|
|
|
3 |
Hints for application |
|
3.1 |
Dimensioning and selection of MOSFET, IGBT and SKiiPPACK modules |
[ 133 ] |
3.1.1 |
Forward blocking voltage |
[ 133 ] |
3.1.2 |
Forward current |
[ 134 ] |
3.1.3 |
Switching frequency |
[ 135 ] |
3.2 |
Thermal behaviour |
[ 137 ] |
3.2.1 |
Balance of power losses |
[ 137 ] |
3.2.1.1 |
Single and total power losses |
[ 137 ] |
3.2.1.2 |
Power losses of a step-down converter |
[ 139 ] |
3.2.1.3 |
Power losses in pulsed voltage source inverters/rectifiers with sinusoidal currents |
[ 140 ] |
3.2.2 |
Calculation of the junction temperature |
[ 146 ] |
3.2.2.1 |
General hints |
[ 146 ] |
3.2.2.2 |
Junction temperature during short-time operation |
[ 148 ] |
3.2.2.3 |
Junction temperature under pulse operation |
[ 150 ] |
3.2.2.4 |
Junction temperature at fundamental harmonics frequency |
[ 152 ] |
3.2.3 |
Evaluation of temperature characteristics with regards to module life |
[ 154 ] |
3.3 |
Cooling of power modules |
[ 155 ] |
3.3.1 |
Cooling devices, coolants and cooling methods |
[ 155 ] |
3.3.2 |
Thermal model of the cooling device |
[ 156 ] |
3.3.3 |
Natural air cooling (free convection) |
[ 157 ] |
3.3.4 |
Forced air cooling |
[ 157 ] |
3.3.5 |
Water cooling |
[ 161 ] |
3.3.6 |
Heatsink ratings for SKiiPPACKs on standard heatsinks |
[ 162 ] |
3.3.6.1 |
Forced air cooling |
[ 162 ] |
3.3.6.2 |
Liquid cooling |
[ 164 ] |
3.4 |
Power design |
[ 165 ] |
3.4.1 |
Parasitic inductances and capacitances |
[ 165 ] |
3.4.2 |
EMI/mains feedbacks |
[ 168 ] |
3.4.2.1 |
Processes in the converter |
[ 168 ] |
3.4.2.2 |
Causes of interference currents |
[ 169 ] |
3.4.2.3 |
Propagation paths |
[ 170 ] |
3.4.2.4 |
EMI suppression measures |
[ 173 ] |
3.4.3 |
Power units ready for installation |
[ 174 ] |
3.5 |
Driver |
[ 178 ] |
3.5.1 |
Gate voltage and gate current characteristics |
[ 178 ] |
3.5.2 |
Influence of driver parameters on switching features |
[ 181 ] |
3.5.3 |
Driver circuit structures and basic requirements on drivers |
[ 184 ] |
3.5.4 |
Integrated protection and monitoring functions of a driver |
[ 187 ] |
3.5.5 |
Time constants and interlock functions |
[ 188 ] |
3.5.6 |
Transmission of control signal and driving energy |
[ 189 ] |
3.5.6.1 |
Control data and feedback |
[ 191 ] |
3.5.6.2 |
Driving energy |
[ 191 ] |
3.5.7 |
Driver circuits for power MOSFETs and IGBTs |
[ 192 ] |
3.5.8 |
SEMIDRIVER |
[ 192 ] |
3.5.8.1 |
OEM-drivers [225], [264], [272] |
[ 193 ] |
3.5.8.2 |
SKiiPPACK-drivers [112], [264] |
[ 195 ] |
3.6 |
Fault behaviour and protection |
[ 199 ] |
3.6.1 |
Types of faults |
[ 199 ] |
3.6.2 |
Behaviour of IGBTs and MOSFETs during overload and short-circuit operation |
[ 202 ] |
3.6.3 |
Fault detection and protection |
[ 208 ] |
3.6.3.1 |
Detection and reduction of fault currents |
[ 208 ] |
3.6.3.2 |
Overvoltage limitation |
[ 211 ] |
3.6.3.3 |
Overtemperature detection |
[ 217 ] |
3.7 |
Parallel and series connection of MOSFET, IGBT and SKiiPPACK modules |
[ 218 ] |
3.7.1 |
Parallel connection |
[ 218 ] |
3.7.1 |
Parallel connection |
[ 218 ] |
3.7.1.1 |
Problems of current sharing |
[ 218 ] |
3.7.1.2 |
Module selection, driver circuit, layout |
[ 221 ] |
3.7.1.3 |
Parallel connection of SKiiPPACK modules |
[ 223 ] |
3.7.2 |
Series connection |
[ 225 ] |
3.7.2.1 |
Problems of voltage sharing |
[ 225 ] |
3.7.2.2 |
Module selection, driver circuit, snubber networks, layout |
[ 226 ] |
3.8 |
Soft switching in ZVS or ZCS-mode / switching loss reduction networks |
[ 231 ] |
3.8.1 |
Requirements and application fields |
[ 231 ] |
3.8.2 |
Switching loss reduction networks |
[ 232 ] |
3.8.3 |
Soft switching |
[ 234 ] |
3.8.3.1 |
Typical current and voltage characteristics / power semiconductor stress |
[ 234 ] |
3.8.3.2 |
Requirements on semiconductor switches and their drivers |
[ 237 ] |
3.8.3.3 |
Features of switches |
[ 239 ] |
3.8.3.4 |
Conclusions |
[ 244 ] |
3.9 |
Handling of MOSFET, IGBT, MiniSKiiP and SKiiPPACK modules |
[ 245 ] |
3.9.1 |
Sensitivity to ESD and measures for protection |
[ 245 ] |
3.9.2 |
Mounting instructions |
[ 245 ] |
3.9.3 |
SKiiPPACK: thermal testing ex works [ [265] ], [ [93] ], [ [233] ] |
[ 246 ] |
3.10 |
Dimensioning software |
[ 246 ] |
3.10.1 |
Model levels of mathematical circuit description |
[ 246 ] |
3.10.2 |
SEMIKRON software service |
[ 250 ] |