| 摘要 |
A Switching Mode Power Supply (SMPS) which can operate at a high switching frequency is provided. The SMPS includes: a switching unit for chopping an input DC power to a square wave of the frequency and outputting the square wave; an inverter unit which includes an upper output unit and a lower output unit that are turned on/off alternately in response to a logic level of the square wave signal output by the switching unit, and generating the square wave signal; a current feedback unit for detecting the current flowing through the output terminal of the inverter unit; a switching control unit for adjusting the pulse phase of the square wave of the switching unit in response to the detection signal output by the current feedback unit and maintaining the DC voltage of a final output regular; and an output rectifying unit for rectifying the square wave signal output by the inverter unit and outputting the signal as the DC power. |
