Other Parts Discussed in Thread: TLV61047, TPS629210
Tool/software:
multi_sensor_system_Power-block.pdf
Kindly review the power supply schematic.
Please download the attached PDF.
Description of Power Supply
The BQ25798 charging IC is responsible for charging the 3-cell battery and transferring power to the system.
The system boosts the delivered power by 24V (TLV61047) and steps it down by 3.3V (TPS629210).
We procured TI's EVM KIT and developed the circuit for our system by utilizing the EVM KIT circuit as a foundation.
-. Input source information
1. solar panel + MPPT :
Voc = 21.8V
VMPP = 18.6V
Maximum power point ratio = 85
voc_pct = 101 (15.75v)
2. Adaptor
12.6V, 4A
3. battery 3s 12.6V
-. Power Supply Circuit Block
1. BQ25798 Buck-Boost Battery Charger / 3s / 12.6V
2. TLV61047DDCR_12V to 24V Boostor
3. TPS629210DRLR_12V to 3.3V Buck
-. System Block diagram
Please refer to the picture.
Thank you for your review and look forward to your reply.
