https://www.ijert.org/development-of-a-control-unit-for-electric-bicycle https://www.ijert.org/research/development-of-a-control-unit-for-electric-bicycle-IJERTV9IS040639.pdf Bicycle being the greenest mode of transportation comes with a drawback that cannot be ignored in this fast paced world. Transportation is now greeted as time saving process. So, this is where electric bicycle mainly came into picture. People need a green, health preserving, fast mode of transportation and E-bicycle gave it all. More than just being these things electric bicycle are also able to generate back electric power by use of pedal power and free rotation of motor through regenerative mode. There are many uses of an Electric bicycle, like it is now also being used in Heart rehabilitation centers for patients having heart,lung problem. Our aim is to design a control unit for an electric bicycle using Field Programmable Gate Array (FPGA), which has regenerative power control circuit. Details of the motor and the electronic converter are given. The regenerative power control for electric bicycle method is a simple and a low-cost solution. A Battery Management System (BMS) is applied in order to monitor and to protect the battery from the abnormal conditions. Control unit is simulated in MATLAB/SIMULINK and in proteus with the required parameters and results are provided for reference.