Motor driving apparatus incorporating switch device driving...

Details Motor driving apparatus incorporating switch device driving... Motor driving apparatus incorporating switch device driving...

2007-04-10

2007-04-10

Han, Jessica (Department: 2838)

Electricity: power supply or regulation systems

Output level responsive

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

C323S285000, C318S812000

Reexamination Certificate

active

11075525

ABSTRACT:
A motor driving apparatus which includes a pair of field-effect transistors connected in series between a first supply voltage and a second supply voltage lower than the first supply voltage, an output smoothing circuit connected to a node between the two field-effect transistors, a driver for controlling on/off states of the field-effect transistors according to an input signal, and a detector for detecting on/off states of body diodes attached respectively to the field-effect transistors. Only after either of the body diodes is detected being on are the field-effect transistors respectively turned on to produce an output corresponding to the input signal so as to eventually produce a desired output voltage from the first supply voltage.

REFERENCES:
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patent: 4910416 (1990-03-01), Salcone
patent: 5757173 (1998-05-01), Agiman
patent: 6781354 (2004-08-01), Zhang
patent: 2003/0141856 (2003-07-01), Kimura
patent: 0 860 946 (1998-08-01), None
patent: 06-253537 (1994-09-01), None
patent: 2000-092824 (2000-03-01), None

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