| Electronics > Projects, Designs, and Technical Stuff |
| A problem about my switch mode Power supply |
| << < (4/4) |
| ocset:
your transformer is not phased correctly for it to be a flyback. (The dots are in the wrong place) |
| China NewBoy:
thank you , i knew that my sch have the transformer mistake but my PCB doc is not wrong .....just too lazy to correct the sch |
| China NewBoy:
--- Quote from: China NewBoy on November 19, 2019, 10:36:20 am ---thank you , i knew that my sch have the transformer mistake but my PCB doc is not wrong .....just too lazy to correct the sch --- End quote --- and the problem have been solved ,its c2_cha ..... my stupid mistake, i take a 1uf cap to solder on c2_cha's place. and it cause the feedback volt too low |
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