TIDA-00858 implements a high-efficiency approach to fullbridge rectifier. This reference design replaces diodes with four N-Channel MOSFETs,combined with LM74670-Q1 smart diode controllers in a full-bridge rectifier configuration. LM74670-Q1 is an effective zero-IQ replacement of diode loss. This design can produce a rectified DC voltage without diode forward voltage drop for AC-input voltage up to 45 V. It can handle AC input of 300-Hz frequency and up to 100-A output current with less thermal management compared to a schottky diode rectifier.
Features
- Supports AC-input voltage up to 45 V
- Fast response to dynamic current reversal: < 5 µsec
- More efficienty for high-current rectifiers
- Supports AC-input frequency up to 300 Hz
- Zero IQ and smaller reverse leakage current compared to diodes rectifier