400w current-mode boost UC3845

yoosefheidar

New member
hi
i design this circuit and build it.under no load condition input is 15 and output is 36 without problem.but when i connetct a 6 ohm load out put voltage drop to about 14.5v and output current about 2.4amps.
inductors are self made 31turns/2.5mm gap/er28(pc40 material)55uh
under no load condition when i connetct input its take about 4-5 seconds to output set 36 volts.
do you know what is problem?
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Silvio

Member
Have you tried a larger output capacitor? For the output you need to put a light load for the output voltage to settle quicker.
 
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