| 摘要 |
PURPOSE:To eliminate the error of output voltage of a plurality of stabilized power supplies connected in parallel by using the voltage control shunt regulator of a master stabilized power supply jointly with that of a slave stabilized power supply. CONSTITUTION:The cathode of a shunt regulator 28 is connected with the voltage feedback limiting resistance 30 of a slave stabilized power supply 8 through an output voltage control line 22, and the input diode 29 of an output voltage feedback photocoupler on the slave side, in the same way as that on the master side, is connected in series with said voltage feedback limiting resistance 30. Thus, the output current of the output transistor 13 of said output voltage feedback photocoupler is supplied to a switching stabilized control circuit 11 like the master side so that said switching stabilized control circuit 11 supplies output terminals 16, 17 with DC. A slave stabilized power supply 9 also functions in the same way as the slave stabilized power supply 8. |
