Questions tagged [mosfet]

A type of field-effect transistor. Use this tag for discussing MOSFET circuits.

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1answer
3k views

Driving power MOSFET from 3.3v or lower Arduino Pro Mini

I want to control a low voltage (hobby class) motor with a 8Mhz/3.3v Arduino Pro Micro. I'd like to power both from 2 alkaline cells. The motor draws approximately 1 A @ 3V with new batteries. I ...
1
vote
1answer
563 views

Selecting a MOSFET Shield

Im building an electrical system for my EBike. My bike has 2 power sources, one is the 48 volt battery, the other is a 12 power converter coming off the battery pack. I need an arduino shield that ...
2
votes
0answers
463 views

RGB LED strip with Arduino [duplicate]

I am trying to control an RGB LED strip with an Arduino. I have followed the tutorials in both of these websites: Using MOSFETs: https://learn.adafruit.com/rgb-led-strips?view=all Using LED ...
4
votes
4answers
15k views

RGB LED Strips with Arduino

I am trying to control an RGB LED strip with an Arduino. I have followed the tutorials in both of these websites: Using MOSFETs: https://learn.adafruit.com/rgb-led-strips?view=all Using LED ...
9
votes
2answers
19k views

When should I use a transistor, mosfet, and when should I use a relay? [closed]

I am used to relays some, and they are useful, especially for large loads like a incandescent light bulb or other 120V AC device. However, it seems like overkill to use a relay for a bunch of LEDs ...