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Vukovar Solar V2

1 year ago 114
  • Description
  • Documents
  • BOM
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Description

A remote-controlled PWM power management board for small (10 W - 20W) solar panels, connected to either lead-acid batteries, or trickle-charged Lithium ones (12 V target in both cases). Designed to be as much through-hole as possible, and to only use LCSC components.

Has MOSFET-controlled outputs, most of which are PWM-capable.

The circuit is designed for about 3A max current on any single line, including the solar & battery ones.

PCB designed for this enclosure: https://www.aliexpress.com/item/5PCS-Plastic-Electronic-Project-Box-Shell-Case-Enclosure-Instrument-Case-100x60x25mm-10x6x2-5CM/32850410579.html

This version uses PWM to keep the battery charged. The exact algorithm and voltages are set in firmware.

There are ports for a 433 MHz ASK/OOK receiver module, HC-06 Bluetooth module, and a HC-12 module (sharing ports with the Bluetooth module), as well as for an I2C OLED display and an AM2320 temperature & humidity sensor.

Documents

Sheet_1

PCB

BOM

ID Name Designator Footprint Quantity Mounted
1 LP2950G-50-T92-K LDOIC TO-92(TO-92-3) 1 Yes
2 DC005-2.0MM VSOL,VBAT1,VBAT2,V12V1,V12V2,V12V3,V5V1,V5V2,V5V3 DC-5020 9 Yes
3 210S-1*2P L=11.6MMGold-plated black BATBRIDGE 210S-1X2P 1 Yes
4 33uH L1 11.2*12.2 1 Yes
5 LM2596T-5.0 BUCK TO-220-5_VERTICAL 1 Yes
6 680uF C4 CAP-10*16 1 Yes
7 220uF C5,C3 CAP-D5.0XF2.0 2 Yes
8 ATMEGA328P-PU ATMEGA328 DIP-28_300MIL 1 Yes
9 FIR4N65BPG Q1,Q2,Q3,Q4,Q5,Q6 TO-251(I-PAK) 6 Yes
10 HMB1275-05B BUZZER1 B-12*7.5 1 Yes
11 10KΩ R1,R2,R3,R4,R5,R6,R8,R7,R13,R14,R15 AXIAL-0.4 11 Yes
12 39KΩ R10,R9 AXIAL-0.4 2 Yes
13 433MHz RX RX1 4P 1 Yes
14 hc-06 HC-05 HC-06 1 Yes
15 100nF C6 CAP-0.2 1 Yes
16 1uF C7,C8,C11 RAD-0.2 3 Yes
17 8MHz X1 OSC-49S-1 1 Yes
18 22pF C9,C10 RAD-0.2 2 Yes
19 1KΩ R11 AXIAL-0.4 1 Yes
20 2KΩ R12 AXIAL-0.4 1 Yes
21 CON_HEADER_PRG_AVR_ICSP-PTH ICSP HEADER_PRG_2X03 1 Yes
22 CON_HEADER_1X04 I2C M1X4 1 Yes
23 SR2100 D1,D2 DO-15 2 Yes
24 HC-12 HC-12 HC-12 1 Yes
25 AM2320 AM2320 AM2320 1 Yes
26 WJ124-3.81-2P V12V1A,V12V2A,V12V3A,V5V1A,V5V2A,V5V3A,VSOLA,VBAT1A,VBAT2A KF124-3.81-2P 9 Yes
27 IRF9640PBF QPWM TO-220(TO-220-3) 1 Yes

Attachments

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Members

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