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AN1048/D RC Snubber Networks For Thyristor Power Control and Transient Suppression
By George Templeton Thyristor Applications Engineer
http://onsemi.com
APPLICATION NOTE
INTRODUCTION
Edited and Updated
RC networks are used to control voltage transients that could falsely turn-on a thyristor. These networks are called snubbers. The simple snubber consists of a series resistor and capacitor placed around the thyristor. These components along with the load inductance form a series CRL circuit. Snubber theory follows from the solution of the circuit’s differential equation. Many RC combinations are capable of providing acceptable performance. However, improperly used snubbers can cause unreliable circuit operation and damage to the semiconductor device.
AN1048 Datasheet
