Electric power conversion systems – Current conversion – With condition responsive means to control the output...
Patent
1997-08-06
1998-06-23
Wong, Peter S.
Electric power conversion systems
Current conversion
With condition responsive means to control the output...
323338, 320DIG28, H02M 3335
Patent
active
057711658
ABSTRACT:
The battery charger including a power factor correcting and voltage regulating apparatus having an inductor through which current is modulated by a modulator to obtain an efficient regulation and an efficient power factor correction. According to a first embodiment, the modulator comprises two rectifying elements connected to two controllable high frequency bidirectional switch elements. According to a second embodiment, the modulator comprises a rectifying element connected to a controllable high frequency switch. According to a third embodiment, an efficient battery charger is provided. It comprises an inverter including four controllable high frequency bidirectional switch elements connected in a bridge configuration. According to a fourth embodiment, a two-part battery charger is provided. It has an indicator for indicating quality of the coupling between the two parts thereof. According to a fifth embodiment, a two-part battery charger is provided. It has the necessary means for detecting the voltage delivered at the terminals of the battery and using it for controlling its operation.
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Couture Pierre
Francoeur Bruno
Slimani Karim
Han Y. J.
Hydro-Quebec
Wong Peter S.
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