| 摘要 |
The present invention provides a switching mode power supply device comprising a signal output unit which outputs an AC signal by using commercial power supplied from the outside; a phase inverter circuit which outputs a phase-inverted signal by inverting the phase of the AC signal; a first current feedback control unit which provides a first amplification signal by amplifying the phase-inverted signal; a first DC blocking condenser which outputs a first oscillation signal by removing a DC signal from the first amplification signal; and a converter which supplies power to an electronic device by using the first oscillation signal. |
