DC-DC Converter for charging a battery by means of a solar cell

Electricity: battery or capacitor charging or discharging – Serially connected batteries or cells – With discharge of cells or batteries

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Details

307580, 320 61, 331112, 363 18, H02J 710, H02M 3335, H03K 1760

Patent

active

042740444

ABSTRACT:
A DC-DC converter is described of the blocking oscillator type, for charging a battery from a solar cell. The use of a field effect transistor enables the oscillation to be started by the voltage from a single solar cell, even if the battery is fully exhausted. The overall efficiency of the circuit is improved by the use of the base-emitter junction of the switching transistor of the converter as rectifying element for the battery charging current.

REFERENCES:
patent: 2854614 (1958-09-01), Light
patent: 2881380 (1959-04-01), Kruger
patent: 3681674 (1972-08-01), Terry, Jr.
patent: 4015609 (1977-04-01), Mensink et al.

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