15 kW three-phase three-level bidirectional active front end (SiC)
← All reference designs · Vendor page: ST STDES-PFCBIDIR
| Hardware | files-only |
|---|---|
| Status | active |
| Application | dcfc, ups, industrial-aux |
| Semiconductors | SiC |
| Key devices | STM32G4 (control board STDES-PFCBIDIRC) |
| Deliverables | schematic, bom, layout, firmware |
| Conversion | AC-DC |
| Topology | 3l-generic |
| Power (W) | 15000 |
| Power basis | output |
| Input | 400 V AC |
| Output | 800 V DC |
| f_sw (kHz) | 100 (vendor-claimed) |
| Efficiency conditions | Vendor states 'nearly 99 %' without operating point; PF > 0.99 in rectifier mode. |
| Bidirectional | yes |
| Interleaved | no |
| Control | kind: digital; part: STM32G4 |
| Last verified | 2026-10-21 |
Notes
Why it is interesting: a complete three-phase AFE with grid-connection relays, soft start and active/reactive power control in inverter mode, plus firmware (STSW-PFCBIDIR). The same control board is reused in ST’s DAB reference (STDES-DABBIDIR), so the two can be combined into a full bidirectional charger.
Watch out: the exact 3-level leg type is not stated in the summary material; entered as 3l-generic. Check the
schematic pack and update it to t-type or npc. Not for sale.
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Tags: afe · inrush-control · reactive-power-control · grid-connection-relays