Apparatus for charging energy storage means from a multiphase po

Details Apparatus for charging energy storage means from a multiphase po Apparatus for charging energy storage means from a multiphase po

1998-07-01

1999-11-30

Tso, Edward H.

Electricity: battery or capacitor charging or discharging

One cell or battery charges another

Vehicle battery charging

320108, 320148, 320157, H01M 1046

Patent

active

059948728

ABSTRACT:
A battery charger which supplies charging current for a high voltage, high current battery in accordance with a charge profile which preferably includes both a charge pulse sequence as well as a discharge pulse sequence. Charging power is obtained from a three phase power line the voltage of which is reduced by an isolation transformer. Conversion of ac to dc is accomplished by a switching transistor power converter having a control for supplying transistor switching signals. The control is responsive to the angle of line voltage, the actual line current and a reference signal indicative of desired charge current, to generate the transistor switching signals. Any deviation between actual and desired current is then corrected by modification of the transistor switching signals.

REFERENCES:
patent: 5773955 (1998-06-01), Hall

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