Triac is heating too much
Hello everyone, and thanks for reading this..
I'm trying to turn on a 500W load using a triac. The load is made of incandescent lamps. On 200W the temperature rises too much. I'm not sure if I just need another heat sink, or if the circuit is poor design. I try changing the 1K resistor for a 470, but it didn't change anything
Thank's very much for the help!
The temperature measurement is done by a lm35 attached to the triac with epoxy. (see picture below)
The temperature is at the table below. It was measured after 1,5 minutes, and I'm sure after more time it would have risen even more
Bellow is a picture of the setup. Not pretty, but cables are well connected
ps: sorry for bad english
Hello everyone, and thanks for reading this..
I'm trying to turn on a 500W load using a triac. The load is made of incandescent lamps. On 200W the temperature rises too much. I'm not sure if I just need another heat sink, or if the circuit is poor design. I try changing the 1K resistor for a 470, but it didn't change anything
Thank's very much for the help!
The temperature measurement is done by a lm35 attached to the triac with epoxy. (see picture below)
The temperature is at the table below. It was measured after 1,5 minutes, and I'm sure after more time it would have risen even more
Bellow is a picture of the setup. Not pretty, but cables are well connected
ps: sorry for bad english
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