2 layers88 × 78.3 mm
2 layers88 × 94.3 mm
CargaElectronica
LaboratorioGluon/ArduDCLoad3Arduino Based Electronic DC Load.
- Size
- 88 × 94.3 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 56
- Nets
- 41
- Pads
- 159
- Tracks, vias
- 253, 14
- Pours
- 1
- Routed
- Yes
- KiCad
- KiCad 6 (file 20211014)
- Created
- 13 Nov 2021
- Updated
- 2 Jan 2026
Overview
CargaElectronica is an open-source printed circuit board by LaboratorioGluon, from the LaboratorioGluon/ArduDCLoad repository on GitHub, published under the GPL-2.0 licence. It is a 2-layer board of 88 × 94.3 mm with 56 parts on 41 nets, routed with 253 tracks and 14 vias.
It is built around the TL072 and IRFP460. Its parts include 24 resistors, 4 ICs, 3 diodes, 3 connectors and 3 switches. It belongs with the AVR (ATmega, ATtiny) boards of this library.
Main components
2README
README.mdArduDCLoad
A configurable multipurpose DC Load board developed directly on Twitch
The values of the resistors can be calculated to adapt the PCB to your needs.
With defaul values máximum values are:
- V_TEST: 15V, 3A
- V_In; 5V
And this is how it looks:
Design and customization
Here we will see how to customize the circuit for our need. The ADCL (ArduDCLoad) can be configure to mount a beefy TO-247 or small TO-220 MOSFETS. Also, it also contains the footprint for 10 resistors( L: 10mm, D: 3.6mm, P:15mm) or big chunky wirewound resistor (L:50mm, W:14mm).
Lets see how to adapt it to your need (we will calculate the values for the current values in the design)
Select V_TEST and I_TEST
Set what do you need for V_TEST and I_TEST. The circuit can only support around 5-6A máximum.
In our case
V_TEST = 15V I_TEST = 3A
Select MOSFET measuring resistor
The ideal values would be between 1 to 0.1 Ohms. The lower the current you expect, the bigget the value should be. In our case, for 3A, with 1 Ohm, we have 3V drop, so we can go with 1 Ohm. (We expect to test more than 3V)
Parts
56| Qty | Value | Footprint | References |
|---|---|---|---|
| 6 | 1/1w | Resistor_THT:R_Axial_DIN0411_L9.9mm_D3.6mm_P15.24mm_Horizontal | R9, R11, R12, R14, R15, R16 |
| 4 | 1/1W | Resistor_THT:R_Axial_DIN0411_L9.9mm_D3.6mm_P15.24mm_Horizontal | R6, R7, R13, R17 |
| 3 | TestPoint | TestPoint:TestPoint_Pad_D2.0mm | TP1, TP2, TP3 |
| 2 | 1k | Resistor_SMD:R_1206_3216Metric_Pad1.30x1.75mm_HandSolder | R2, R21 |
| 2 | 330 | Resistor_SMD:R_1206_3216Metric_Pad1.30x1.75mm_HandSolder | R3, R8 |
| 1 | 1Meg | Resistor_SMD:R_1206_3216Metric_Pad1.30x1.75mm_HandSolder | R10 |
| 1 | 10k | Resistor_SMD:R_1206_3216Metric_Pad1.30x1.75mm_HandSolder | R20 |
| 1 | 10k; 1/4w | Resistor_SMD:R_1206_3216Metric_Pad1.30x1.75mm_HandSolder | R5 |
| 1 | 1Meg | Resistor_SMD:R_1206_3216Metric_Pad1.30x1.75mm_HandSolder | R24 |
| 1 | 1k5 | Resistor_SMD:R_1206_3216Metric_Pad1.30x1.75mm_HandSolder | R22 |
| 1 | 200 | Potentiometer_THT:Potentiometer_Bourns_3296W_Vertical | RV1 |
| 1 | 220 | Resistor_SMD:R_1206_3216Metric_Pad1.30x1.75mm_HandSolder | R25 |
| 1 | 33k | Resistor_SMD:R_1206_3216Metric_Pad1.30x1.75mm_HandSolder | R19 |
| 1 | 3k3 | Resistor_SMD:R_1206_3216Metric_Pad1.30x1.75mm_HandSolder | R4 |
| 1 | 470R | Resistor_SMD:R_1206_3216Metric_Pad1.30x1.75mm_HandSolder | R1 |
| 1 | 470uF | Capacitor_THT:CP_Radial_D8.0mm_P3.50mm | C1 |
| 1 | 680 | Resistor_SMD:R_1206_3216Metric_Pad1.30x1.75mm_HandSolder | R18 |
| 1 | AnalogRef | TestPoint:TestPoint_Pad_D2.0mm | TP4 |
| 1 | Arduino_Nano | Arduinos:arduino_nano | A1 |
| 1 | Btn.BCK | Button_Switch_THT:SW_PUSH_6mm_H4.3mm | SW3 |
| 1 | Btn.OK | Button_Switch_THT:SW_PUSH_6mm_H4.3mm | SW2 |
| 1 | D_Schottky | Diode_SMD:D_SOD-323_HandSoldering | D2 |
| 1 | FAN_OUTPUT | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | J3 |
| 1 | FanCtrl | TestPoint:TestPoint_Pad_D2.0mm | TP5 |
| 1 | IRFP460 | Package_TO_SOT_THT:TO-247-3_Vertical | Q1 |
| 1 | LED | LED_THT:LED_D5.0mm_Horizontal_O1.27mm_Z3.0mm | D3 |
| 1 | LM35-LP | Package_TO_SOT_THT:TO-92_Inline_Wide | U3 |
| 1 | LOGO | GluonLib:LogoGluon_25mm | G*** |
| 1 | LOGO | GluonLib:g | G*** |
| 1 | Pantalla_LCD_16x2_i2c | Connector_PinHeader_2.54mm:PinHeader_1x04_P2.54mm_Horizontal | U2 |
| 1 | Q_NMOS_GSD | Package_TO_SOT_SMD:SOT-23 | Q2 |
| 1 | Rotary_Encoder_Switch | Rotary_Encoder:RotaryEncoder_Alps_EC11E-Switch_Vertical_H20mm | SW1 |
| 1 | TL072 | Package_SO:SOIC-8_3.9x4.9mm_P1.27mm | U1 |
| 1 | TL431DBZ | Package_TO_SOT_SMD:SOT-23 | U4 |
| 1 | Voltage_IN | TerminalBlock:TerminalBlock_bornier-2_P5.08mm | J2 |
| 1 | Voltage_test | TerminalBlock:TerminalBlock_bornier-2_P5.08mm | J1 |
| 1 | Zener 5v | Diode_THT:D_A-405_P10.16mm_Horizontal | D1 |
The 49 most common of 56 parts.
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Questions
How big is the CargaElectronica PCB?
It measures 88 × 94.3 mm and has 2 copper layers, 1.6 mm thick.
What parts does the CargaElectronica use?
56 parts, built around the TL072 and IRFP460. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.
Where can I download the CargaElectronica KiCad files?
From the LaboratorioGluon/ArduDCLoad repository on GitHub, at the commit this page was made from: the board is Schematics/CargaElectronica.kicad_pcb and its schematic Schematics/CargaElectronica.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the CargaElectronica design in my own project?
Its repository publishes it under the GPL-2.0 licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).