Power source for lighting apparatus

Details Power source for lighting apparatus Power source for lighting apparatus

1991-09-26

1992-12-29

LaRoche, Eugene R.

Electric lamp and discharge devices: systems

Periodic switch in the supply circuit

Silicon controlled rectifier ignition

315208, 315219, 315241R, 315239, 315283, 315DIG5, 315DIG7, 315291, H05B 3702

Patent

active

051754746

ABSTRACT:
An apparatus for operating discharge lamp. The apparatus includes a source of electrical power, switching devices for switching the electrical power, a control circuit for controlling the switching devices, a transformer having a primary winding for receiving the electrical power switched by the switching devices and a secondary winding for supplying power to the lighting apparatus, a resonant circuit including an inductor and a capacitor for regulating the frequency of the electrical power and a circuit for powering the control circuit, the powering circuit including a secondary winding on the inductor and an additional winding on the transformer connected in a differential manner.

REFERENCES:
patent: 4709188 (1987-11-01), Roberts

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