Power converter including positive bus ground

Details Power converter including positive bus ground Power converter including positive bus ground

1999-10-18

2000-12-12

Riley, Shawn

Electric power conversion systems

Current conversion

With condition responsive means to control the output...

363 58, 363132, H02H 7122, H02M 768, H02M 744

Patent

active

061607266

ABSTRACT:
A power converter which can provide a power supply grounded on a positive electrode bus of a DC power supply without adding an additional power supply such as a switching regulator and reduce a circuit size and cost is described. When a switching device T1 of an upper arm is ON, the potential at point U is nearly equal to the potential at point P, and the current ic1 flows from the positive electrode of a first drive power supply 21 into a capacitor C1 via a diode D7 to charge the capacitor C1. A power supply Vc formed by the capacitor C1 can be used as a power supply grounded on a positive electrode bus P of the DC power supply.

REFERENCES:
patent: 5552976 (1996-09-01), Munro et al.
patent: 5638266 (1997-06-01), Horie et al.

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