Direct-current stabilized power supply device

Details Direct-current stabilized power supply device Direct-current stabilized power supply device

2006-06-02

2009-06-09

Patel, Rajnikant B (Department: 2838)

Electricity: electrical systems and devices

Safety and protection of systems and devices

Voltage regulator protective circuits

C361S058000, C323S277000

Reexamination Certificate

active

07545609

ABSTRACT:
In a direct-current stabilized power supply device provided with an output transistor that receives an input voltage from the outside and a control circuit that controls the output transistor so that an output voltage of the direct-current stabilized power supply device is stabilized, there is provided a voltage supply circuit that steps down the input voltage and outputs the voltage thus obtained as a voltage for driving the control circuit. The voltage supply circuit is built as a charge pump circuit that steps down the input voltage and then outputs the voltage thus obtained.

REFERENCES:
patent: 5574357 (1996-11-01), Otake et al.
patent: 6044002 (2000-03-01), Van Der Wal et al.
patent: 6424128 (2002-07-01), Hiraki et al.
patent: 6903535 (2005-06-01), Liu et al.
patent: 6903538 (2005-06-01), Umeda et al.
patent: 2005-6442 (2005-01-01), None

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