| 摘要 |
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 (25) for providing a control signal that determines a converting frequency of the AC power; an element (22) provided for the oscillator, having temperature characteristics for increasing the converting grequency at a low temperature; and a device (121) for determining the converting frequency of the AC power according to the control signal provided by the oscillator. <IMAGE> |
