power-supply circuits-fixed of numerical control and DC part 1

Published:2011/5/29 20:13:00 Author:Ariel Wang | Keyword: mumerical control, DC, circuits-fixed | From:SeekIC

After SI is being connected, 220VACvoltage is dropped down through T, commutated through UR and filtered through C1.It generates +18V DC voltage. The voltage is steady through IC2，IC3，IC4 and IC5. Then it generates the voltage of 5V，+6V，+9V and +l2V. These four groups are put on V1-V4 collectors. The voltage of +gV is being as working power supply as IC. After ICl electrified and reset, the YO edge(3 feet)is high power level output,Yl-Y9 is low power level output. Press S2,the CP edge (14 feet) will output a bigger counting pulse. The Yl egde wil output high power level,while YO edge turns back to low power level. Press S2 continuously,the YO-Y4 edge of ICl will output high power level one by one.



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