I have been troubleshooting a clicking noise on my Tesla coil driver that causes the system to stop working if my AC line voltage got to high (80V when system is designed for 120V). Suddenly one of the main rectification capacitors (1000uF 250V) puffed smoke violently... I'm guessing the clicking sound was the capacitor breaking down and arcing internally... I have multiple small ceramic capacitors also on the circuit to bypass any RF from the main supply line.
- 1000uF 250V mfg p/n:381LR102M250K052
- 2.2uF 630V are generic film caps
- 4.7nF (Schematic 0.1uF) 1kV mfg p/n:S472M39Z5UN63J5R
I'm trying to figure out if it is my design that caused the failure, or just an unlucky capacitor being ran near its rating.
Does anyone see any issue, such as an RF path through the bulk capacitance (the 1000uF caps)?