High-current bidirectional voltage converter designed for drone power systems, capable of handling extreme current loads while maintaining stable voltage output for sensitive avionics.
| Parameter | Specification |
| Input Voltage | 3-8S (12.6-33.6V) |
| Output Voltage | BEC-5V4.5A and 12V3A |
| Continuous Current | 150A (200A peak for 10s) |
| Efficiency | 96% @ 24V→12V conversion |
| Switching Freq | 1MHz (synchronous rectification) |
| Dimensions | 65×50×15mm |
| Weight | 85g |
• Current Sense Resistors: 2× Manganin alloy resistors (model 5930), 0.3Ω ±1%
• Current Monitoring: INA169NA precision current comparator IC
| Protection Type | Threshold |
| Overcurrent | 200A (10 seconds) |
| DCDC | 2x independent DCDC-SCT2650 outputs |
| BEC overload protection | 5V exceeds 4.5A, 12V exceeds 3A, automatically disconnect the output to prevent short circuit burning |
| Capacitor filtering | 22x 22UF ceramic capacitors + 1x 1000UF electrolytic capacitor, stable output |
| Reverse Polarity | -40V |
| Thermal Shutdown | 125°C |
