| 摘要 |
PURPOSE:To reduce the power consumption and to raise the efficiency of a power source by inserting an inductance for flowing an inductive current to cancel the variation in the output voltage of a circuit not controlled in pulse width in series with the circuit. CONSTITUTION:The primary winding N0 of a main transformer T1 is connected through the collector and emitter of a switching transistor Q with a DC input power source E. On the other hand, the secondary winding N1 is connected through a rectifier REC1 with a pulse width controller PC for controlling the transistor Q by detecting the output voltage in the first circuit C1 of the secondary side of the transformer T1. Further, the secondary winding N2 is connected with a controller CONT for controlling the primary current of a control transformer T2 by detecting the output voltage through a rectifier REC2 in series with the secondary winding n2 of a control transformer T2 in the second circuit C2. |
