Semiconductor device for driving a load

Details Semiconductor device for driving a load Semiconductor device for driving a load

2007-09-11

2007-09-11

Zweizig, Jeffrey (Department: 2816)

Miscellaneous active electrical nonlinear devices, circuits, and

Signal converting, shaping, or generating

Current driver

Reexamination Certificate

active

11220529

ABSTRACT:
A semiconductor device for driving a load includes a first semiconductor switching element interposed between a power supply terminal and a load, a second semiconductor switching element interposed between the load and a ground terminal, a high-side driver, a low-side driver, and a voltage regulator. The voltage regulator reduces a voltage applied to a control terminal of the second switching element, when a voltage of a load terminal of the second switching element is lower than a predetermined voltage. Then, a voltage applied between the load terminal and the ground terminal of the second switching element increases, and accordingly a voltage applied between the power supply terminal and the load terminal of the first switching element decreases.

REFERENCES:
patent: 5502632 (1996-03-01), Warmerdam et al.
patent: 5543740 (1996-08-01), Wong
patent: 6191625 (2001-02-01), Wachter et al.
patent: 6661208 (2003-12-01), Rutter et al.
patent: 6674268 (2004-01-01), Rutter et al.
patent: A-2001-305632 (2001-11-01), None
“TPD2004F—Toshiba Intelligent Power Device Silicon Monolithic Power MOS IC,” Toshiba Semiconductor Company, Sep. 11, 1998 (discussed on p. 1 of the specification).

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