How can I design a high-output power inverter for low input voltage?

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Designing a high-output power inverter for low input voltages of 0.1-0.3 volts requires clarity on desired output voltage and current specifications. The discussion highlights the importance of providing specific details to receive effective advice. Suggestions include exploring the "joule thief" circuit for low-voltage applications and considering MOSFETs for synchronous rectification. Additionally, specialized transformers may be necessary for efficient power conversion. Off-the-shelf solutions are limited, but certain converters like the NCP1400 series can operate at these low input levels if the output is initially boosted.
tommycaiden
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Hey guys, I need to make a power inverter that will take in .1-.3 volts, and the output needs to be as high as possible.
 
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tommycaiden said:
and the output needs to be as high as possible.
Is that the output voltage or current you'd like to allow be as high as possible? If output voltage, what do you consider acceptably high, and at how many milliamps? What is the application you have in mind?

You really do need to be less vague in framing requests for advice here, to encourage those who may be able to help you. You'll discover that mind-reading is not everyone's specialty. :wink:
 
best I know of the the joule thief (search for it). Not sure how low it actually goes though.
 
If you're converting any significant amount of power, you'll have a lot of current. MOSFETs designed for synchornous rectification and a highly specialized transformer with a copper strap primary are probably the best bet.
I don't think there's anything like that off the shelf.
Some converters, like the NCP1400 series, will operate down to .3 volts if you raise their output to a couple of volts first.
 
I am trying to understand how transferring electric from the powerplant to my house is more effective using high voltage. The suggested explanation that the current is equal to the power supply divided by the voltage, and hence higher voltage leads to lower current and as a result to a lower power loss on the conductives is very confusing me. I know that the current is determined by the voltage and the resistance, and not by a power capability - which defines a limit to the allowable...

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