Driver circuit for inverter

Details Driver circuit for inverter Driver circuit for inverter

1995-12-11

1997-11-04

Krishnan, Aditya

Electric power conversion systems

Current conversion

With condition responsive means to control the output...

H02M 324

Patent

active

056846878

ABSTRACT:
A driver circuit for an inverter includes a switching circuit formed of a first switching element and a second switching element connected in series, which are turned on and off in complementary with one another; a first DC power supply connected parallel to the switching circuit; a first driver circuit connected to the first switching element for driving the same; a second driver circuit connected to the second switching element for driving the same; a second DC power supply connected to the second driver circuit for supplying electric power to the second driver circuit; and a first capacitor connected to the first driver circuit and having a charge-up path communicating with the second DC power supply. During an ON-period of the second switching element, the first capacitor is charged up through the second DC power supply and supplies electric power to the first driver circuit. A series circuit formed of a PNP transistor and a diode and are disposed in the charge-up path, and a resistor is connected between a base of the PNP transistor and a negative terminal of the second DC power supply. The second DC power supply can rise smoothly.

REFERENCES:
patent: 5572418 (1996-11-01), Kimura et al.

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