类号： H02M7/162 ,  H02M7/1623

摘要： A power supply system for supplying a load current to a load including a serially connected circuit of a controlled rectifier, a switch and a capacitor. A diode is connected in parallel with the capacitor or with a serially connected circuit of the switch and the capacitor and a control circuit. Which controls the controlled rectifier such that when a first voltage between the capacitor is larger than or equal to a specified voltage the controlled rectifier is operated as bypass pair mode and when the first voltage is below the specified voltage the controlled rectifier is operated as current control mode. A method for starting a power supply system is also disclosed.

摘要翻译： 一种用于向负载提供负载电流的电源系统，该负载包括受控整流器，开关和电容器的串联连接的电路。 二极管与电容器或开关和电容器的串联电路和控制电路并联连接。 其控制可控整流器，使得当电容器之间的第一电压大于或等于指定电压时，可控整流器作为旁路对模式运行，并且当第一电压低于指定电压时，可控整流器作为电流控制 模式。 还公开了一种启动电源系统的方法。

公开(公告)号：US4447868A

公开(公告)日：1984-05-08

申请号：US365706

申请日：1982-04-05

申请人： Fred G. Turnbull

发明人： Fred G. Turnbull

IPC分类号： H02M7/21 ,  H02M7/12 ,  H02M7/219 ,  H02M7/72 ,  H02P3/18 ,  H02P13/26

CPC分类号： H02M7/219

摘要： A three-phase regenerative rectifier provides power flow from ac to dc using a three-phase rectifier bridge. The reversal of the input ac voltage at the input frequency commutates current in the rectifier devices. A power transistor or field-effect transistor is coupled in inverse parallel with each rectifier device to provide a path for current from the dc output of the rectifier back to the ac supply during regeneration. The rectifier devices can be phase controlled thyristors or diodes. Control means sense the three-phase voltage and switch the transistors in phase with the ac supply. Commutation of the transistors is provided by their self-contained turn-off capabilities.

摘要翻译： 三相再生整流器使用三相整流桥提供从交流到直流的功率流。 在输入频率下的输入交流电压的反转将整流器中的电流整流。 功率晶体管或场效应晶体管与每个整流器装置反并联耦合以提供用于在再生期间从整流器的直流输出回到交流电源的电流的路径。 整流器件可以是相控晶闸管或二极管。 控制装置检测三相电压并切换晶体管与交流电源同相。 晶体管的换向通过其独立的关断能力提供。

公开(公告)号：US4163906A

公开(公告)日：1979-08-07

申请号：US827343

申请日：1977-08-24

申请人： Hironori Shimamura

发明人： Hironori Shimamura

IPC分类号： H02M3/325 ,  H02M3/337 ,  H02M7/48 ,  H02P13/26

CPC分类号： H02M3/3378 ,  Y10T307/43 ,  Y10T307/469 ,  Y10T307/484

摘要： A time division switching regulator wherein a single power source is connected to a plurality of inverters the outputs from which are rectified and smoothed and appear at respective output terminals, and the output voltages at said terminals are sequentially monitored and are compared with a reference voltage to generate an error signal in response to which the output from the corresponding inverter may be controlled or regulated.

摘要翻译： 一种时分开关稳压器，其中单个电源连接到多个反相器，其输出被整流和平滑并出现在相应的输出端，并且所述端子处的输出电压被依次监视并与基准电压进行比较 产生一个误差信号，响应于相应的逆变器的输出可以被控制或调节。

公开(公告)号：US4156275A

公开(公告)日：1979-05-22

申请号：US823606

申请日：1977-08-11

申请人： Hans O. Loberg

发明人： Hans O. Loberg

IPC分类号： H02M1/084 ,  H02M7/155 ,  H02M7/162 ,  H02P13/26 ,  H02M1/14

CPC分类号： H02M7/1623

摘要： A power conversion unit for supplying electrical power to a load from a polyphase a.c. source includes a controlled rectifier bridge connected between the source and the load. Control of the rectifiers is provided through the generation of a firing wave signal for each phase of the source which wave signals are phase displaced with respect to the phase-to-phase source voltages by a prescribed amount. Reference signals proportional to the desired output of the bridge and steering signals defining prescribed relationships between the firing wave signals are combined with the wave signals to generate signals utilized to control the conduction of the bridge rectifiers.

