With Instructables you can share what you make with the world, and tap into an ever-growing community of creative experts.
Tell us about yourself!
Say you are charging a super capacitor where "VBat" is located in your circuit and the voltage across the capacitor is just 2V currently and you have a 3.3V zener diode and resistor attached to the capacitor as shown in your circuit and want to start dumping the excess voltage when the capacitor reaches the 3.3V zener voltage.... My question is there a small current that flows through the resistor and the zener diode even when the zener voltage has not been reached? What happens when you hook up a 2V supple to the 3.3V zener diode as shown? How much power is lost?
Join 2 million + to receive instant DIY inspiration in your inbox.
© 2016 Autodesk, Inc.