priming rectifier circuit of the silicon to the applications of the control of high voltages

摘要

The present invention relates to an ignition circuit of the silicon controlled rectifier comprising a diode (64), a capacitor (70) and a rectifier to the silicon controlled (80), the diode (64), charging the capacitor (70) in order to initiate the rectifier to the silicon controlled (80). An ignition circuit of the rectifier to the silicon controlled elements mounted in the opposite is also provided, comprising a first and a second diode (64, 64 ′), a first and a second capacitor (70, 70 ') and a rectifier to the silicon controlled (80), the first diode (64), charging the first capacitor (70) in order to initiate the rectifier to the silicon controlled (80) when a line voltage is positive and the second diode (64') which urges the second capacitor (70 ') in order to initiate the rectifier to the silicon controlled (80) when the line voltage is negative. In addition, an isolator circuit is provided comprising at least three optocouplers (24, 30, 36) arranged in series which isolate a control voltage of a high supply voltage.