Power Systems
About the Power Systems PCB
Power Systems is an open source ESP32 PCB design by nick19curtin, published on GitHub. It is a 2-layer board measuring 367.8 × 97.5 mm, with 113 components from 48 distinct parts.
Its main chip is the ESP32-DEVKIT-V1, from the ESP32 family. Other key parts include the INA296A3IDDFR, DS1812R-10+T&R, LM2596S-3.3, LM2596S-5 and LM358. By type, the board carries 46 resistors, 24 ICs, 15 transistors, 14 capacitors, 6 connectors and 6 diodes.
It belongs with the power & battery designs in this gallery.
Main components on the Power Systems
Power Systems bill of materials (BOM)
113 components, 48 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | INA296A3IDDFR | SOT65P280X110-8N | IC1 |
| 1 | DS1812R-10+T&R | 21-0051H_MXM-M | U6 |
| 1 | ESP32-DEVKIT-V1 | MODULE_ESP32_DEVKIT_V1 | U21 |
| 1 | LM2596S-3.3 | TO-263-5_TabPin3 | U22 |
| 1 | LM2596S-5 | TO-263-5_TabPin3 | U23 |
| 2 | LM358 | DIP-8_W7.62mm | U25, U26 |
| 6 | LM2903 | DIP-8_W7.62mm | U27, U28, U29, U30, U31, U32 |
| 7 | LMV331 | SC70-5_DCK_TEX-M | U33, U34, U35, U36, U37, U38, U43 |
| 4 | SN74AHC1G00DBVR | DBV5-M | U39, U40, U41, U42 |
| 2 | IRLR7843 | TO-252-2 | Q19, Q21 |
| 1 | PMOS | TO-252-2 | Q20 |
| 12 | 2N7002 | SOT-23TO-236_318-08_ONS-M | Q26, Q27, Q28, Q29, Q30, Q31, Q32, Q33 +4 |
| 2 | Conn_01x02 | TerminalBlock_Phoenix_MKDS-1,5-2_1x02_P5.00mm_Horizontal | J1, J8 |
| 4 | Conn_01x19 | PinSocket_1x19_P2.54mm_Vertical | J2, J4, J5, J6 |
| 1 | SMCJ45A | D_SMC | D12 |
| 2 | SS34 | D_SMA | D13, D14 |
| 1 | 1.25V | D_SOD-123 | D15 |
| 1 | D_Zener | D_0805_2012Metric | D16 |
| 1 | D | D_SOD-123 | D17 |
| 2 | 33uH | L_Bourns_SRR1208_12.7x12.7mm | L3, L4 |
Show 28 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 2 | 680uF | C_0603_1608Metric | C31, C32 |
| 7 | 0.1uF | C_0805_2012Metric | C33, C34, C36, C38, C39, C41, C42 |
| 2 | 220uF | C_0603_1608Metric | C35, C37 |
| 1 | 4.7uF | C_1206_3216Metric | C40 |
| 2 | 100nF | C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C57, C58 |
| 2 | 100 | R_0805_2012Metric | R72, R74 |
| 1 | 3.3M | R_2512_6332Metric | R73 |
| 3 | 1M | R_2512_6332Metric | R75, R79, R80 |
| 2 | 10k | R_2512_6332Metric | R76, R77 |
| 1 | 1k | R_2512_6332Metric | R78 |
| 1 | 1.5k | R_1206_3216Metric_Pad1.30x1.75mm_HandSolder | R111 |
| 1 | 1.6k | R_1206_3216Metric_Pad1.30x1.75mm_HandSolder | R112 |
| 2 | 18k | R_1206_3216Metric_Pad1.30x1.75mm_HandSolder | R113, R131 |
| 9 | 10k | R_1210_3225Metric_Pad1.30x2.65mm_HandSolder | R114, R123, R124, R132, R138, R139, R140, R141 +1 |
| 1 | 124K | R_1206_3216Metric_Pad1.30x1.75mm_HandSolder | R115 |
| 2 | 30k | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R116, R133 |
| 2 | 68k | R_1206_3216Metric_Pad1.30x1.75mm_HandSolder | R117, R134 |
| 2 | 2k | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R118, R135 |
| 1 | 50k | R_1206_3216Metric_Pad1.30x1.75mm_HandSolder | R119 |
| 1 | 47k | R_1206_3216Metric_Pad1.30x1.75mm_HandSolder | R120 |
| 1 | 390k | R_1206_3216Metric_Pad1.30x1.75mm_HandSolder | R121 |
| 1 | 2Meg | R_1206_3216Metric_Pad1.30x1.75mm_HandSolder | R122 |
| 7 | 220 | R_1206_3216Metric_Pad1.30x1.75mm_HandSolder | R125, R126, R129, R130, R136, R137, R147 |
| 2 | 1k | R_0402_1005Metric_Pad0.72x0.64mm_HandSolder | R127, R128 |
| 1 | 13k | R_1206_3216Metric_Pad1.30x1.75mm_HandSolder | R142 |
| 1 | 4.3k | R_1206_3216Metric_Pad1.30x1.75mm_HandSolder | R143 |
| 1 | R_Variable | MF52C1103F3380_Thermistor-317-1376-ND-MF52C1103F3380 | R145 |
| 1 | 110k | R_1206_3216Metric_Pad1.30x1.75mm_HandSolder | R146 |
Power Systems design files
The KiCad project lives in the nick19curtin/PowerSystemsPL-BMS repository on GitHub; these links point at the commit this page was built from.
Power Systems: common questions
What microcontroller does the Power Systems use?
The Power Systems is built around the ESP32-DEVKIT-V1, from the ESP32 family.
How big is the Power Systems PCB?
The Power Systems measures 367.8 × 97.5 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Power Systems?
113 components, from 48 distinct parts. The full bill of materials is listed on this page.
Where can I download the Power Systems design files?
From the nick19curtin/PowerSystemsPL-BMS repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.
Can I use the Power Systems design in my own project?
The repository has no license, so all rights stay with nick19curtin. Use it as a reference, and ask the author before reusing the design.
Can I test firmware for the Power Systems without the hardware?
Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug ESP32 firmware against it before you order a PCB.
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