![]() This is commonly known as dv/dt triggering. We already know that if the rate of rise of anode to cathode voltage of SCR is high then it may lead to false triggering. The main purpose of Snubber Circuit is to prevent the unwanted triggering of SCR or thyristor due to high rate of rise of voltage i.e. ![]() What is the importance of snubber circuit in protection of SCR? This appli- cation note will show you how to design these two snubbers. There are many different kinds of snubbers but the two most common ones are the resistor- capacitor (RC) damping network and the resistor-capacitor-diode (RCD) turn-off snubber. Apart from limiting voltage transients, snubbers are also used for shaping load lines, limiting dV/dt, reducing switching losses, transferring power dissipation from switches, and reducing voltage and current ringing. Snubbers are used in power circuits to suppress harmful voltage transient spikes. These are placed across the semiconductor devices for protection as well as to improve the performance. Snubber circuits are needed to limit the rate of change in voltage or current (di/dt or dv/dt) and over voltage during turn-on and turn-off. 8 Are snubbers better for some applications?.7 What is the purpose of a snubber circuit?.6 How does snubber circuit provide DV DT protection?.5 Where and why do we use snubber circuit in SCR?.3 Why is a snubber required across a thyristor?.
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