FIELD: electrical engineering.
SUBSTANCE: invention relates to power supply circuits and electronic equipment, relating to field of electronic circuits. Power supply circuit includes storage battery, power supply control microcircuit and radio frequency (RF) microcircuit. At that, output terminal of accumulator battery is connected by input terminal of power supply control microcircuit. At that, input terminal of power supply control microcircuit is separately earthed through appropriate filter capacitor, respectively. Output terminal of accumulator battery is also connected with input terminal of RF circuit through power supply switching circuit.
EFFECT: technical result consists in reduction of noise level.
8 cl, 4 dwg
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