MR16

 2001 limit requirements ; conduction disturbance and radiated emission compliance with national mandatory standard GB17743-2007 limits.

   MR16

Figure 8 input current harmonic content

Figure 9 Mains ( full-bridge rectifier ) and input current

4 Conclusions T8 Tube

Cost-effective, high-efficiency LED technology advances , LED lighting also to the rapid development ; appropriate lighting system needs to take into account the energy efficiency , power factor, harmonic currents and other factors , which requires their choice appropriate LED driver power supply solutions. To this end , we propose using the critical mode (boundary mode) of AC / DC single-stage flyback power topology , through theoretical calculations and empirical analysis to determine the reasonable transformation parameters , the design of a high power factor , low harmonic currents efficient LED drive power .

LED Flexi

 The driver also has a main power switch MOS transistor to achieve low zero current turn-on voltage , the rectifier diode to achieve zero current shutdown and avoid its negative reverse recovery characteristics , can significantly improve their work efficiency, reduce losses and reduce the system electromagnetic interference. Verified by experiments and mass demonstrate that the design is reasonable , stable performance , good reliability , improve energy efficiency ,