Hello, first topic seeking for help. Sorry about my english...
I build a three phase oven heater using triac and an arduino.
During low load operation it works very good (60W bulb lamp), but when I change the load (8.5kW heater) is has a strange firing problem.
I attached the circuit in LTSpice for more detailed explanation, but when I trigger Vbc phase I get conduction on Vab phase as well.
The first problem is that LTSpice simulation does not converge, trying to figure it.
Second that I have no clue what may be...
Any help are welcome.
https://drive.google.com/file/d/0BwVP4AzXV_MqWkdXc2UybTJ3MG8/view?usp=sharing
I build a three phase oven heater using triac and an arduino.
During low load operation it works very good (60W bulb lamp), but when I change the load (8.5kW heater) is has a strange firing problem.
I attached the circuit in LTSpice for more detailed explanation, but when I trigger Vbc phase I get conduction on Vab phase as well.
The first problem is that LTSpice simulation does not converge, trying to figure it.
Second that I have no clue what may be...
Any help are welcome.
https://drive.google.com/file/d/0BwVP4AzXV_MqWkdXc2UybTJ3MG8/view?usp=sharing