Free Energy Circuits
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Joule thief circuit is famous among electronics enthusiasts. It has many implementations but probably most common is very minimalist voltage booster based on In simulation file we ..
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Here is a totally different take on the Joule Thief (JT) circuit commonly found in garden lights. Instead of charging a 1.2v battery directly from the solar cell and converting the ..
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Today I am showing you how to make a very simple joule thief. A joule thief has many applications, the best gadget that I made with was a Water Powered Lamp, soon Im going to post on ..
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So the title has a lot of words in it, but that is because this instructable combines many ideas from many sources. The general idea stemmed from robomaniacs Desktop energy seed lamp..
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Yep, no transformer and no hard to get IC. But two transistors and other parts are required. I actually found this circuit by accident while roaming Colin Mitchells Talking Electronics..
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The post explains a simple 1 watt LED driver circuit using a single 1.5 V penlight cell through joule thief concept. The coil may be wound over a T13 torroidal ferrite core using a 0.2mm..
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This is probably the 1001 flashlight with a joule thief, but then again this is mine :) I used a pen style flashlight from duracell. It has a 2.2 volt lamp and two AAA batteries...
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I have many used batteries around. Remote controls, cameras, many electronic gadgets all use batteries, mostly AA size. I always felt guilty for throwing away the used batteries...
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A high power joule thief circuit is explained in the following post which can constructed by any new hobbyist. Here is the simplified drawing I biult the radiant joule thief battery charger..
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Afraid of the dark? Built a simple Joule Thief circuit and would like to go further? Just want to have a cool blue light to show off to friends? Let me present the Joule Thief 10x10 LED..
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Investigating a Paradox: Recently, I saw an energy saving LED flashlight for sale and it only used one 1.5 volt battery. I purchased this light and took it apart expecting to find a ..
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You are now showing a 1n4148 diode, and a 1 meg resistor. My question is: How can you can light the led(s) off of a 1.5 volt battery. That additional coil L3, I am not sure how it affects..
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The Joule Thief is such an easy and simple device, but what it does is amazing. It can use a battery that is not usable in any other electronic device and It is super simple to make on a..
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Retired Physics Professor, Steven E. Jones is working on a simple overunity circuit that he has seen go as high as 20 times overunity. The circuit is a derivation of the Joule Thief..
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Battery Vampires are circuits designed to suck as much energy as possible out of batteries/cells. They are not regulated drivers they are a boost circuit create a higher voltage on ..
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You would think that given how many flashlight projects I do that I actually own a lot of lights. I can change the inductor to adjust the current setpoint, but the overall current..
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The Joule thief… yes, It’s been discussed here before, and in many other places, so not something really new, but the twist is that I took the concept and it had lots of good ..
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Presented here is a significant step forward in simple, cheep, and efficient boost converter design. So to make an effective design, we must convert the current to voltage as ..
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I wanted to make 3v to 1000 volts inverter circuit. I already soldered circuit but it doesnt work. I wanted experts to look for errors in my circuit. Also I dont know if I made ..
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I have followed some threads on ringer and have seen many variants, specially the transformer used like aircore and stepdown transformer types. Some similar circuits : 1)12V-to-120V..
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R1, D3 and C1 are optional! You just need one LED. If it does not work, try to switch the LED polarity. I first tried a single 555 CCT (CirCuiT). I was annoyed by the huge current consumption...
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A low power, long life LED flashlight circuit. Electronic Design proposed a simple circuit to resolve this in a recent article. The front end of their circuit draws less than a milliamp of extra current...
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Excellent Joule thief circuit idea!..
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Well, this particular circuit is called the Joule Thief, and for those of you that arent familiar with the circuit, here is an image of it...
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Joule theif circuit and videos with circuit diagrams and explanations...
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The post discusses a joule thief circuit which drives and illuminates four 1 watt LEDs using just a single 1.5V pencil cell...
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When working with these circuits, I bought a light-meter to take the guesswork out of assessing light levels as the human eye is very bad at doing that...
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Blue and white LED drivers using joule thief circuit has been covered in this post, lets learn more. The circuit may be simulated with the following points..
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In this example we have the PWM (pulse-width modulation) output of the microcontroller driving a Joule Thief style voltage booster to run the white LED...
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Joule thieves arent just for lighting plain old LEDs!. Attiny joule thief neopixel..
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Easy Joule Thief Soldering Kit from MakersBox on Tindie..
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Like all joule thieves, it boost the voltage from a single 1.5V dry cell battery and boosts it high enough to light new ultrabright GaN, blue, green, or white LEDs. But instead of requiring a custom coil, it uses an off the shelf standard Kemet SU9H-07010....