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Voltransistor
modified 11 years ago

Triac 120 volt circuit

9
12
407
07:29:32
Turns off, on and dims the light with 120 volts A.C. Turn it around near one percent to turn it completely off.
published 11 years ago
pip
11 years ago
Well done.! Just need to make a diac and add a capacitor in the gate circuit and you have a full dimmer control. Really good.
Voltransistor
11 years ago
Thanks! I'll put those in. I never knew the purpose of a Diac.
Voltransistor
11 years ago
Thanks! That helps.
pip
11 years ago
Have ago at trying to give your diac a trigger voltage, let's say 30v then once triggered have a negative voltage let's say 15v and remain at this until the sine wave drops below this at which point it resets to the 30v trigger again ready to repeat on the next cycle. This will help tremendously. But really well done sofar.
Secuture
11 years ago
Firing angle of 45° is rather poor. Realy need some "diac'n cap" solution. ....actually as i remember 2 transistors circuits were exist to simulate triac :-) ....don't like them cuz compared to thyristor scr have more than poor ratings (that's why triacs are used only as costless light dimmers and cheap vacuum cleaner or kitchen mixer motor regulators.) ...oh i forgot to say that they have for many years leading unbeatable title of world champs in asppects of beign worst case of emi radiation element, strongest possible noise generation and power factor coruptors. I will bet than use of this element in consumer electronics will be strictly forbiden within few years.making them obsolete.
pip
11 years ago
Life wood be a lot easier if these basic elements were included in the simulator.
pip
11 years ago
Mosfets are rapidly becoming the switch of choice because of their low on losses but are a bit more difficult to switch hard and fast efficiently but new drivers are making some changes to this hence their growing use as diodes in smp rectifiers.
pip
11 years ago
Triacs can be quite if a good snubber network is used but yes you are right.
Voltransistor
11 years ago
True. Lol. :)
woodtygr
11 years ago
Nice. And yeah mos can be as efficient as a switch. I'd love to see more mosfet drivers on here!
Voltransistor
11 years ago
Mosfets are very efficient, but slow and they get damaged from static.
akovja2
11 years ago
hi bro u prob know how to make circuit to answer to shake?? tnx for answer

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