Voltage source and current source with capacitor

Details Voltage source and current source with capacitor Voltage source and current source with capacitor

2006-05-09

2006-05-09

Tran, Thuy Vinh (Department: 2821)

Electricity: power supply or regulation systems

Output level responsive

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

C315S225000, C315S226000

Reexamination Certificate

active

07042204

ABSTRACT:
In a voltage source according to the present invention, a switching transistor (Q1) is turned on when the voltage of an electrolytic capacitor (C1) exceeds a predefined positive voltage level (E1), to keep the electrolytic capacitor (C1) at the predefined voltage level (E1), and turned off when the voltage of the electrolytic capacitor (C1) is reduced below the predefined voltage level (E1). A switching transistor (Q2) is turned on when the voltage of an electrolytic capacitor (C2) is reduced below a predefined negative voltage level (−E2), to keep the electrolytic capacitor (C2) at the predefined voltage level (−E2), and turned off when the voltage of the electrolytic capacitor (C2) exceeds the predefined voltage level (−E2). Therefore, an output voltage (V3) is controlled between the predefined voltage level (E1) as an upper limit and the predefined voltage level (−E2) as a lower limit.

REFERENCES:
patent: 3947754 (1976-03-01), Wechsler
patent: 4139723 (1979-02-01), Havas
patent: 4447764 (1984-05-01), Komrumpf et al.
patent: 4447765 (1984-05-01), Cote
patent: 5917290 (1999-06-01), Shen et al.
patent: 5959440 (1999-09-01), Tobita et al.
patent: 36-4331 (1961-04-01), None
patent: 52-6009 (1977-02-01), None
patent: 53-132749 (1978-11-01), None
patent: 56-139081 (1981-10-01), None
patent: 59-896 (1984-01-01), None
patent: 59-3892 (1984-01-01), None
patent: 63-55795 (1988-04-01), None
patent: 3-124782 (1991-12-01), None
patent: 4-28212 (1992-01-01), None
patent: 4-54513 (1992-02-01), None
patent: 4-87562 (1992-03-01), None
patent: 4-95106 (1992-03-01), None
patent: 4-356907 (1992-12-01), None
patent: 7-84656 (1995-03-01), None
patent: 9-237125 (1997-09-01), None
patent: 11-3785 (1999-01-01), None
patent: 11-187664 (1999-07-01), None
patent: 200-294391 (2000-10-01), None
patent: 2001-197742 (2001-07-01), None
patent: 2001-238444 (2001-08-01), None
patent: 2003-116277 (2003-04-01), None

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