AC Dimmer Circuit Using Phase Angle Control
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- Опубликовано: 31 май 2024
- Dimmer circuits which utilize Phase Angle Control are used to efficiently adjust the AC power delivered to AC loads by controlling the conduction angle. In this element14 presents episode, Surbhika has developed this kind of circuit to enable her to dim commonly used AC light bulbs in her home. She found it an interesting DIY project, as it meant understanding one of the fundamental concepts in power electronics and control theory to create usable hardware that could be built on a budget.
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#0:00 Welcome to element14 presents
#0:41 Overview
#0:54 Working Principle
#3:44 Zero Crossing Detector Circuit
#4:44 AC Load Driver Circuit
#5:53 Testing
#7:13 Give Your Feedback
#acpower #lightbulb #lightbulbs #dimmer #optocoupler #energysaver #energysavings #energysavingtricks 
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It would be handy to have a method of quickly testing led lightbulbs , to see if they are dimmable , this circuit would be a great base for such a project!
Hmm 🤔 ..why did i not think it earlier 😅
Great presentation... one small point of order, Phase Angle Control is a 'Noisy' control method because of the discontinuous nature of the output (it is only low noise when switching occurs at the zero crossing assuming that current and voltage are in phase with each other)
Hi thank you for the video.
Yes this was a commonly used device for old incandescent lamps and even infra red heaters, we now though use almost exclusively LED lamps in the UK.
True that the circuit is applicable for controlling power to be delivered to almost all AC loads. But it should be noted that special care in form of Flyback diode is necessary while handling reactive (inductive or capacitive) loads.
Such a simple circuit but quite beautiful.
Can u Help me ? My dimming is working ok but , whenever i m using other non dimmable load throgh relay switching , my dimmable light is flickering , can u have any suggestion?
Could this control a AC motor?
would this circuit be able to control a ac motor? With modification obviously
Yes. With usual precautions that come with inductive loads.
hmmm what would happen if the pulses and AC power are out of phase?
I guess you mean when synchronisation is broken. Then you might end up increasing the light when you actually wanted to dim it. It'll become random.
Gonna try this soon
Appreciate your explanation skills, you made it quite easy to understand 🤝
💡💡💡
Even a layman can understand your subject, keep the good work going!
I am stumped! Judging by the video, you are using 2 RPis? one to read the AC mains supply analog sine wave, feed that through an opotocupler to the triac and second optocupler somehow (connection is unclear as the video never shows the full project in one image), than use the second pico to send the control to the led bulb via the optocupler and the triac, again unclear from the video footage how exactly they are connected... This can`t be right! surely i misunderstand the whole thing... Perhaps the first part (Zero crossing detector circuit) is a demo of how to separate the mains from the RPi 3v3 voltage, and the second part (AC load driver circuit) is the full project and has nothing to do with the first part?
AC Dimmer: "U Can't Zap This"
Hii didi, where can I follow you??
She's in LinkedIn, just follow.
Surbhika is on the element14 Community - you can follow her projects and product reviews there.
I have to admit.. I was expecting a traditional phase angle controller built around a triac, not something built around a micro.
Hey how can we join element 14 as a content creator?
1. join the element14 Community -
2. create projects, share information, participate in contests, apply to get some free product and write reviews
3. connect with element14 presents on the Community and let us know you're interested in making content
Great... I am gonna do it for sure💯
Interesting but no good for dimmable led
i can't understand your accent, but are you really suggesting hobbyists to play with 220-240Vac? you want to get sued?
We're Indians we play with AC like our childhood friend.
Didn't understand at all. Accent is unrecognizable, sorry.
Go cry in the corner, when you feel like you're done turn on subtitles.
@@jagadishk4513 Get lost. Thanks