How do professional designers conveniently boost their circuit so that sleep mode remains in the uA range?
How do professional designers conveniently boost their circuit so that sleep mode remains in the uA range??#
What makes you think this is the case?
Most likely, your application does not require a boost converter. If it does, please supply the details so that people can make informed comments.
Also, can the voltage affect frequency and therefore affect internal clock speed of your uC?
Can you point to some examples;Where a device uses a 1.2V Alkaline battery with boost converter, and has a sleep current of a few uA ?
The ADC is ratiometric, which means that the representation that it outputs is the ratio of the input voltage to the ADC reference voltage. So, if you power a voltage divider with Vcc, and also use it as the ADC reference voltage the result does not depend on Vcc.
They are always very helpful and complete
I believe the Attiny43u has an internal boost reg and can have a vvery low output current. I thought it could be possible to do the same outside of a single IC someway?Do you have any link to explainations/tutorial on how to do this (use it as the adc ref voltage)? I do not power the v divider with vcc though, i use an interrupt digital pin to do it so i can wake the uC when pressing any button. Thank you for your answers. They are always very helpful and complete
Your thread is not complete. It's lacking a diagram of the setup (real or imagined), the type of uC(s), and code. Even something crude like a pencil drawing is helpful.
Most people use about 3V (2xAA, 2xAAA, CR2032, 1xLiPo) for low power operation, sometimes for years without battery change. This is covered in Nick Gammon's excellent tutorial on low power operation.
jremington linked to a great tutorial by Nick Gammon on reducing power consumption for ATMega328P & the ATTiny85. I usually use the Digispark ATTiny85s (or clones) in my simple projects...that I seem to make ultra complicated. A couple other articles I have saved for low power operations are:Technoblogy ATTiny Low PowerSleep Modes on ATTiny85Definitely read up on using a transistor as a switch controlled by the ATTiny or Arduino.Lastly, please DON'T use my drawing for anything other than a general layout. It is filled with errors and probably wouldn't work, but it does depict using transistors as a switch.
Sometimes I want to add a boost converter so I can power it with a single cell, or use it with an application that requires constant voltage.
Sorry if this is a noob stupid answer but what is the voltage requirement for a sleeping processor?
I believe the Attiny43u has an internal boost reg and can have a vvery low output current. I thought it could be possible to do the same outside of a single IC someway?