LNK623PG--Why the voltage output much lower than expected?
We design the power circuit with LNK623PG.
There are two output designed：XVA（12V）and V3.3, but we just get 4V for XVA and 1V for V3.3.
Both two output voltages are just one third of expected.
Is the duty cycle set wrong? But how to change?
Thanks!
Comments
We follow AN-37, but still the out put is not stable. 3.3V @ 0.5A, we only applied 50mA load and Output Voltage is jumping from 1.5V to 8V
any recomendaiton to sort this issue.
It has been too long we are fighting this. my email: saleem@calpak-usa.com
I did uplaod the scheamtic.
Thanks...
| Attachment | Size |
|---|---|
| LinkSwitch-lnk-623PG_Shematic.pdf (42.09 KB) | 42.09 KB |
Please reply or any one can assist
Why 3.3V is not stable. We follow are deign creitera.
| Attachment | Size |
|---|---|
| LinkSwitch-lnk-623PG_Shematic.pdf (42.09 KB) | 42.09 KB |
| LinkSwitch-lnk-623PG_Transformer.pdf (29.11 KB) | 29.11 KB |
Hello saleem@calpak-u...,
i saw you post a new topic for the same question. I will follow up with you in that topic.
Best Regards
Hello saleem@calpak-u...,
i saw you post a new topic for the same question. I will follow up with you in that topic.
Best Regards
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