Tagged Questions

3
votes
2answers
1k views

AC fan speed control

I use this fan to cool my room, but sometimes it is too fast and I have to frequenctly turn it on and off to keep normal temperature. Maybe it is possible to reduce the speed by connecting a resistor ...
0
votes
1answer
3k views

How to slow down a 220V fan? [duplicate]

Possible Duplicates: what do I need to make 230V AC fan spin slower? 220v AC Fan regulator I have an old fan with a relay made for 4 different speeds. Currently, they are all shorted ...
1
vote
1answer
988 views

220v AC Fan regulator

i need to regulate the speed of a noisy kitchen FAN from a microcontroller (arduino board), i have been looking around and checked a lot of websites and schematics, and i think the solution should ...
1
vote
5answers
275 views

Crude/inexpensive AC to DC transformer

I am working on a circuit that is completly powered by 5VDC from a USB port. The circuit uses SSR's to turn on and off 120VAC from a standard wall plug; the 120VAC powers a high-power heater of sorts. ...