Power Integrations and Ideal Power build solid-state breaker for 800 VDC datacenters

Power Integrations and Ideal Power are combining 1700 V InnoMux-2 GaN ICs with bidirectional B-TRAN switches for a self-powered solid-state circuit breaker targeting 800 VDC AI datacenter buses. A working prototype has been demonstrated and a reference design is in progress.

• 1700 V PowiGaN InnoMux-2 converts the 800 V bus into isolated gate-drive and sensing power
• Mechanical breakers are too slow and earlier semiconductor breakers lost too much power
• The architecture eliminates the need for an external auxiliary supply
• The companies have shown a working prototype and are developing a reference design