| 摘要 |
PROBLEM TO BE SOLVED: To provide a power supply circuit that can perform multi-output while suppressing increase of the number of components.SOLUTION: A switching element 30 switches a DC voltage input from a DC power supply 2 to apply a rectangular waveform voltage to a primary winding 101 of a first transformer 10. A primary winding 211 of a second transformer 21 and a primary winding 221 of a second transformer 22 are connected to each other in parallel between both the ends of a secondary winding 102 of the first transformer 10. A rectifying and smoothing part 51 is connected to a secondary winding 212 of the second transformer 21, rectifies and smooths an induction voltage output from the secondary winding 212 to obtain a DC voltage and outputs the DC voltage to a load 61. A rectifying and smoothing part 52 is connected to a secondary winding 222 of the second transformer 22, rectifies and smooths an induction voltage output from the secondary winding 222 to obtain a DC voltage, and outputs the DC voltage to a load 62.SELECTED DRAWING: Figure 1 |
