| 摘要 |
PROBLEM TO BE SOLVED: To enable improvement of reduced efficiency caused by a detection resistor component or responsiveness.SOLUTION: A power supply circuit (100) using a switching element includes: calculation means for generating a gate voltage value from a gate drive voltage corresponding to an error value between a voltage fed back from a latter stage of smoothing means and a reference voltage; and gate drive voltage generation means for generating a gate drive voltage determined on the basis of the generated gate voltage value.SELECTED DRAWING: Figure 1 |
