Series inverter for capacitor charging
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United States of America Patent
Stats
-
Dec 28, 1982
Grant Date -
N/A
app pub date -
Nov 13, 1980
filing date -
Nov 13, 1980
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A series inverter, high voltage capacitor charging circuit includes current sensors for sensing the current through each SCR in the circuit. The sensed current is used to vary the gating frequency of the SCRs and to preclude firing of an SCR until the other is in a stable off condition. The gating of each SCR is delayed by an amount of time determined by a control capacitor charging circuit. That charging circuit is inhibited as long as one of the SCRs is conducting and once the load voltage has reached a predetermined level. The time constant of that charging circuit can be changed as the desired level is approached.
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