| 摘要 |
<p>PURPOSE:To convert and transmit DC energy in the bidirections between a low voltage side terminal and a high voltage side terminal by mounting the switching elements and rectifying devices of two systems and one transformer and selecting a control mode. CONSTITUTION:A control circuit 4 alternately switches low voltage side switching elements Ta and Tb, rectifies high-voltage currents generated in a high voltage side winding 3 through a rectifying device Dc or Dd, and outputs DC voltage V2 converted into high voltage between high voltage side terminals 1e and 1d at the time of a low-voltage high-voltage conversion mode. The control circuit 4 alternately switches high voltage side switching elements Tc and Td, rectifies low-voltage currents generated in a low voltage side winding 2 through a rectifying device Da or Db, and outputs DC voltage V1 converted into low voltage between low voltage side terminals 1a and 1b at the time of a high-voltage low-voltage conversion mode. Accordingly, a bidirectional DC-DC converter can be constituted in small size.</p> |
