| 摘要 |
PURPOSE:To perform a small-sized, light-weight and inexpensive rectifier by commonly using diodes and reactors for a main circuit and an auxiliary power source, thereby simplifying the construction of the auxiliary power source. CONSTITUTION:In a main circuit, an AC is rectified by a mixture bridge rectifier of diodes D1P, D2P and thyristors SCRIN, SCR2N, and smoothed by a reactor L and a capacitor C1 to obtain a DC voltage. In an auxiliary power source, AC input terminals U, V are connected through a capacitor C11 and diodes D11N, D12N with DC positive line of the main circuit to obtain a DC voltage across a capacitor C11. The capacitor C1 of the main circuit side is controlled at the DC voltage by the control of the thyristors SCR1N, SCR2N. The capacitor C11 of the power source is charged by a DC voltage full-wave rectified by diodes D1P, D2P, D11N, D12N and a reactor L1. |
