Power supply control unit and power supply control method

Details Power supply control unit and power supply control method Power supply control unit and power supply control method

2000-02-10

2000-10-31

Berhane, Adolf Deneke

Electricity: power supply or regulation systems

Output level responsive

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

323283, 361 931, G05F 140

Patent

active

061408069

ABSTRACT:
An abnormal current in a first semiconductor switch is detected. When an abnormal current occurs, ON/OFF of the first semiconductor switch is controlled so as to generate a vibration current. The first semiconductor switch is shut off by this vibration current. A voltage between drain and source of the first semiconductor switch is compared with a voltage between drain and source of a second semiconductor switch by means of a comparator. Then, a control voltage is supplied from a driving circuit to gate terminals of the first semiconductor switch and second semiconductor switch according to a result of this comparison.

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patent: 4933798 (1990-06-01), Widmayer et al.
patent: 5144155 (1992-09-01), Maenishi et al.
patent: 6005303 (1999-02-01), Hawkes et al.

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