Power source circuit with a compact size and operating efficiently at low temperature
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United States of America Patent
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-
Apr 18, 1995
Grant Date -
N/A
app pub date -
Oct 30, 1991
filing date -
Oct 31, 1990
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A power source circuit converts direct: current (DC) power into alternating current (AC) power having a required frequency, and provides DC output power according to the AC power. The power source circuit comprises an oscillator for providing a control signal that determines a converting frequency of the AC power; an element provided for the oscillator, having temperature characteristics for increasing the converting frequency at a low temperature; and a device for determining the converting frequency of the AC power according to the control signal provided by the oscillator.
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