DC-DC converter of charge pump type

Details DC-DC converter of charge pump type DC-DC converter of charge pump type

1991-10-31

1993-09-14

Beha, Jr., William H.

Electric power conversion systems

Current conversion

With voltage division by storage type impedance

320 1, H02M 307

Patent

active

052455246

ABSTRACT:
A DC-DC converter includes first and second capacitors coupled in parallel, a switching part for controlling the first and second capacitors so that the first capacitor is charged by an input voltage and the second capacitor is charged by a discharging of the first capacitor, an output voltage being obtained at one end of the second capacitor, and the switching part including a discharge path through which the second capacitor is discharged. An output voltage detection units detects the output voltage and determines whether or not the output voltage satisfies a predetermined condition. A discharge path breaking units breakes the discharge path when the output voltage detection unit determines that the output voltage satisfies the predetermined condition, so that the first capacitor is prevented from being discharged through discharge path.

REFERENCES:
patent: 4127895 (1978-11-01), Krueger
patent: 5051881 (1991-09-01), Herold
patent: 5132895 (1992-07-01), Kase

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