Hello.
My name is Victor.
Recently I was given a little wireless drill which looks very comfortable and have kit
many bits.
However, the drill turned out to be inefficient due to design flaws.
The drill has a weak battery and a weak charger.
Today I will try to fix these shortcomings by dint of connect this drill for 12-volt
battery.
This is not an easy task, you will need a 4.8 volt voltage.
If you connect it to the 12-volt battery, the drill will quickly break down or burn.
I need to make an adapter, 12/4,8 volts.
How can I make a simple and powerful adapter?
I remembered about the diodes then.
The diode conducts current only in one direction, but also on it the voltage drops due to the
electronic barrier.
Need to use power diodes, such as 10 amperes.
I connected the diode in series with the bulb to measure the voltage drop on it.
My diode has of 0.78 volt drop.
So that from 12 volts to five volts should be connected in series of 9 diodes, but this
is incorrect, actually turned out to be sufficient 5 diodes.
Then the drill will run at full capacity.
Please note – the
diodes have a white stripe and it should be oriented in the same direction.
So now we need to connect these diodes in series, one after
the other.
I soldered contacts for a reliable connection.
I use a heat-shrinkable tubing for insulation diodes, it looks very good.
Conclusions diode is not affected by bending, if fasten rails of wood or other material.
Now my adapter is beautiful and durable.
I attache the alligator clips on
the ends, for convenience.
So, you can experience the drill.
Of course this drill is not powerful as large cordless drill, but it fits perfectly for
small jobs, it has even illumination of the drilling spot, which is convenient in dark
places.
That's all.
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Goodbye.