hhhsssmmm
Member level 1
230 transformer
Hello
Please can some one help me with the following problem.
I wish to control the mains 230V feeding to transformer (230/12) which runs a halogen lamp.
However i wish to interface this design and automate it by using a PIC18F series.
I know there are serveral solutions like frequency control, voltage control and wave chopping action via TRAIC.
Im aware that its not that simple with TRIAC based light dimmer to simply control an inductive load.
I also tried this circuit (fan dimmer) which i found from the internet and interfaced the TRIAC with the PIC at its gate section.....
**broken link removed**
This circuit worked , however the POT over heated too quickly. I tried replacing it with a 5W 1kOhm resistor...but that too over heated.....i then tried a simple short circuit by a wire. Now this solved the over heating problem at this end....however now the TRIAC is over heating.....
Please Please help on how to minimize the excessive heating in the circuit?
Shrooms
Hello
Please can some one help me with the following problem.
I wish to control the mains 230V feeding to transformer (230/12) which runs a halogen lamp.
However i wish to interface this design and automate it by using a PIC18F series.
I know there are serveral solutions like frequency control, voltage control and wave chopping action via TRAIC.
Im aware that its not that simple with TRIAC based light dimmer to simply control an inductive load.
I also tried this circuit (fan dimmer) which i found from the internet and interfaced the TRIAC with the PIC at its gate section.....
**broken link removed**
This circuit worked , however the POT over heated too quickly. I tried replacing it with a 5W 1kOhm resistor...but that too over heated.....i then tried a simple short circuit by a wire. Now this solved the over heating problem at this end....however now the TRIAC is over heating.....
Please Please help on how to minimize the excessive heating in the circuit?
Shrooms