Strobe flash lamp power supply with input voltage feedthrough afterflow prevention circuit
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United States of America Patent
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-
Sep 4, 1990
Issued Date -
N/A
app pub date -
Aug 29, 1988
filing date -
Nov 4, 1985
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The DC to DC converter includes a coupled inductor having a primary winding and a feedback winding. A drive current regulator circuit receives a variable input voltage from the feedback winding but transmits a constant base drive current to the base terminal of the converter switching transistor. The base drive regulator circuit thereby enables the DC to DC converter to operate at high levels of efficiency over wide ranges of DC input voltages such as twelve to forty-eight volts DC.
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