Luís Afonso
Published © CC BY

Power Supply Dummy Load

Make a dummy load for a lower voltage DC power supply. Very good if to test a power supply you got or if you are trying to make one.

IntermediateFull instructions provided5 hours5,479
Power Supply Dummy Load

Things used in this project

Hardware components

Darlington High Power Transistor
Darlington High Power Transistor
×1
General Purpose Dual Op-Amp
Texas Instruments General Purpose Dual Op-Amp
×1
resistor 1R 1/2W
×5
Resistor 1k ohm
Resistor 1k ohm
×2
Resistor 3.9k
×1
Resistor 100 ohm
Resistor 100 ohm
×1
Resistor 39k
×1
Texas Instruments lm4040-N
you can just use a 2.5V zenner diode, I used this because I only had 3.3V zenners and had this laying around
×1
10k potentiometer
×1
Thin wire
×1
18 gauge wire
×1
Capacitor 100 nF
Capacitor 100 nF
×1
big heat sink for TO220
×1
Computer 12V fan
×1
v20d-2p-1.1
×1
bolts, spacers and nuts
×1
pvc board
×1
stripboard/veroboard
×1

Hand tools and fabrication machines

Soldering iron (generic)
Soldering iron (generic)
Hot glue gun (generic)
Hot glue gun (generic)
screw driver
x-ato

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Credits

Luís Afonso

Luís Afonso

7 projects • 10 followers

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