Start, hot restart and operating lamp circuit

Details Start, hot restart and operating lamp circuit Start, hot restart and operating lamp circuit

1987-04-06

1988-08-09

Moore, David K.

Electric lamp and discharge devices: systems

Plural power supplies

Diverse-type current supplies

315174, 315119, 315225, 315360, 315276, 315287, 315289, 315DIG7, H05B 4126, H01J 6196

Patent

active

047630442

ABSTRACT:
A starting, hot restarting and operating circuit includes a pulse circuit for applying high voltage pulses to an HID lamp for starting or hot restarting. After a set interval of pulses if the lamp has not ignited, the pulse circuit is turned off for a selected inactive interval after which pulses are applied to the lamp again. If ignition does not occur after several active/inactive cycles, the circuit is deactivated until reset by turning the power off and on.

REFERENCES:
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patent: 4206385 (1980-06-01), Wisbey
patent: 4275337 (1981-06-01), Knoble et al.
patent: 4495446 (1985-01-01), Brown et al.

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