Power supply for gas discharge devices

Details Power supply for gas discharge devices Power supply for gas discharge devices

H - Electricity

02

M

355/51, 315/66

H02M 7/537 (2006.01)

Patent

CA 1258137

-13- POWER SUPPLY FOR GAS DISCHARGE DEVICES ABSTRACT OF THE DISCLOSURE A low current, high voltage power supply for gas discharge devices, such as neon tubes. The power supply has a free-running oscillator which generates a high frequency voltage signal which drives a light-weight, compact transformer. The oscillator has a power transistor drive, and a second transistor is used to remove the base drive of the power transistor to render it non-conductive. The second transistor also provides a path for rapid evacuation of the charge carriers stored in the base-emitter junction of the power transistor to rapidly render it non-conductive when the second transistor is energized. A safety bypass circuit is provided should a fault occur with the gas discharge device.

492636

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