I am trying to control an OSRAM XENARC 66140 35W HID (High-intensity discharge) Lamp with a circuit which contains Texas Instruments UCC2305. I have obtained 4 original lamps from OSRAM and tried on my controller circuit, 3 of 4 are worked correctly and gave light, however one lamp did not emit any light.
Then I have checked this not working lamp with a test setup implemented for 66140 and it worked. So the lamp is not actually damaged.
I have considered that there are little differences that can not be easily observed between working and not working lamps and my controller circuit is not be able to tolerate this differences. I can not say that the electronic design of my circuit is totally wrong because 3 of 4 66140 lamps are working troubleless. But I did not understand why one of that lamp's behavior -which I tried and saw on test setup and working.
If you share your comments it may be solve my problem.