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volatage booster Answered

Hi every one . i need to know if its possible to boost DC voltage from 0.1V source to 3.8V DC output and how to do it  thx for answer :)

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One of my projects that I have on instructables is capable of boosting .3 volts up to a number of volts using a DC to DC converter. The clincher is using old fashioned Germanium transistors which can be quite expensive.

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Downunder35m

3 years ago

Simply forget it, won't work.
Too lazy to explain all the reasons, if interested ask Google.

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Downunder35mToga_Dan

Reply 3 years ago

low input voltage booster

Quite on top you see Texas instruments with 0.7V input.
0.1V is below the working voltages of standard electronics, whatever you use the losses will be higher than the input.

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Toga_Dan

3 years ago

What are you using? Lemons + coins?

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steven4872

3 years ago

DC to DC converters do this. However to do it you need transistors that work a 0.1V. Most transistors require a higher voltage to operate effectively. As a result most DC to DC converters stop working when the voltage drops below one volt. About the only way you could do this is to power the DC to DC converter with a seperate voltage source (a battery) and it would then take the 0.1 source voltage and increase it to 3.8V. But then you run into a new problem. 0.1V source is probably very low power. The DC to DC converter can increase the voltage but it cannot increase the power (Watts) available (in fact you will likely loose some power. You may not have enough power to do anything practical.

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Toga_Dan

3 years ago

The simplest way is to have 38 of your 0.1V sources in series.

When I've wanted to boost low v DC sources, I've done a chopped DC waveform produced by a capacitor charge/discharge circuit. This chopped DC can be fed to a transformer. I don't know about running this with so low a voltage, tho.