Hi everyone, looking to modify this charger from 9v output to 2.4v output for another purpose. Can anyone provide me with a circuit diagram please or identify the zener diode? Frank.
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You dont just modify a pcb, or ask someone to do it without providing a schematic. You should look up Buck Converter circuits on the web. They allow you to take an input voltage and convert it down to a lower voltage.
Experiment and have fun. If you need something quickly, it's probably easier to buy something appropriate than to invest time and money on a simple power adapter.
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@portboy Other things you can do depending in what your powering with it could be to use a voltage regulator or resistor to step downthe 9v to 2.4v. Or even better, just get a 3v power source and just use a resistor to drop 3v to 2.4v as thats easier and might even be the same price as a buck converter.
I couldh've designed 2.4v power supply but am trying to utilise what I have, hence the need for a circuit diagram. I've been trying to create the circuit from PCB but one side has standard components and the other side has micro components so proving difficult.
Reverse engineering a pcb is always challenging. Just take the output from your adapter and feed it into a variable voltage regulator or buck converter module to get your 2.4V. The advantage of the buck converter is less heat dissipation.
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