Problem with output voltage
DC-DC converter
Uin = 36-72 V
Uout = 22 V
Iout = 2.7 A
Instead of the diode BYV28-200 (D3) I use 8ETX06.
With increasing loads up to 1.5 A, the output voltage drops to 8 V.
Comments
After an increase of C8 to 470 uF, the same problem.
The entry I am replying to evidences the same output regulation issue I am having in the same titled entry recently posted, but I cannot find any resolution in the thread of the original entry by avi.
The schematic for output regulation is almost identical to the PI8 design solution that I am using.
Someone please point me to the solution for this earlier entry or my recent entry.
Thank you.
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Stewarth
stewart@driven-technologies.com
559-645-1034
C8 looks too low in value -- regulator sense is probably getting noisey. Increase to 470uF and see if this helps.