| 摘要 |
The method involves controlling closing of predetermined number of switches respectively for associated closure times (tf-A, tf-B, tf-C). Closing of some of the switches is controlled for the associated closure times during each opening of one of the precedingly closed switches, so that a constant number of switches is closed simultaneously. Closing of the switches is controlled by transmission of pulse width modulation control signals, where the control signals are in-phase or phase-shifted. An independent claim is also included for an electric charging device for charging a storage unit. |
