AC Dimmer | Electronic Project Circuits

Posts Tagged ‘AC dimmer’

AC Motor Speed Control by SCR

This circuit will allow you to control the speed of an AC motor, for example an electric drill. The way that this circuit works is as follows. The bridge rectifier produces dc voltage from the 120vac line. A portion on this current passes through the 10K ohm pot. The circuit comprised of the 10k pot, the two 100 ohm resistors and the 50uf capacitors delivers gate drive of the SCR. The diode D1 protects the circuit from reverse voltage spikes. The ratings of the bridge rectifier and the SCR should be 25 amps and PIV 600 volts. The diode D1 should be rated for 2 amps with PIV of 600 volts. The circuit can handle a load up to 10 amps. The SCR should be very well heat sinked.
If you want the convenience of creating this project.
Please looking to AC Motor Speed Control

Source:http://home.maine.rr.com/randylinscott/aug99.htm
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Be the first to comment - What do you think? Posted by admin - February 26, 2008 at 12:20 am

Categories: Electronic Control, Motor controller Tags: AC dimmer, Electronic Control, Motor controller

Dimmer or power control

You can use it with a bulb to vary brightness of bulb, this is a live circuit it can give a shock, enclose in plastic box, the pot should have a plastic knob, use a fuse, you can also use it for temperature control of soldering irons.

Read More Source:http://www.electronics-circuits.com/schematics/arc20050710.html
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Be the first to comment - What do you think? Posted by admin - February 6, 2008 at 7:35 pm

Categories: Electronic Control Tags: AC dimmer, controlled circuit, dimmer controls

Wireless controlled lightdimmer by PIC12F629

The meaning from this design is to build it in -i.e. a shaded lamp- and to switch this lamp on and off the normal way, just like it was switched before the dimmer was build in, then you could by exception dimming the lamp more or less with your TV remote control. When you switch the power on there will follow a soft-start till the lamp burns at the previously adjusted dim level. With the ’0′ button in TV mode you can dim the lamp, turn more and less bright. The remote control should send more then one RC5-signal per button-press seeing that the first one is ignored, this does imply that when the remote button is pressed a short time, there nothing happens. With the P+ and P- button from a system at choice you can adjust the maximum and minimum dim-levels and with the ’1′ button the start-up brightness

Read More Source:http://www.picbasic.nl/lichtdimmer_uk.htm
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