CCFL TUBE TESTING CIRCUIT DIAGRAM This circuit is an inverter designed to power a CCFL (Cold Cathode Fluorescent Lamp), often used for testing such lamps. It is built around the versatile NE555 timer IC. Here is a breakdown of the key components and the circuit's function: ⚡️ Circuit Function and Design The primary function of this circuit is to convert the low-voltage DC (6V) from the battery into the high-voltage AC required to ignite and run a CCFL. * Oscillator (IC1 - NE555): The NE555 timer is configured as an astable multivibrator (oscillator). * The timing components, R2 (1k\Omega), R3 (2.7k\Omega), and C2 (0.1\mu F), determine the frequency and duty cycle of the square wave output at Pin 3. This square wave is essential for driving the transformer. * Switching/Driver Stage (T1 - MOSFET): The output from the NE555 (Pin 3) drives the gate of the MOSFET (T1 - IRF512/IRF830). * The MOSFET acts as a switch, rapidly turning the curren...