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FreakyTesla dual bridge: Grant Vieser's 120 mm DRSSTC full bridge

120 mm full bridge · scaled from loneoceans' 80 mm design · 2021

The silkscreen reads: "120mm SSTC/DRSSTC Full Bridge V2.0, Grant Vieser 15/05/2021, Based on the 80mm Full Bridge by Gao Guangyan (loneoceans)." He built it after an earlier single full-bridge coil of his lost IGBTs at a public event. This scaled-up dual-bridge version runs eight FGH60N60SMD IGBTs (600 V, 60 A) off a UD2.7C with 24 V gate drive, tested to roughly 350 A at 360 VDC, 128 kHz. The loneoceans credit is printed on the board itself. A real EasyEDA schematic and PCB layout are attached to the same forum post, titled "FreakyTesla" and dated 2021-01-07. They were missed on the first pass, because at a glance the thread seemed to carry only photos.

Schematics and photos

Sources

This is the card from the driver tree, written from what the builder published. Send corrections through the forum.