Electricity: battery or capacitor charging or discharging – Serially connected batteries or cells – With discharge of cells or batteries
Patent
1983-05-11
1985-06-11
Wong, Peter S.
Electricity: battery or capacitor charging or discharging
Serially connected batteries or cells
With discharge of cells or batteries
320DIG1, 363 21, H02J 704
Patent
active
045231397
ABSTRACT:
An electronic switching power supply for supplying power to an electrical load from a variable voltage level AC or DC voltage source having first and second terminals, the power supply including a transformer having a primary coil and a secondary coil, a first terminal of the secondary coil being connected to the electrical load, a first transistor connected in series with the primary coil, a first diode connected in series with the secondary coil and the electrical load, a first capacitor connected between the base of the first transistor and a second terminal of the secondary coil, a second transistor, the collector-emitter line of which is connected across the voltage source, a first resistor connected between the first terminal of the secondary coil and the collector of the second transistor, a second resistor connected between the first terminal of the secondary coil and the emitter of the first transistor, and a discharge circuit connected between the first capacitor and the electrical load, whereby the first capacitor is electrically charged during a conducting phase of the first transistor, and during a subsequent blocking phase of the first transistor, the electrical load receives the charge built up in the first capacitor during the preceding conducting phase.
REFERENCES:
patent: 4316242 (1982-02-01), Colangelo et al.
patent: 4376263 (1983-03-01), Pitroff et al.
patent: 4441147 (1984-04-01), Schwarz
patent: 4464619 (1984-08-01), Schwarz et al.
Bergk Gunther
Schwarz Gerhard
Ault Anita M.
Braun Aktiengesellschaft
De Vellis Raymond J.
Wong Peter S.
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