Static converter switch with fast recovery freewheel diode
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United States of America Patent
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-
Feb 11, 1986
Grant Date -
N/A
app pub date -
Jul 3, 1984
filing date -
Jul 5, 1983
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A static converter, including at least one pair of mutually co-acting switching transistors (TR1, TR2), of which the first switching transistor (TR1) is controlled with a frequency exceeding the control frequency of the second switching transistor (TR2). A diode (D1, D2) is connected between the emitter and collector of respective switching transistors. The noval feature of the invention resides in that a voltage source (N1, P) is activated when the first switching transistor (TR1) is energized to its conducting mode (I.sub.R) and to supply a reverse recovery current (I.sub.rr) through the diode (D2) of the second switching transistor in the reverse direction of the diode.
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