公开(公告)号：US4454573A

公开(公告)日：1984-06-12

申请号：US406477

申请日：1982-08-09

申请人： Johann Petsch ,  Eric F. Kohn

发明人： Johann Petsch ,  Eric F. Kohn

IPC分类号： H02M3/00 ,  H02P7/03 ,  H02P7/281 ,  H02P7/29 ,  G05B11/28 ,  H02P5/16

CPC分类号： H02P7/29 ,  H02P7/04 ,  H02P7/281 ,  H02P2205/01 ,  Y10S388/901 ,  Y10S388/903 ,  Y10S388/91 ,  Y10S388/933

摘要： A digital current regulator circuit, especially useful for a DC motor, is described which is fed directly, i.e., without power transformers, from the AC mains, via power transistors (T1-T4) that are controlled by pulse modulation and which can work in four-quadrant operation. An A/D converter (12) generates from samples of the motor current, an actual-value signal in the form of a multi-bit parallel binary code; and a binary comparator (20) compares the actual-value code with a theoretical-value code and generates binary error signals if the actual value is greater or less than the theoretical value. To provide DC-isolation of the power transistors and associated circuitry from the control circuitry that generates the error signals, the parallel bits of the actual-value code are transmitted to the control circuitry through an opto-electronic coupler (14). Other opto-electronic couplers (16, 30) can be provided to transmit other control signals.

摘要翻译： 描述了特别适用于直流电动机的数字电流调节器电路，其通过功率晶体管（T1-T4）直接馈送，即没有电力变压器从交流电源经由脉冲调制控制，并且可以工作在 四象限操作。 A / D转换器（12）从电机电流的样本产生多位并行二进制码形式的实际值信号; 并且二进制比较器（20）将实际值代码与理论值代码进行比较，并且如果实际值大于或小于理论值，则产生二进制误差信号。 为了从产生误差信号的控制电路提供功率晶体管和相关电路的DC隔离，实际值码的并行位通过光电耦合器（14）发送到控制电路。 可以提供其他光电耦合器（16,30）来传输其他控制信号。

公开(公告)号：US4600983A

公开(公告)日：1986-07-15

申请号：US445218

申请日：1982-11-29

申请人： Johann Petsch

发明人： Johann Petsch

IPC分类号： H02M3/00 ,  H02P7/03 ,  H02P7/281 ,  H02P7/29 ,  H02P7/00

CPC分类号： H02P7/29 ,  H02P7/04 ,  H02P7/281 ,  Y10S388/903

摘要： A digital current regulator circuit for a DC load that is connected within a transistor bridge circuit for multi-quadrant operation contains a digital comparator to which binary actual value codes and theoretical value codes are applied as well as a control unit for the time-discrete unipolar control of the transistors in dependence on a central timing signal. To avoid current distortions when the polarity of the load current changes, a blocking circuit is provided, by means of which the bridge circuit can be blocked when the polarity of the theoretical value code changes. A release circuit is also provided that terminates the blockage as soon as the load current actually becomes zero.

摘要翻译： 用于多象限操作的晶体管桥式电路中连接的用于直流负载的数字电流调节器电路包含应用二进制实际值代码和理论值代码的数字比较器以及用于时间离散单极性的控制单元 依赖于中央定时信号来控制晶体管。 为了避免当负载电流的极性变化时的电流失真，提供了阻塞电路，当理论值代码的极性发生变化时，桥接电路可以被阻塞。 还提供一个释放电路，一旦负载电流实际上变为零，就会终止阻塞。

公开(公告)号：US4399486A

公开(公告)日：1983-08-16

申请号：US260759

申请日：1981-05-05

申请人： Johann Petsch

发明人： Johann Petsch

IPC分类号： H05K1/02 ,  H05K1/18 ,  H05K7/20

CPC分类号： H05K1/0263 ,  H05K1/18 ,  H05K2201/09972 ,  H05K2201/10022 ,  H05K2201/10166 ,  H05K2201/10174

摘要： A transistor control unit for a servo motor has its control part and its power part arranged on a single printed circuit element. The control part and a cooling body, power transistors and power diodes of the power part are located side-by-side on one side of the element, the current connections being on the other side. Resistance arrays in flat rectangular housings are mounted end-on on the element with their main surfaces vertical when the element is mounted in position.

摘要翻译： 用于伺服电动机的晶体管控制单元的控制部分和其功率部分布置在单个印刷电路元件上。 功率部件的控制部分和冷却体，功率晶体管和功率二极管并排地位于元件的一侧，电流连接在另一侧。 平面矩形外壳中的电阻阵列安装在元件上，当元件安装就位时，它们的主表面垂直安装在元件上。