| 摘要 |
PURPOSE:To standardize a transformer and to facilitate designing and manufacturing by connecting the primary winding of a sub transformer with the output of the secondary winding of a main transformer, and providing sub rectifying and smoothing circuits at the secondary side of the sub transformer to provide multiple outputs. CONSTITUTION:A switching circuit 1 is provided at the primary side of a main transformer T1, and a main rectifying and smoothing circuit 3 are provided at the secondary side. The primary winding of the sub transformer, i.e., the primary winding n12 of the sub transformer T1 and the primary winding n31 of the sub transformer T3 are connected with the output of the secondary winding n12 of the main transformer T1, and small sub rectifying and smoothing circuit 4 is connected with the secondary windings n22, n32 of the sub transformers T2, T3 to produce outputs V3, V4. |
