FLASHLAMP DRIVE CIRCUIT
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United States of America Patent
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-
N/A
Issued Date -
Oct 17, 2002
app pub date -
Mar 1, 2001
filing date -
Mar 1, 2001
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
The invention provides a power supply or drive circuit for a pulsed flashlamp which utilizes a two-core component having common windings as both an inductor for arc mode drive and for breakdown triggering of the lamp. Discharge of a capacitor through the inductor and lamp is controlled by a high speed semiconductor switch which is turned on and off by a suitable control, current flowing from the inductor through a one-way path including the lamp when the switch is off. The control maintains the ratio of the current variation through the lamp to the average current through the lamp substantially constant.
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