发明名称 OVERCURRENT PROTECTION AND OVERLOAD INDICATION CIRCUIT FOR A BISTABLE OUTPUT AMPLIFIER INTENDED TO BE INTERFACED WITH A COMPUTER
摘要 1. System of the overcurrent protection and warning of amplifier overload with two-stage output operating with the microprocessor; is characterised in that transistor emitter circuit of the protected amplifier (1) contains sensor (4) of the output current (2) connected through the interfacing resistor (10) with negative resistance element (8), which (8) is connected to the key input (7) and condenser (9) with serially connected input of the known multiplier (11) with low input dynamic resistance with voltaic separation and with the output signal (13) to the microprocessor, while the transistor collector circuit of the protected amplifier (1) has the object regulator device (3), as well as the amplifier (1) with serially connected Zener diode in its input circuit (5) controlled through the known amplifier (14) by the microprocessor signal (12) and with the standard conducting key (7).<IMAGE>
申请公布号 PL157376(B1) 申请公布日期 1992.05.29
申请号 PL19880274254 申请日期 1988.08.17
申请人 发明人
分类号 H02H7/20;H03F;H03F1/52;H03F3/72;(IPC1-7):H03F1/52 主分类号 H02H7/20
代理机构 代理人
主权项
地址