What’s Inside an 11kW MPPT Solar Charger?
The video explores an 11kW MPPT solar charger with a high input voltage capacity of 480V DC, detailing its internal components, including IGBTs, supercapacitors, and auxiliary power supplies, while highlighting its practical application and efficiency.
MAIN POINTS FROM TRANSCRIPT
- The solar charger supports up to 480V DC input and 60A output, exceeding typical MPPT chargers.
- It can charge battery systems up to 192V, equivalent to twelve 12V lead-acid batteries or a 52S lithium pack.
- Disassembly is simple with no warranty seal, revealing a clean PCB with distinct functional sections.
- The design uses IGBTs and a flyback converter for efficient power management and cooling.
TAKEAWAYS
- The charger is priced at around $90 and offers high input voltage capability.
- A 48V system configuration provides about 3.6kW of charging power, suitable for most users.
- The supercapacitor ensures the real-time clock runs even when disconnected from power.
- Additional cooling can be achieved by adding a fan to the unused header to manage heat.