| 摘要 |
PURPOSE:To stabilize the output voltage equivalently to a forward system by constructing a circuit in which a reactor and a diode are removed in a stabilized power source having a plurality of output circuits. CONSTITUTION:The finishing end side of the primary winding N1 of a transformer 3 is connected with an input terminal 1, and the starting end side is connected through a main semiconductor switch element 4 with an input terminal 2. The base of the element 4 is connected with a switching controller 5. The starting end side of the secondary winding N2 is connected through a magnetic amplifier (MA) 6 and a main diode 7 with an output terminal 11, and the finishing end side is connected with the output terminal 12. A transistor Q, resistors R1, R2 and a diode D are provided, and a voltage stabilizer of an output A is formed together with the MA 6. Further, a winding N3 is provided, and an output voltage V is obtained by rectifying by a rectifier 21. Thus, the output B is applied through a comparison detector with the controller 5, the element 4 is controlled to stabilize the both outputs A, B. |
