98% Efficiency Analog 24V to 36V: 500W Backup and 50W Charger Reference Design for DC UPS
Description
This analog: bidirectional power conversion reference design has a discharge or boost stage of 500 W and charge or buck stage of 50 W. This reference design is made for 24-V battery pack and 30-V to 38-V bus voltage for use in DC-UPS: battery backup unit (BBU): local energy storage (LES) and DC/DC brick modules. The design’s high efficiency of >98% discharge and >95% charge optimizes the thermal management and extends battery backup time.
Features
- High efficiency of 98.3% peak and 97.4% at full load as backup power supplyDelivers high power output 20A: 30V as backup supply and charges battery at 2A during normal operationFast changeover in Compact solution with built-in heat sink (65 mm × 60 mm × 18 mm)Typical efficiency of ≈ 95%: maximum efficiency of > 98.5%Built-in analog solution for transition and CC-CV logic implemented reducing solution cost
Applications
- CPU (PLC Controller)
- Merchant battery charger
- Rack & server PSU with 48-V output
- Single phase online UPS
- Battery cell formation & test equipment
- Battery backup unit (BBU)
- Single phase line interactive UPS
Product Categories
- Power management