The snubber circuit is used in thyristor circuits to dampen the ringing when turning off SCR. An RC snubber protects an SCR against false switching-ON due to high break-over voltage induced by L* di/dt. Thyristor snubber circuit exampled with a reverse polarized Diode “D” and a discharge resistor “R_D”. Here R and C are snubber resistor and capacitor respectively. Values of Snubber Resistor and Capacitor can be determined by reading the snubber circuit design page.
RCD snubber circuit is used with SCR
2 responses to “RCD snubber circuit is used with SCR”
[…] SCR Snubber Circuit […]
[…] through the diode not through the resistor .There is a trade off between the RC and the RCD snubbers. The RCD snubber decreases the power lossduring the turn OFF period compared to the RC snubber. […]