Title:
DRIVING CIRCUIT
Document Type and Number:
Japanese Patent JPH0522943
Kind Code:
A
Abstract:
PURPOSE: To enable lowering the power consumption of a drive circuit and to obtain a good turn-off ability for high switching efficiency by combining a turn on mechanism with a turn-off mechanism. CONSTITUTION: DC voltage of 340V is impressed in the series circuit of transistors TR1, TR2, constituting a pair of switching elements. Because the transistors TR1, TR2 are MOSFETs, a DC power supply having a rise time of 3kV/ms or less which is impressed on resistors R1, R2 prevents TR1 or TR2 from being turned on. RUN signals, transmitted from a control circuit 2, stops and starts a bridge inverter. The control circuit 2 performs a delay operation so that resistors 9 and 10 can charge a voltage Vc without fail, which is half the DC voltage, before the inverter starts.
Inventors:
REIMONDO AASAA BOSU
Application Number:
JP33054091A
Publication Date:
January 29, 1993
Filing Date:
December 13, 1991
Export Citation:
Assignee:
THORN LIGHTING LTD
International Classes:
H02M7/10; H02M7/12; H02M7/06; H02M7/538; H02P7/00; H03K17/687; H03K17/695; (IPC1-7): H02M7/06; H02M7/10
Attorney, Agent or Firm:
Satoru Yoshimura
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