Model family
Induction Heating Power Supplies
A WelderData model-family reference for industrial induction heating equipment used near welding and metalworking repair contexts, focused on power-stage diagnosis rather than process theory.
Database summary
Induction heating power supplies convert rectified mains power into high-frequency current through an IGBT or MOSFET inverter stage. The output energy is transferred through a resonant tank and heating coil instead of a welding arc. For repair work, WelderData treats these systems as industrial inverter power supplies with a different load interface.
The useful diagnostic split is input power, DC bus, gate drive, power-device bridge, resonant capacitor / coil network, cooling system and protection feedback. A no-heat fault is not automatically an inverter fault; it can come from missing enable, failed resonant components, cooling interlock or load-coil problems.
WelderData power-supply map
Repair sections to separate
| Section | Repair question | Typical evidence |
|---|---|---|
| Input / rectifier | Does the DC bus charge correctly? | Breaker state, bridge rectifier, bus voltage, capacitor condition. |
| Gate drive | Are the inverter switches being driven safely? | Pulse command, driver supply, bias, shutdown input, asymmetry. |
| Inverter bridge | Are IGBT / MOSFET devices shorted or weak? | Diode-mode check, collector-emitter / drain-source short, heating at startup. |
| Resonant network | Does the tank capacitor / coil path match the load? | Capacitor failure, open coil, loose joint, weak heating, abnormal current. |
| Cooling / protection | Is a flow, fan or thermal fault keeping the output disabled? | Thermal switch, water-flow switch, fan operation, overcurrent latch. |