Re:load is an adjustable dummy load with the following features:
- No external power supply required - powered by the device under test.
- Wide range of input voltages, from 3.3 to 30 volts.
- Adjustable load from 0 to 3.5 amps (or 0 to 10 amps in the high current version)
- Up to 14 watts power dissipation (40 watts in the high current version)
- Virtually indestructible: The power FET, BTS117, has built in overtemp, ESD, and overcurrent protection. A diode protects the opamp from reverse bias.
- Load remains constant under the whole range of input voltage.
- Screw terminal and banana plug footprints.
- Low BoM cost, and easy to solder thru-hole parts.
- Test points for reading current with a voltmeter.
Read more about Re:load here, buy the regular one here and Epic Re:load here. Assembly and usage instructions can be found here.
| Designation | Re:load Part | Epic Re:load part | Quantity |
|---|---|---|---|
| Re:load PCB | 1 | ||
| Q1 | BTS117 TO-220 MOSFET | BTS141 TO-220 MOSFET | 1 |
| 12 watt heatsink | 20 watt heatsink | 1 | |
| R1 | 3 watt 0.05 ohm resistor | 1 | |
| R6 | 10k ohm potentiometer | 1 | |
| IC1 | MCP6002 8-DIP Op-Amp | 1 | |
| IC2 | LP2950 3.0v precision LDO regulator | 1 | |
| JP1 | 2 terminal 5.0mm spring terminal | 1 | |
| D1 | BAT42 Schottky Diode | 1 | |
| C2 | 33uF Electrolytic Capacitor | 1 | |
| C3 | 1uF Ceramic Capacitor | 1 | |
| C1 | 0.1uF Ceramic Capacitor | 1 | |
| R3 | 510k ohm resistor | 1 | |
| 160k ohm resistor | 1 | ||
| 75k ohm resistor | 1 | ||
| R4, R5 | 10k ohm 1% resistor | 2 | |
| R7 | 100 ohm resistor | 1 | |
| Packet of thermal paste | 1 | ||
| M3 6mm machine screw | 1 | ||
| M3 nut | 1 | ||