Re: Looking for a better in circuit ESR meter
Lower the frequency, and you can easily measure the DCtoggle quoted messageShow quoted text
resistance. If the waveform clips at the the clamp diode's
voltage, your DC parallel resistance is greater than 500 ohms.
Why should the diode conduct? It won't conduct until the
sum of the ESR and Xc is greater than 500 ohms.
If the diode conducts at 100KHz, your capacitor is bad.
Reginald Beardsley via groups.io wrote:
The DC resistance in parallel with the capacitor must be measured as it affects the AC measurement. If the diode conducts during either measurement, the results are not accurate.