Questions tagged [3.3v]

I'm trying to drive a 2.5A/12V load controlled by a 3.3v micro-controller. In the past I've used a TIP120. In this case I'm trying to drive a solenoid and the voltage drop I'm getting across the TIP120 is too high. I was looking at other options…

I did a simple differantial amplifer for 0-3.3V output. But, as you see I got -3.3V output because gain. I need a shifter circuitry for non-negative output. Can someone help me? Thanks a lot.

I have a distance measuring sensor unit that I am having some issues with, its a Sharp GP2Y0D815Z0F Digital Distance Sensor (Datasheet) that takes a 2.7-6.2v DC input. When plugged directly into my 3.3v power source (a NodeMCU esp8266) via a 10cm…