Control device for controllable electric valve

Details Control device for controllable electric valve Control device for controllable electric valve

1986-10-15

1987-12-01

Salce, Patrick R.

Electricity: power supply or regulation systems

In shunt with source or load

Using a three or more terminal semiconductive device

323351, G05F 1613

Patent

active

047106964

ABSTRACT:
A device for supplying a control terminal of a three-terminal controllable electric valve connected between positive and negative lines. The device includes a transformer having a primary and a secondary windings, a first capacitor connected to the primary winding, and a second capacitor connected with the secondary winding. The first capacitor is adapted to be charged when the electric valve is turned off and to discharge through the primary winding when the electric valve is turned on. The current induced in the secondary winding by the discharging current is supplied, as an operating current, to the circuit for driving the electric valve.

REFERENCES:
patent: 3930170 (1975-12-01), Buren et al.
patent: 4087703 (1978-05-01), Akamatsu
patent: 4287434 (1981-09-01), Akamatsu
patent: 4593204 (1986-06-01), McMurray
M. Akamatsu et al., "Ultrasonic-Frequency-PWM Inverter using Capable Bipolar Transistor and a New PWM Control Method", 1983, pp. 1108-1118.
Yoichi Okano et al., "High Frequency Inverter Using Power Mosfet", 1983, pp. 1119-1129.
Enrico Dallago et al., "Application of Power Mosfets in a Three Phase Inverter Controlled by Microprocessor", 1983, pp. 1142-1149.

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