Hi,
I have a problem with the DAC used in a supply. It outputs more or less than what is required and expected (This was found out by comparing the outputs of malfunctioning DAC with that of properly functioning DAC). A glimpse of the expected/required & actual outputs is in the following. These values are obtained by rotating the shaft of the potentiometer.
Expected/Required
Actual
All the values on other pins of the DACs (functioning and malfunctioning) are almost the same. Note also that the malfunctioning DAC has been replaced once but nothing has changed.
Any observaton or idea will be appreciated!
I have a problem with the DAC used in a supply. It outputs more or less than what is required and expected (This was found out by comparing the outputs of malfunctioning DAC with that of properly functioning DAC). A glimpse of the expected/required & actual outputs is in the following. These values are obtained by rotating the shaft of the potentiometer.
Expected/Required
- 0.6V
- 1.2V
- 1.8V
- 2.4V
- 3V
Actual
- 0.9V
- 1.8V
- 2.3V
- 0.17V
- 1.02V
All the values on other pins of the DACs (functioning and malfunctioning) are almost the same. Note also that the malfunctioning DAC has been replaced once but nothing has changed.
Any observaton or idea will be appreciated!
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