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In series-connected thyristors

  • In series-connected thyristors RC is called Snubber circuit.
  • In a series-connected thyristor circuit, the RC (resistor-capacitor) circuit that is connected in parallel with each thyristor is commonly referred to as a snubber circuit.
  • The snubber circuit is used to protect the thyristors from voltage and current transients that can occur during switching.
  • These transients can cause the thyristors to turn on or off unexpectedly, leading to overvoltage or overcurrent conditions that can damage the device.
  • The snubber circuit works by damping the voltage and current transients that occur during switching.
  • The capacitor in the snubber circuit charges up when the thyristor turns on, and discharges when the thyristor turns off.
  • The resistor in the snubber circuit limits the rate of discharge of the capacitor, which helps to reduce the magnitude of the voltage and current transients.