Semiconductor device having output transistor and current...

Details Semiconductor device having output transistor and current... Semiconductor device having output transistor and current...

2007-02-06

2008-10-14

Richards, N. Drew (Department: 2816)

Miscellaneous active electrical nonlinear devices, circuits, and

Signal converting, shaping, or generating

Current driver

C327S109000, C327S309000, C327S312000, C327S427000, C361S056000, C361S093700

Reexamination Certificate

active

07436225

ABSTRACT:
A semiconductor device includes: a semiconductor substrate having first and second pads; an output transistor; and a current control circuit having first and second resistors, a control signal generation circuit, first and second switching circuits. The first or second resistor is disposed between the first or second pad and the output transistor. The control signal generation circuit generates a control signal to the output transistor based on a voltage of both ends of the first or second resistor. The first or second switching circuit is disposed between both ends of the first or second resistor and the control signal generation circuit. The first or second switching circuit is controlled to be in an on-state.

REFERENCES:
patent: 5528128 (1996-06-01), Melse
patent: 6198315 (2001-03-01), Nakano
patent: 6573693 (2003-06-01), Okamoto
patent: 0 827 266 (2001-06-01), None
patent: A-2000-131369 (2000-05-01), None
patent: A-2005-86872 (2005-03-01), None
patent: A-2005-252968 (2005-09-01), None

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