摘要翻译： 一种电力转换单元，用于从多相交流开关向负载供电。 源包括连接在源和负载之间的可控整流桥。 整流器的控制通过产生用于信号源的各相的发射波信号来提供，其中波信号相对于相间源极电压相移一定数量。 与桥的期望输出成比例的参考信号和定义着火波信号之间的规定关系的转向信号与波信号组合以产生用于控制桥式整流器的导通的信号。

公开(公告)号：US5687065A

公开(公告)日：1997-11-11

申请号：US345167

申请日：1994-11-28

申请人： Naveed Majid

发明人： Naveed Majid

IPC分类号： H02M7/06 ,  G05F1/66 ,  H02M1/00 ,  H02M1/42 ,  H03K17/16 ,  H02P13/26

CPC分类号： H02M1/4208 ,  G05F1/66 ,  H03K17/16 ,  H03K17/166 ,  Y02B70/126

摘要： A power integrated circuit pre-regulator AC/DC converter circuit which employs a slow turn-off lateral insulated gate bipolar transistor (LIGBT) device as the switching transistor so as to reduce the decay time of a current generated by the parasitic inductance in the circuit upon turn-off of the LIGBT device, thereby to substantially reduce the level of a ringing voltage produced at the drain of the LIGBT device.

摘要翻译： 一种采用慢关断横向绝缘栅双极晶体管（LIGBT）器件作为开关晶体管的功率集成电路预调节器AC / DC转换器电路，以便减少由电路中的寄生电感产生的电流的衰减时间 在关闭LIGBT器件时，从而显着降低在LIGBT器件的漏极处产生的振铃电压的电平。

公开(公告)号：US4523267A

公开(公告)日：1985-06-11

申请号：US560888

申请日：1983-12-14

申请人： Byron R. Mehl

发明人： Byron R. Mehl

IPC分类号： H02M7/162 ,  H02P13/20 ,  H02P13/26

CPC分类号： H02M7/1626

摘要： A control circuit for a power converter which converts between polyphase periodic power and unidirectional power is disclosed. The control circuit includes first means for sensing a parameter of the periodic power and a ramp generator coupled to the first means for generating a ramp signal having a frequency equal to the frequency of the periodic power. A second means senses a parameter representative of a condition at the output of the power converter and a comparator combines the outputs from the ramp generator and the second means to generate a pulse train having a frequency equal to the frequency of the periodic power but shifted in time relative thereto, with the shift being dependent upon the output parameter. A phase-locked loop, of PLL, multiplies the frequency of the pulse train and additionally develops a signal which is coupled to the ramp generator to maintain the amplitude of the output therefrom at a constant level irrespective of changes in frequency of the periodic power. Multi-phase logic is coupled to the PLL and develops switching signals for switches in the converter.

摘要翻译： 公开了一种用于在多相周期功率和单向功率之间转换的功率转换器的控制电路。 控制电路包括用于感测周期功率的参数的第一装置和耦合到第一装置的斜坡发生器，用于产生具有等于周期功率的频率的频率的斜坡信号。 第二装置检测表示功率转换器的输出处的状态的参数，并且比较器组合来自斜坡发生器和第二装置的输出，以产生具有等于周期功率的频率但是偏移的频率的脉冲串 时间相对于此，其移动取决于输出参数。 PLL的锁相环乘以脉冲串的频率，并且另外形成耦合到斜坡发生器的信号，以将其输出的幅度保持在恒定水平，而不管周期性功率的频率的变化。 多相逻辑耦合到PLL并为转换器中的开关产生开关信号。

公开(公告)号：US4495557A

公开(公告)日：1985-01-22

申请号：US330848

申请日：1981-12-15

申请人： James G. Weit

发明人： James G. Weit

IPC分类号： H02M7/162 ,  H02M7/757 ,  H02M7/797 ,  H02P13/26

CPC分类号： H02M7/757 ,  H02M7/1623 ,  H02M7/797 ,  Y10S388/915 ,  Y10S388/917

摘要： A high response motor controller is disclosed which operates directly from a multi-phase AC power line without a DC link. The controller directly converts power from a fixed frequency multi-phase input to a D.C. or variable frequency output current. The output frequency is not limited by the AC power line frequency and the switching frequency is independent of the AC power line frequency. Controlled switching devices are connected between the multi-phase power input line and the power output line. Analog input signals are compared with signals representative of actual motor currents to produce current error signals. These current error signals control the conduction state of the controlled switching output transistors by a two state modulation process. The controlled switching output devices required to conduct the commanded motor current are selected by sensing and logically comparing the relative voltages of the various AC input line phases to utilize the phase lines having the greatest potential difference therebetween.

