| 摘要 |
<p>A charge and discharge control device, wherein S1 used as a switching element for pressure rising and S2 used as a switching element for pressure lowering are turned on and off alternately with a dead time provided therebetween irrespective of whether an electric motor load a powering or regenerating operation is performed, whereby a DC reactor current can be operated continuously at all times, and the discontinuous state of the DC reactor current need not be detected.</p> |
