Hello,
I am not very experienced in electronics... more of a software guy then hardware! However I would like to create a typical lighting dimmer for household use and have a few questions about some circuits I have found on the Internet. I hope someone can help! Please view the following link:
http://www.epanorama.net/documents/lights/lightdimmer.html#inductive
I was looking more precisely at the paragraph entitled "Minimal circuit" about a 1/4 of the way down the page.
I really like the fact that the Q4008LT triac includes the diac. The thing is that I would like to control resistive loads as well as inductive ones. What I mean by inductive is halogen spot lights which feed off of a 120VAC to 24 VAC transformer. In summary I would like to be able to control both types of lighting.
But what confuses me is if you see the previous schematic under the paragraph entitled "Very basic circuit" it incorporates an RL filter, C1 and L1.
1) How many micro henrys is L1
2) Do I really need these two components in the schematic under the paragraph entitled "Minimal circuit" ?
3) Given the spec sheet at:
http://www.littelfuse.com/data/en/Data_Sheets/Littelfuse_Thyristor_QxxxxLTx.pdf
can this triac handle inductive loads as mentioned above or do we have to provide a snubber circuit?
All helpful feedback appreciated!
Roger
I am not very experienced in electronics... more of a software guy then hardware! However I would like to create a typical lighting dimmer for household use and have a few questions about some circuits I have found on the Internet. I hope someone can help! Please view the following link:
http://www.epanorama.net/documents/lights/lightdimmer.html#inductive
I was looking more precisely at the paragraph entitled "Minimal circuit" about a 1/4 of the way down the page.
I really like the fact that the Q4008LT triac includes the diac. The thing is that I would like to control resistive loads as well as inductive ones. What I mean by inductive is halogen spot lights which feed off of a 120VAC to 24 VAC transformer. In summary I would like to be able to control both types of lighting.
But what confuses me is if you see the previous schematic under the paragraph entitled "Very basic circuit" it incorporates an RL filter, C1 and L1.
1) How many micro henrys is L1
2) Do I really need these two components in the schematic under the paragraph entitled "Minimal circuit" ?
3) Given the spec sheet at:
http://www.littelfuse.com/data/en/Data_Sheets/Littelfuse_Thyristor_QxxxxLTx.pdf
can this triac handle inductive loads as mentioned above or do we have to provide a snubber circuit?
All helpful feedback appreciated!
Roger