| 摘要 |
This DC-DC converter (101) is provided with: a smoothing circuit that smooths a voltage/current switched by a switching element (Q1); and a control unit (10) that controls the output voltage/current of the smoothing circuit by controlling the switching element (Q1). The smoothing circuit is provided with: a first smoothing circuit comprising an inductor (L1) and smoothing capacitors (C2, C3); and a second smoothing circuit comprising an inductor (L1) and a capacitor (C4). The first smoothing circuit smooths the voltage/current switched by the switching element (Q1) and supplies the result to a load (RL). The second smoothing circuit smooths the voltage/current switched by the switching element (Q1) and supplies the result to voltage divider circuits (R1, R2). The control unit (10) performs feedback control of the switching element (Q1) in a manner so that the voltage supplied to the voltage divider circuits becomes uniform. As a result, provided is a DC-DC converter that can be caused to have a gradient in the output voltage characteristics without generating loss. |
