| Electronics > Projects, Designs, and Technical Stuff |
| A problem about my switch mode Power supply |
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| China NewBoy:
--- Quote from: xavier60 on November 03, 2019, 02:53:46 pm --- --- Quote from: China NewBoy on November 03, 2019, 02:18:48 pm ---it is a restrict current res , the Res change the volt is r10 r12 ,and i think the problem is relate to the current loop because the volt is accuracy with no load or larger than 20ohm --- End quote --- Is there activity at the comparator output pins? --- End quote --- it is late in china, i will try to figure out your datesheet tomorrow.thank you for your reply |
| China NewBoy:
--- Quote from: xavier60 on November 03, 2019, 01:22:51 pm ---I think R19 should connect to the rail being regulated, 24V. --- End quote --- I increase the value of R19 to 2.7K and the output volt seems no difference. |
| China NewBoy:
--- Quote from: China NewBoy on November 04, 2019, 01:01:12 pm --- --- Quote from: xavier60 on November 03, 2019, 01:22:51 pm ---I think R19 should connect to the rail being regulated, 24V. --- End quote --- I increase the value of R19 to 2.7K and the output volt seems difference. --- End quote --- i think what casue my problem is the current checking loop is too sensitive. |
| China NewBoy:
--- Quote from: China NewBoy on November 04, 2019, 01:01:12 pm --- --- Quote from: xavier60 on November 03, 2019, 01:22:51 pm ---I think R19 should connect to the rail being regulated, 24V. --- End quote --- I increase the value of R19 to 2.7K and the output volt seems no difference. --- End quote --- sorry about my typing mistake (lack a no.....)..sorry |
| China NewBoy:
https://www.youtube.com/watch?v=oZOkMZSDCR8&feature=youtu.be My problem Video |
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