dip16amp
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Quote:
That transformer seems to have too high of an output for an 18 VAC. The noload output should not be more than 22 VAC. The peak value 22*1.414=31 and with diode voltage drop, should be about 25 vdc instead of 35.8 vdc. You could measure the voltage drops across each of the rectifiers.
Originally Posted by kin0kin checked, they are 0.2ohm, no voltage drop across them. My toroidal are 18V as opposed to 22V AC seen in the picture. What should I do next? is there a way to check if the LM338 and OPA541 are working properly? |
That transformer seems to have too high of an output for an 18 VAC. The noload output should not be more than 22 VAC. The peak value 22*1.414=31 and with diode voltage drop, should be about 25 vdc instead of 35.8 vdc. You could measure the voltage drops across each of the rectifiers.