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STM32F334C8T6 |
x 1 | |
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ESP32-PICO-D4 |
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IAUT150N10S5N035ATMA |
x 3 | |
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LM5017SD/NOPB |
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NCP5183DR2G |
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TSV991ILT |
x 2 | |
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SN65HVD231DR |
x 1 |
Solar charge controller with MPPT
Solar charge controller with MPPT
The charge controller is controlled using a specialized STM32F334C8T6 microcontroller with a high-resolution PWM controller (HRPWM) on board. The use of this device is possible, both as a debugging complex for studying algorithms for finding the maximum power point (TMM), as well as a complete device for working in an autonomous solar power plant with a capacity of up to 500W.
1) Features:
- Input voltage: 15...60V
- Output voltage: 12/24V or 2-6S Li-ion
- Output current: 20A
- Frequency: 100 kHz
- Efficiency: up to 96%
- Type battery: AGM, GEL, Li-ion, LiFePo4
- Interface: CAN, Wi-Fi
- Size: 136 x 70 x 26 mm
2) Used protection:
- Over current battery
- Over current input
- Over voltage battery
- Over voltage PV
- PV reverse polarity (max 100V)
- Over temperature
3) Documents:
When developing a charge controller, the main emphasis is on creating reliable hardware using the best components and on implementing the most efficient TMM search algorithms. There are no electrolytic capacitors in the controller, instead of them solid-state polymer capacitors with an increased service life are used, and the thermal modes of the device are optimized, which together will ensure a guaranteed service life of at least 10 years. This will increase the reliability of autonomous mini-power plants and reduce equipment maintenance costs.
The charge controller is made on a single 4-layer printed circuit board (PCB) 1.6 mm thick of FR-4 material and a copper thickness of 1 Oz or 35 μm. When changing the thickness of the board, you need to adjust the case of the device!
All source materials for the project are distributed under the MIT license.
Solar charge controller with MPPT

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Hi! Yes, controller have algorithm charge for lead-acid, AGM, GEL, li-ion, LiFePo4, LTO.