Reference Designs
120V AC 200W: 90% Efficiency: Interleaved Flyback for Battery Charging Applications Reference Design
Texas Instruments
TIDA-00200 proposes an interleaved flyback topology for battery charger applications that require an output power level of ~200 W with a minimized bill of material. Besides the actual electronic components: the efforts for cooling are a major contributor to the overall design cost. By taking advantage of the LM5032 high voltage dual interleaved current mode controller: the design accomplishes great efficiency of 90% at full load and spreads out the heat for reduced cooling efforts. A fan is typically not needed. The need for smaller form factor heat sinks provides additional design flexibility.
Features
- Input: 100 V to 120 V +/- 10% AC 50/60 HzOutput voltage 21 V (5 Li-Ion battery cells): up-to 9.5-A charge current90% efficiencyInterleaved flyback topology based on LM5032 high voltage dual interleaved current mode controllerProgrammable line under voltage lockout and cycle-by-cycle current limitFeedback based on TLC272 dual single supply operational amplifier
Applications
- Appliances: battery charger
- Industrial AC-DC
- Drone accessories
Product Categories
- Power management