Hey folks want to make an ESR meter been studying various designs and came across this PIC based version...
**broken link removed**
Looks ok but doesn't use a conventional 100khz test signal, but instead pulses the capacitor and uses PIC dac to measure voltage drop and then work out ESR - so is this going to be a problem where accuracy is concerned?
BTW I really like the idea of capacitance measurement on top of ESR as my multimeter and pic based LC meter is limited in upper range to about 15uF!
There is also a similar Russian version below but seems a little over complicated whilst using a similar approach!
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Any opinions appreciated!
**broken link removed**
Looks ok but doesn't use a conventional 100khz test signal, but instead pulses the capacitor and uses PIC dac to measure voltage drop and then work out ESR - so is this going to be a problem where accuracy is concerned?
BTW I really like the idea of capacitance measurement on top of ESR as my multimeter and pic based LC meter is limited in upper range to about 15uF!
There is also a similar Russian version below but seems a little over complicated whilst using a similar approach!
Google Translate
Any opinions appreciated!