# IGBT Snubber

Maximum collector current | ICmax = |  | A
Maximum collector emitter voltage | VCE = |  | V
Maximum collector voltage rise time | tr = |  | µs
Maximum collector current fall time | tf = |  | µs
Switching frequency | fs = |  | kHz
Duty cycle (conduction period 0..1) | d = |  | *100%
Calculate R & C |  |
Snubber capacitor | C = |  | nF
Snubber resistor (Discharge within 3*ton) | R = |  | Ohm
Discharge current IGBT during ton | Idis = |  | A
Minimum value of R to ensure that IC < ICmax | Rmin = |  | Ohm
IGBT on time (conduction interval) | ton = |  | µs
Maximum resistor power rating | PR = |  | W
Reset form |  |  |  |

Source:High frequency Switching Power Supplies, George Chryssis