| 摘要 |
PURPOSE: To provide a resonance switching power supply having half bridge structure in which the size and cost are reduced while enhancing the noise resistance. CONSTITUTION: A series circuit of first and second transistors Q1, Q2 is connected with a DC power supply 1. The second transistor Q2 is connected in parallel with the primary winding N1 of a transistor T1 and the primary winding Nl is connected in series with a capacitor C1 and an inductor L1 for series resonance. An auxiliary capacitor Cb is not connected with the first transistor Q1 but connected only with the second transistor Q2. |
