Clamp assisted cycle control regulating system

Details Clamp assisted cycle control regulating system Clamp assisted cycle control regulating system

1980-06-09

1982-04-13

La Roche, Eugene R.

Electric lamp and discharge devices: systems

Condenser in the supply circuit

Condenser in shunt to the load device and the supply

315224, 315225, 315278, 320 1, H05B 4134

Patent

active

043250084

ABSTRACT:
A precision regulated power supply for charging an energy storage capacitor wherein regulation is achieved using a triac to interrupt a connection between a primary winding of a transformer and a DC power source. The circuit is useful in a power supply for a photocopier flash lamp where precision regulation of light intensity is required. A control winding is wound on the transformer closely coupled to the power secondary winding. A triac is connected across the control winding such that the winding can be short circuited when it is desired to cease charging of the storage capacitor. Short-circuiting of the control winding collapses the voltage on the transformer secondary winding thereby inhibiting the flow of current in the secondary winding. Regulating circuitry senses the voltage on the capacitor and gates the control winding triac into conduction when that voltage reaches a desired magnitude.

REFERENCES:
patent: 3476977 (1969-11-01), Hallay
patent: 3749976 (1973-07-01), Colyn
patent: 3821635 (1974-06-01), Kimmel et al.
patent: 3890562 (1975-06-01), West

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