Electronic HV switch with opto-coupler switch path control - has opto-coupler operating voltage obtained from winding wound around loop current core

摘要

The switch has at least one switch path (I-II), with a symmetry element in parallel with each switch path, for providing voltage symmetry. A current loop is provided for each switch path (I-II) via an associated angular core (RK) supplied with a current pulse (ip) of given amplitude and frequency, with an optocoupler (OKI) controlling the switch path (I-II) in response to the operating voltage (UB) obtained across a capacitor (C1) connected to a second coil winding via a diode (D1). When a number of switch paths (I-II) are connected in cascade, they are all controlled simultaneously via the optocouplers (OK1). ADVANTAGE - Rapid switch operation for capacitive load.