Joule Chief
Joule Chief is an open source PCB design by fishPointer: a 2-layer, 84 × 98 mm board with 90 components (30 distinct parts). It is built around the INA219AXD, LTC3105XMS, AD5280, DW01 and more. Filed under power & battery.
Objectives: - Extract all usable electrical energy from used/"dead" Alkaline Cells (AA, AAA, etc.) - Measure & Log energy extraction data from each cell & deliver analytics - Efficiently convert and push energy extracted into a Li-Ion power bank
Objectives: - Extract all usable electrical energy from used/"dead" Alkaline Cells (AA, AAA, etc.) - Measure & Log energy extraction data from each cell & deliver analytics - Efficiently convert and push energy extracted into a Li-Ion power bank
Topology - INA219 - Energy Metering - LTC3105 - Low Voltage Boost Converter - AD5280 - Digital Potentiometer, 200kΩ - DW01 - 18650 Single-cell BMS - TP4056 - Single-cell 18650 Charger - FS8205 - Dual-FET package for DW01 - AO3400 - Low Voltage N-E-FET - 1N5817 - Low Voltage Schottky Diode
Built around
Parts list
90 components, 30 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 2 | INA219AXD INA219AxD | SOIC-8_3.9x4.9mm_P1.27mm | U1, U4 |
| 1 | LTC3105XMS LTC3105xMS | MSOP-12_3x4.039mm_P0.65mm | U2 |
| 1 | AD5280 | TSSOP-14_4.4x5mm_P0.65mm | U3 |
| 1 | DW01 | SOT-23-6_Handsoldering | U5 |
| 1 | TP4056 | V2_SOIC-8-1EP_3.9x4.9mm_P1.27mm_EP2.29x3mm | U6 |
| 1 | FS8205A | FS8205A_Wide | U7 |
| 10 | AO3400A | SOT-23 | Q1, Q2, Q3, Q4, Q5, Q6, Q7, Q8 +2 |
| 7 | CONN_01X06 Conn_01x06 | JST_PH_B6B-PH-K_1x06_P2.00mm_Vertical | J1, J2, J3, J4, J5, J6, J7 |
| 1 | Digital/PWM | PinSocket_1x10_P2.54mm_Vertical | J8 |
| 1 | Power | PinSocket_1x08_P2.54mm_Vertical | J9 |
| 1 | Analog | PinSocket_1x06_P2.54mm_Vertical | J10 |
| 1 | Digital/PWM | PinSocket_1x08_P2.54mm_Vertical | J11 |
| 1 | 18650 | 18650_Cell_Clip_V2 | LITH1 |
| 1 | TestPoint_Alt | TestPoint_THTPad_1.0x1.0mm_Drill0.5mm | TPx1 |
| 11 | LED | LED_0805_2012Metric_Pad1.15x1.40mm_HandSolder | D1, D2, D3, D4, D5, D6, D7, D8 +3 |
| 1 | 10U 10u | Power_Inductor_101040 | L1 |
| 7 | 0.1U 0.1u | C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C1, C3, C9, C10, C11, C12, C13 |
| 2 | 1F | 1F_Supercap | C2, C5 |
| 1 | 100U 100u | CP_Radial_D5.0mm_P2.00mm | C4 |
| 2 | 10U 10u | C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C6, C14 |
Show 10 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | 1u | C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C7 |
| 1 | 4.7U 4.7u | C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C8 |
| 2 | 0.1R | R_Shunt_2512_V2 | R1, R6 |
| 4 | 10 | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R2, R3, R7, R8 |
| 1 | 1M | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R4 |
| 1 | 220K 220k | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R5 |
| 1 | 100 | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R9 |
| 13 | 1K | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R10, R11, R12, R13, R17, R18, R19, R20 +5 |
| 10 | 10K 10k | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R14, R26, R27, R28, R29, R30, R31, R32 +2 |
| 2 | 2.2K 2k2 | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R15, R16 |
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