Power Supply
About the Power Supply PCB
Power Supply is an open source PCB design by Steven-Vokoun, published on GitHub. It is a 2-layer board measuring 30 × 60 mm, with 29 components from 18 distinct parts.
Other key parts include the LT1764A and LT3045. By type, the board carries 15 capacitors, 6 resistors, 2 ICs, 1 connector, 1 diode and 1 inductor.
It belongs with the power & battery designs in this gallery.
From the project
Independent study project creating a portable potentiostatic EIS solution. Currently under development.
Improvements I need to make in the future: - Implementation of the internal 5x switchable gains - Shift screen off to the left hand side of the enclosure, so then the power supply can be placed right next to the analog board. Also put filtering on the i2c lines. - Configuration of 3 electrode switching with a double pole relay instead to completely get it out of the circuit - Have an external calibration board to account for lead inductance and capacitance - Add a warning for when the output is hitting supply rails
Main components on the Power Supply
Power Supply bill of materials (BOM)
29 components, 18 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | LT1764A | TO220-5_T_LIT | U1 |
| 1 | LT3045 | MSOP-12-1EP_3x4mm_P0.65mm_EP1.65x2.85mm | U2 |
| 1 | Conn_01x02_Pin | PinSocket_1x02_P2.54mm_Vertical | J3 |
| 2 | Conn_01x02_Pin | PinSocket_1x02_P2.54mm_Vertical | 3.3V, 5V |
| 1 | Conn_01x01_Pin | PinHeader_1x01_P2.54mm_Vertical | +6 |
| 1 | CDSOD323-To8 | D_SOD-323_HandSoldering | D1 |
| 1 | Ferrite | L_0805_2012Metric_Pad1.05x1.20mm_HandSolder | FB1 |
| 1 | 100u | C_Radial_D8.0mm_H11.5mm_P3.50mm | C1 |
| 4 | 22u | C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C2, C3, C8, C13 |
| 4 | .1u | C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C4, C6, C7, C11 |
| 5 | 10u | C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C5, C9, C10, C14, C15 |
| 1 | 4.7u | C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C12 |
| 1 | 31k | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R1 |
| 1 | 10k | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R2 |
| 1 | 200k | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R3 |
| 1 | 453k | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R4 |
| 1 | 49.9k | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R5 |
| 1 | 33.2k | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R6 |
Power Supply design files
The KiCad project lives in the Steven-Vokoun/RPI4-and-AD5933-EIS-Analyzer repository on GitHub; these links point at the commit this page was built from.
Power Supply: common questions
How big is the Power Supply PCB?
The Power Supply measures 30 × 60 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Power Supply?
29 components, from 18 distinct parts. The full bill of materials is listed on this page.
Where can I download the Power Supply design files?
From the Steven-Vokoun/RPI4-and-AD5933-EIS-Analyzer 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 Supply design in my own project?
The repository has no license, so all rights stay with Steven-Vokoun. Use it as a reference, and ask the author before reusing the design.
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