Fluorescent energy-saving electronic ballast circuit

Posted on Dec 11, 2010

Electronic ballasts have a wide operating voltage range, fast start working no noise, no flicker, save energy and so on. It has been more and more people to accept. The circuit

Fluorescent energy-saving electronic ballast circuit
Click here to download the full size of the above Circuit.

shown in FIG is currently available on popular electronic ballast typical circuit. Figure 10-3, VD1 ~ VD4, c1, G form a bridge rectifier and filter circuit, complete 300V AC-to-DC conversion zzov. Horse, start-up wind resistance, to provide turn-VT2 bias voltage, thereby stimulating VT1, VTZ formed high-frequency self-oscillation. B for the buck produce self-inductance choke, C3, VD5, VD6, G composition soft-start circuitry, so that the establishment of the circuit operating point to the delay, so that the lamp filament preheating plus long, in order to facilitate the rapid start lamp, extending its life.

Leave Comment

characters left:

New Circuits



Popular Circuits

Geiger counter
Night Safety Light For Autos
Enlarging Light Meter Circuit
Circuit Detector and Disconnecting Over Voltage Schematic
digital scoreboard circuit
remote shift light
Quiz Circuit
Home-Built Nitrogen (N2) Laser
Internal Resistance Tester For Batteries
Simple Schematic for VCA mixer
Low-pass filter circuit diagram subwoofer
Multimeter AC DC converter circuit diagram automatically
One of debug circuitry DC motor armature resistance in series starting