| 摘要 |
<p>PURPOSE:To reduce loss by specifically connecting a winding for a boosting choke and a diode for a feedback. CONSTITUTION:A push-pull boosting converter is constituted of switching elements 2, 3, a boosting choke 4, a diode 5 for a feedback, a transformer 6 and a rectifying circuit 7, and supplies load 8 with electricity. The diode 5 for the feedback is connected between the plus side of a DC power supply 1 and the winding-end side of an NS winding for the boosting choke 4 at polarity shown in the figure in this case. Accordingly, potential difference between an NP winding and the NS winding for the boosting choke 4 is kept constant at all times and is not varied, thus eliminating loss on charging and discharging operation.</p> |
