| 摘要 |
<p>Uninterruptable electrical power supply device with a regulated output sinusoidal voltage, comprising a rectifier (10) fed by the mains voltage and connected to the terminals of a bridge configuration, two branches (12) of which comprise controlled switches (16), and two other branches (18) of which comprise the transistors (22) of an inverter, the primary winding of a transformer being connected in the diagonal (24) of the bridge so as to supply the regulated output voltage Vs at the terminals of the secondary winding (30), either in the presence of the mains voltage, or from the voltage supplied by a bank B of electrical accumulators. <IMAGE></p> |
