Find the family.
Then the exact fit.

1 kW–100 MW+; 24 Vdc through hundreds of kVdc; diode/thyristor/IGBT; 6–48 pulse

0.1 kW–100 MW+; 12–1,500 Vdc input; 120 V–35 kV AC output via transformer

Watts to 100 MW+; single/three phase; isolated/non-isolated; regulated and regenerative variants

Watts to multi-MW; 5–1,500 Vdc; isolated/non-isolated, bidirectional and modular

1 kVA–100 MVA+; 50/60/400 Hz and variable frequency; static or rotary

0.18 kW–5.6 MW LV range; 200 kW–150 MW+ MV range; 200–690 V or 2.3–13.8 kV

0.18 kW–150 MW+; AC/DC motor platforms; LV/MV and engineered packages

50 W–1 MW; 24–690 V; single/three phase; single or multi-axis

200 kW–150 MW+; 2.3–13.8 kV; voltage-source, current-source and cycloconverter families

1 kW–100 MW+; four-quadrant; common DC bus or active front end

1.5 kW–50 MW; 200 V–15 kV; 3–10,000 A; bypass/contactors optional

10 A–6,000 A; 208–690 V common; cabinet or modular parallel systems

5 kVAR–100 MVAR; LV through HV; tuned/detuned and line/load filters

5 kVAR–300 MVAR; LV automatic banks through HV shunt banks; fixed or switched

600–6,500 V; roughly 10–3,600 A; half-bridge, chopper, six-pack and press-pack

650–3,300 V mainstream; tens to >1,000 A; MOSFET/diode/full-bridge modules

100–1,200 V; watts to hundreds of kW; high-frequency power supplies, chargers and converters