ENERGY SAVING ELECTRONIC DEVICE, HEAT DISSIPATING FAN POWER CONTROL SYSTEM AND CONTROL METHOD THEREOF
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United States of America Patent
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Issued Date -
Jun 23, 2011
app pub date -
Jun 28, 2010
filing date -
Dec 18, 2009
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
The present invention relates to energy saving electronic device, a heat dissipating fan power control system and a control method thereof. The heat dissipating fan power control system comprises a voltage selection circuit and a voltage conversion circuit. A plurality of voltage signals from a plurality power input terminals and a control are received by the voltage selection circuit to select one of the voltage signals as an output voltage signal. The voltage conversion circuit is connected to the voltage selection circuit to receive the output voltage signal and the control signal and to convert the voltage value of the output voltage into the work voltage value according to the control signal to thereby drive the heat dissipating fan.
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