The LED of the main light source in the future is widely known because of excellent properties than the conventional light source. The main applications of the LED are vehicle lighting, residential lighting and decorative lighting, street lighting, and LCD back light, traffic lights, etc. Demand of the LED is rapidly increasing because of LED life is more longer than other source in the appropriate environmental requirements and 100,000 hours and LED is mercury-free, recyclable eco-friendly aspects such as semiconductor utilized in addition to greater luminosity than efficiency 150lm / W, the LED applications by providing a wide range of colors this is because the advantage of making more flexible. Despite these advantages LED is electrically, temperature and has a very delicate disadvantages photons change. For example, some of the voltage change across the LED can cause a large current change by the V-I characteristic of the diode LED. As a result, the LED current variation may cause a change in light output. Therefore, proper driving methods and control methods should be adopted. Thus, the life and performance of the LED driver are important considerations. Therefore, the selection of an appropriate topology and control method among various topologies and control methods is an important choice of the designer. Currently, electrolytic capacitors have been considered as the critical component. They are affecting the LED driver’s lifetime. If electrolytic capacitor are reduced or eliminated, it can be improved. Solutions to reduce electrolytic capacitor are to distort the line input current by injecting the third harmonic signals, to use pulsating current with relatively large ripple to drive LEDs, and so on. In this paper, the output square wave current controller is used for lifetime improvement, the totem-pole bridgeless AC/DC rectifier is used for high efficiency, flyback converter is used for electrical insulation. In order to confirm the performance of the totem-pole AC/DC rectifier and output square wave current controller, the simulation is progressed by PSIM 9.0.