| 摘要 |
PURPOSE:To achieve light weight by using a high frequency transformer, to obtain a level, at which vehicle mounting is possible, and to perform the control so that a power factor is made to approach 1. CONSTITUTION:The waveform of the command current of a current control circuit is made analogous to the waveform on an input voltage for a voltage detecting circuit 17. When the voltage is lower than a battery voltage, a circuit 13 for shorting a reactor 8 is provided. The signals from a voltage comparing circuit 19 and a gate circuit 23 are inputted into an AND circuit 22, and obtained signal with the AND circuit is applied in this constitution. Thus, the control can be performed so that the waveform of the current is made analogous to the waveform of the input voltage. Therefore, the power factor is approximately close to 1. |