摘要翻译： 公开了一种高响应电动机控制器，其直接从没有DC链路的多相AC电力线工作。 控制器直接将固定频率多相输入的功率转换为直流或变频输出电流。 输出频率不受交流电源线频率的限制，开关频率与交流电源线频率无关。 控制开关器件连接在多相电源输入线和电源输出线之间。 将模拟输入信号与表示实际电机电流的信号进行比较，以产生电流误差信号。 这些电流误差信号通过两个状态调制过程控制受控开关输出晶体管的导通状态。 通过感测和逻辑地比较各种AC输入线相位的相对电压以利用它们之间具有最大电位差的相位线来选择进行指令的电动机电流所需的受控切换输出装置。

公开(公告)号：US4315305A

公开(公告)日：1982-02-09

申请号：US75307

申请日：1979-09-12

申请人： Edward C. Siemon

发明人： Edward C. Siemon

IPC分类号： H02M7/155 ,  G05F1/10 ,  H02M1/08 ,  H02M7/12 ,  H02M7/162 ,  H02P13/26

CPC分类号： H02M7/1626 ,  H02M7/1623

摘要： By controlling the phase angle at which conduction occurs in the SCR's in an SCR rectifier bridge, a d-c voltage of adjustable magnitude may be produced from a-c line voltage applied to the bridge. The specific angle at which the SCR's are fired into conduction during each half cycle of the a-c line voltage is determined by comparing a ramp-shaped pulse, produced from the line voltage during each half cycle, with an error signal which varies as a function of the difference between the desired d-c magnitude and the actual amplitude of the d-c voltage. The d-c power supply is made immune to line voltage variations by regulating the ramp-shaped pulses so that they always have the same pulse width regardless of line voltage amplitude, thereby facilitating precise control over the d-c magnitude.

摘要翻译： 通过控制在SCR整流桥中的SCR中发生导通的相位角，可以由施加到桥的a-c线电压产生可调幅度的d-c电压。 在交流线路电压的每个半周期期间，SCR被烧成导通的特定角度是通过将由每个半周期内的线路电压产生的斜坡脉冲与根据 所需直流电压与直流电压的实际幅度之间的差值。 d-c电源通过调节斜坡脉冲使其免于线路电压变化，使得它们总是具有相同的脉冲宽度，而不管线路电压幅度如何，从而有助于精确控制d-c幅度。

公开(公告)号：US4228494A

公开(公告)日：1980-10-14

申请号：US934030

申请日：1978-08-16

申请人： Francis J. Stifter

发明人： Francis J. Stifter

IPC分类号： H02M7/155 ,  H02P13/26

CPC分类号： H02M7/1555

摘要： A constant current circuit including a silicon controlled rectifier connected to transmit current flow from an ac supply to a load. A sensor circuit provides a load signal having a level dependent upon the current flow through the load and a reference circuit provides a reference signal having a predetermined given level. Receiving the load and reference signals is a comparator with an output connected to an SCR firing control network that furnishes firing signals to a gate of the silicon controlled rectifier. The output from the comparator varies the firing signal produced by a phase shift network in response to a reference signal level greater than the level of the load signal and retards the phase of the firing signal in response to a load signal level greater than the given reference level.

摘要翻译： 一种恒流电路，包括连接到可控硅整流器，以将电流从交流电源传输到负载。 传感器电路提供具有取决于通过负载的电流的电平的负载信号，并且参考电路提供具有预定给定电平的参考信号。 接收负载和参考信号是一个比较器，其输出端连接到SCR点火控制网络，该控制网络向可控硅整流器的栅极提供点火信号。 来自比较器的输出响应于大于负载信号的电平的参考信号电平而改变由相移网络产生的触发信号，并响应于大于给定参考值的负载信号电平而阻止触发信号的相位 水平。