Power Bridges
Power bridges and integrated power modules group together the semiconductor sub-assemblies that convert and rectify electrical energy in your industrial equipment.
Combining rectifiers, IGBT stages and freewheeling diodes in a single package, such as Infineon PIMs (Power Integrated Modules), they supply stabilised power to variable speed drives and power rectifiers.
Discover our selection of new and refurbished power bridges for component-level maintenance and repair of your drive boards and power supplies.
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FAQ
A conventional IGBT bridge contains only the inverter stage (output switching). A power integrated module (e.g. Infineon FP25R12KT4_B15) combines the three-phase input rectifier bridge, the brake chopper and the three-phase IGBT inverter bridge in a single package, providing a complete power conversion solution.
A failure usually shows up as the circuit breaker tripping instantly when connected to the mains, no voltage on the DC bus, phase imbalance at the output, or an irreversible hardware fault code on the unit's control.
Yes, using a multimeter's diode test function, you can check, with the power off, the forward and reverse behaviour of the p-n junctions of the rectifier diodes and the IGBT anti-parallel diodes. Any reading showing a dead short (0 V) or an abnormal open circuit confirms the module is destroyed.
Besides checking the gate driver circuit beforehand, it is crucial to clean the heatsink surface, apply an even layer of thermal paste to prevent overheating, and observe the recommended tightening torque on the package to avoid mechanical stress on the component.
A conventional IGBT bridge contains only the inverter stage (output switching). A power integrated module (e.g. Infineon FP25R12KT4_B15) combines the three-phase input rectifier bridge, the brake chopper and the three-phase IGBT inverter bridge in a single package, providing a complete power conversion solution.
A failure usually shows up as the circuit breaker tripping instantly when connected to the mains, no voltage on the DC bus, phase imbalance at the output, or an irreversible hardware fault code on the unit's control.
Yes, using a multimeter's diode test function, you can check, with the power off, the forward and reverse behaviour of the p-n junctions of the rectifier diodes and the IGBT anti-parallel diodes. Any reading showing a dead short (0 V) or an abnormal open circuit confirms the module is destroyed.
Besides checking the gate driver circuit beforehand, it is crucial to clean the heatsink surface, apply an even layer of thermal paste to prevent overheating, and observe the recommended tightening torque on the package to avoid mechanical stress on the component.