Position: Index > Lamp Circuit >

Fluorescent lamp electronic ballast

2016-08-14 18:02  
Declaration:We aim to transmit more information by carrying articles . We will delete it soon, if we are involved in the problems of article content ,copyright or other problems.


Fluorescent lamp electronic ballast
The fluorescent lamp electronic ballast circuit is composed of the rectifier filter circuit, high-frequency oscillator circuit and output circuit, and it is shown in Figure 3-202. Rectifier filter circuitis composed of the rectifier diodes VDl-VD4 and filter capacitors Cl, C2. High-frequency oscillator consists of the transistors VI, V2, resistors Rl-R7, capacitors C3, C4, C6, diodes VD5-VD8 and inductors L3-L5 (L3-L5 is wound in the same magnetic ring to form a high-frequency transformer). Output circuit consists of the chokes Ll, L2 (stabilizing current) and capacitors C7-ClO. Rl-R7 use 1/4W carbon film resistors or metal film resistors.