Sunday, February 8, 2009

Solid State Servo Boost

Block diagram of Static PWM boost servo stabilizer

Battery Powered CFL Inverter Flyback

Circuit of popular Battery powered CFL inverter using flyback out put stage.
It is the lowest component count and coast but will fail at no load (tube disconnected).

Thursday, February 5, 2009

DC AC CFL Inverter Push Pull

Parallel resonant current fed push pull inverter for battery powered lighting applications. It uses capacitor C3 for preheating and electrostatic shield for tube starting.

SMR


DC AC CFL Inverter with preheating

Parallel resonant current fed push pull inverter with preheated staring with out the help of electrostatic shield for battery powered lighting applications.No load protection is also  provided.

Wednesday, January 28, 2009

AC voltage sensing circuit


This circuit is used to sense ac line voltage with out using transformer and gives very low leackage current while circuit ground can be connected any potential.test