Simplified gaseous discharge device simmering circuit

Details Simplified gaseous discharge device simmering circuit Simplified gaseous discharge device simmering circuit

1988-11-04

1991-05-21

Razavi, Michael

Electric lamp and discharge devices: systems

Combined load device or load device temperature modifying...

Discharge device load

315291, 315193, 315DIG4, 315DIG7, H01J 744

Patent

active

050178342

ABSTRACT:
A high voltage active device such as a power FET is employed in a circuit configuration which maximizes the terminal impedance. This high impedance is placed in series with the gaseous discharge device to be driven. The gaseous discharge device is able to sustain conduction, between pulsed operations, at very low currents due to the very high impedance presented by the FET. A further refinement of the invention provides the supply voltage for the combination of the FET and the gaseous discharge device from a capacitor which can be charged during normal pulse-forming network charging.

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patent: 4642552 (1987-02-01), Suzuki et al.

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