FIELD: electrical engineering; cash register battery charging. SUBSTANCE: device is supplied with power from ac source and has rectifier, thyristor power unit, power-unit control circuit, diode and resistor both inserted in thyristor-unit-to-battery coupling circuit, and capacitor inserted in resistor-to-diode circuit; connected in parallel with resistor is light-emitting diode used to analyze state of battery charge; thyristor unit control circuit is connected to storage battery through switch whose control input is connected to capacitor. EFFECT: provision for checking state of battery charge in the course of its charging. 2 dwg
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Authors
Dates
2000-12-20—Published
1997-08-12—Filed