High efficiency: ultra-wide input (20 VDC to 375 VDC) isolated power supply reference design
Description
This reference design uses the UCC28C42 boost controller and the UCC28780 active-clamp flyback controller to generate an isolated output of 24 V at 3.5 A over an ultra-wide input voltage range of 20 V to 375 V. The design also uses the UCC24612 synchronous rectifier controller on the secondary side. Zero voltage switching (ZVS) ensures high efficiency over a wide operating range.
Features
- Zero voltage switching (ZVS) provides high efficiency (94% peak value)Two-stage power supply allows an extremely wide input range (20 V to 375 V)Adaptive burst-mode feature maintains high efficiency even at light loadsSynchronous rectifier using drain-to-source voltage sensing
Applications
Product Categories
- Power management