Have you ever tried to apply the energy power supply for your laptop, but all you get is the ‘wholly smoke’ as the result?

Don’t threats your laptop like a “Guinea Pig” as you can replace it with the ELV Dummy Load.

Ok, you must be wondered what this ELV Dummy Load will benefits you?

Well, Dummy Load is the equipment that commonly used for draws power at a known rate (They also known as a ‘large resistor’). Most of the supply voltage will be dropped across the resistor, and the energy contained in the supply current is normally dumped as heat.

For saving and cut the cost here, we will use those salvaged components for this project.

If you referred to the below figure, you will discover that stripboard has been used here and this for eliminated the need to manufacture a new printed circuit board. The LM324 op-amp is responsible for the main current draw on the control board.

Remember, as this ELV Dummy Load only good for power supply testing that less than 50 volts! [source]

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