High frequency switching battery charger
A power supply is described for charging a storage battery which consists of: power supply means adapted to be connected to a source of electrical energy for supply power; rectifying means operatively connected to the power supply means for rectifying the supplied power; output transformer means operatively connected to the rectifying means and to the battery for transforming the rectified power; power switching means operatively connected to the output transformer means for controlling a flow of current from the rectifying means through the output transformer means; pulse width modulator means operatively connected to the power switching means for controlling the power switching means, with a coupling transformer interposed between the pulse width modulator means and the power switching means; current sensing means for sensing the flow of current through the output transformer means; current limiting means responsive to the current sensing means and operatively connected to the pulse width modulator means for controlling the pulse width modulator means; charging voltage control means responsive to the current sensing means and operatively connected to the pulse width modulator means for controlling the pulse width modulator means; latch means for stopping the pulse width modulator means operatively connected to the pulse width modulator means; overcurrent sensing means responsive to the current sensing means operatively connected to the latch means for controlling the latch means; means for sensing the absense of the storage battery operatively connected to the latch means for controlling the latch means; and end-of-charge sensing means operatively connected to a terminal of the battery and to the latch means for controlling the latch means responsive to a predetermined voltage present at the terminal.
- Assignee:
- Allied Corp., Morris Twp., Morris County, NJ
- Patent Number(s):
- US 4584514
- OSTI ID:
- 5606053
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
250903* -- Energy Storage-- Batteries-- Materials
Components
& Auxiliaries
BATTERY CHARGERS
BATTERY CHARGING
CURRENTS
ELECTRIC BATTERIES
ELECTRIC CURRENTS
ELECTRIC POTENTIAL
ELECTRICAL EQUIPMENT
ELECTROCHEMICAL CELLS
ELECTRONIC EQUIPMENT
EQUIPMENT
FREQUENCY MODULATION
MODULATION
OVERCURRENT
POWER SUPPLIES
RECTIFIERS
SWITCHES
TRANSFORMERS