| Electronics > Repair |
| 18V/3A HY1503 PSU - weird CC/CV behavior while charging battery cells |
| << < (4/15) > >> |
| xavier60:
That sounds right. An earlier "HY1503modded.JPG" shows 10K for R19 and 1nF for C2. What does the load transient test look like? |
| iMo:
I do not have the HW pulser here - but here are the sims. With C4 1uF it makes no difference, with C4 10nF the difference is visible. (C11 in the original schematics). With 1k 330p I get less swings than with the 10k 1n.. |
| xavier60:
That seems to show the transitioning from CC to CV sometime after switch-on. Cam you simulate a load transition test? |
| iMo:
..and with 100pF only it is the best.. CC - Yep, CC is set to aprox 0.7A and the load is 1A/0.1A pulsing.. Load transition - what exactly you want to see? |
| xavier60:
Yes, it does look that way. |
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