FIELD: electricity.
SUBSTANCE: device includes accumulation capacitor and power transistor controlled by HF pulse generator with adjustable pulse frequency within 1-5 kHz. Charge circuit of accumulation capacitor switches step-up HF transformer by direct current at negative half-waves of network voltage; primary winding of the step-up transformer is connected in series to the network via power transistor, and secondary winding is linked to accumulation capacitor via high-voltage diode. Control base-emitter transition of power transistor is connected into transformer circuit via first limiting resistor with step-down pulse generator with adjustable interruption frequency of accumulation capacitor charge current in 1-5 kHz range, and discharge circuit of accumulator capacitor connects inductance coil and power thyristor in series with accumulation capacitor back to network, where the thyristor is switched on at positive half-waves of network voltage from step-down winding of LF transformer connected to power network, via a sequence of power thyristor actuation diode and second limiting resistor.
EFFECT: simplified device.
4 dwg
