CIRCUIT FOR PRODUCING, TRANSFERRING BETWEEN DIFFERENT VOLTAGE CIRCUITS AND STABILIZING AN ALTERNATING CURRENT

摘要

Circuit arrangement for producing, transferring between different voltage circuits and stabilizing an alternating current, comprising a sampler (2) provided with a synchronisation input (4) and with a control input (3), a current detector (5), a filter circuit (6), a self-heterodyne inverter (7) producing a square voltage and provided with a synchronous signal output (8) and a regulating circuit (9). The present invention is characterized in that a direct voltage (1) changing within set limits is applied through the sampler (2), the current detector (5) and the filter circuit (6) to an input of the self-heterodyne inverter (7) of which the synchronous signal output (8) is conveyed to the synchronisation input (4) of the sampler (2). An output (13) of the current detector (5) providing a signal proportional to the current mean value is connected to an input (10) of the regulating circuit (9), while a reference signal (14) determining the current value is conveyed to the other input of the regulating circuit (9). The output of the regulating circuit (9) is connected to the control input (3) of the sampler (2). The output of the inverter (7) forms simultaneously the alternating current output of the circuit.