Manufacturers generally provide the main parameters of each functional unit in the module. Table 1 is the specific technical parameters of mubw15-12t7 module of IXYS.
Table 1mubw15-12t7 specific technical parameters
Three phase rectifier bridge circuit breaker three phase inverter NTC
VRRM=1600VVCES=1200VVCES=1200VR25=5.0kΩ
IFAVM=38AIC25=30AIC25=30AB25/50=3375K
IFSM=300AVCE（sat）=1.7VVCE（sat）=1.7V
Among them, the circuit breaker and three-phase inverter provide all the technical parameters of IGBT chip;
The main parameters of three-phase rectifier bridge are as follows:
·VRRM: maximum reverse peak working voltage, peak value, and the maximum working voltage parameter of one diode.
·Ifavm: maximum forward average current, maximum rectifier current, related to junction temperature or ambient temperature.
·IFSM: maximum forward surge current, maximum forward peak current, related to junction temperature or ambient temperature.
The technical parameters of NTC are as follows:
·R25: rated zero power resistance value, NTC cold resistance value, resistance value at 25 ℃, typical value. R25 is the nominal resistance of NTC thermistor. Generally speaking, "NTC is how much resistance" refers to R25.
·B25 / 50: thermal constant, resistance temperature characteristic of NTC resistance material, 25 / 50: resistance temperature of 25 ℃ and 50 ℃ respectively. According to R25 and B25 / 50;. R50 can be measured and calculated with the following formula:
