Drive circuit

Details Drive circuit Drive circuit

2008-12-24

2011-11-15

Berhane, Adolf (Department: 2838)

Electricity: power supply or regulation systems

Output level responsive

Using a three or more terminal semiconductive device as the...

C327S108000, C327S112000

Reexamination Certificate

active

08058854

ABSTRACT:
A drive circuit includes a plurality of output drive terminals and a plurality of push-pull circuit stages. Each of the push-pull circuit stages includes a pair of complementary transistors having a common terminal connected to a respective output drive terminal. The drive circuit further includes a plurality of first transistors connected in series with at least one of the pair of complementary transistors of the push-pull circuit stages, respectively, and a common second transistor. The common second transistor is connected with each of the plurality of first transistors to form a current mirror circuit. The drive circuit further includes a mirror current setting circuit for setting a mirror current flowing through the common transistor.

REFERENCES:
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patent: 6166570 (2000-12-01), Hedberg
patent: 6215340 (2001-04-01), Nomura
patent: 6882187 (2005-04-01), Kim et al.
patent: 6885225 (2005-04-01), Ohmichi et al.
patent: 7532445 (2009-05-01), Rana et al.
patent: 05-301344 (1993-11-01), None

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