Tag: regulator

Failed to Fix Your Cell Phone? Make a Robot

Failed to Fix Your Cell Phone? Make a Robot

Hi. Do you remember when I broke my cellphone by my homemade hand crank charger? (old video) …it’s getting much hotter now. OH, NO, NO NO NO!! NO!!! (idiot) Now, I want to fix my phone. My suspicion is that I blew up the chip that’s responsible for charging and monitoring the battery, and cellphones …

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Voltage regulator tutorial & USB gadget charger circuit

Voltage regulator tutorial & USB gadget charger circuit

In this video I’m going to talk about linear voltage regulators and show youhow to use one to charge 5 volt USB devices like phonesand MP3 players.So what is a voltage regulator?A voltage regulator is a device that takes an unregulated input voltage that couldbe fluctuating over time, and spits out a perfectly regulated constant …

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LM317 Adjustable Voltage Regulator Tutorial

LM317 Adjustable Voltage Regulator Tutorial

In a previous video I talked about fixed voltage regulators that take an unregulated voltageon the input and supply a tightly regulated voltage on the output.For example the popular 7805 is used to create a constant five volt supply.In this video I’m going to show you how to use the LM317 adjustable voltage regulatorto create …

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