Charge Pump Tutorial (Positive AND Negative)

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Charge Pump Tutorial (Positive AND Negative) - Ec-Projects

Рет қаралды 22,948

10 жыл бұрын

In this video I talk about Charge Pumps. We go through the theory - then build it in the bread board. This video shows you how to double or triple your voltage and how to invert it, say from +9v to -9v (or even down to -18v). I also show how to add more stages so you can get even higher (or lower) voltages.

Пікірлер: 17

@FirstWizardZorander 10 жыл бұрын

An incredible video. You make charge pumps so easy to understand. Thank you!

@EcProjects 10 жыл бұрын

You are welcome ! And thank you !

@ToddFun 10 жыл бұрын

Such a great little trick to get other voltages, positive as well as negative. And I really like how you summarize using different devises to create the clock and how to up the amps a bit. Great tutorial video. Keep up the great work!

@EcProjects 10 жыл бұрын

Thanks Todd! :)

@educationaltechnology8363 2 жыл бұрын

Actually… I'm speechless thank you nailed all my questions you got into my mind and addressed all my concerns I can't thank you enough.keep it up man your meticulous explanation is priceless.

@pokkypanda 4 жыл бұрын

Fantastic video! Effortlessly pedagogical, going through a confusing subject and making it seem easy! Well done!

@salilkamra89 2 жыл бұрын

Very nice explanation and initiative. Please keep it up.

@happyhippr 6 жыл бұрын

thanks a ton, totally needed and using this in a circuit rn.

@kmmaran 6 жыл бұрын

Thanks for this tutorial very clear and understandable. For negative charge pump where do you connect the dc supply -9V. Thanks.

@orides5976 4 жыл бұрын

I saw a circuit where two outputs from a microcontroller alternate high and low to create a higher voltage. The circuit uses three diodes in series , and two capacitors in series with each micro's outputs. Can you explain the working of this kind of circuit? Thank you!

@belhajelmehdi1676 2 жыл бұрын

hi , thank you so much for this amazing video, H have one question how can we select the adapt value for the Capacitors? thank you again :)

@muratcosar3873 Жыл бұрын

I need 10-12V 5mA output.

@seeindarkness 10 жыл бұрын

Why does +9 on the positive and +9 (when clock is high) on the negative "drives" the positive side to +18 v ? who is adding the voltage, I'm trying to understand the physics.

@EcProjects 10 жыл бұрын

It works because what we start with at the input is DC. What we add with the oscillating signal through the capacitor is AC (It then gets turned into DC by the Diode to the right). It is a bit like when you set an oscilloscope to AC coupling, just in reverse. With the scope you want to remove the DC component of a waveform to look at the AC. Here we are adding an AC component on top of an already existing DC.. I hope this helps :)

@aerotro 10 жыл бұрын

I am in fact planning on building a HUGE voltage doubler maybe similar to charge pumps, as want to double 12 volt to 24 volt to assist the load on my new/old UPS whose Lead acid batteries are a bit worn out. Will utilize the power in my solar battery running LION I found this circuit which is easy to modify using bigger mosfets and more output capacitors www.eleccircuit.com/converter-dc12v-to-24v-2a-by-ic-40106-and-mosfet-buz11/

@noweare1 5 жыл бұрын

I know this is years later but the inverted output doesn't go from 0 to 9 volts only about 0 to 1 volt. Doesnt matter what is used for the inverter either. Strange.

@noweare1 5 жыл бұрын

Never mind, I was using LTspice I had to change the model for an output of 9 volts, default is 1 volt.