1. HIGH QUALITY LOW- LOSS LOW-COST DC MOTOR TORQUE CONTROLLER JOSE PEDRO GARCERAN SANCHEZ BYEONG CHAN PARK NUMBER 48

2. OBJECTIVE BUILD AND DESIGN A VERY EFFICIENT CONVERTER (90% EFFICIENCY) WITH THE LOWEST COST POSSIBLE. IMPLEMENT SAFETY FEATURES IN THE CONTROLLER SO IT KEEPS THE USER SAFE AND COMFORTABLE WHILE USING.

3. ESTIMATING LOSSES

4. SIMULATION

5. Result for Programable Micro Controler 1. Smooth acceleration is achieved. 2. With current sensing resistor, stops at current limit(50.5 A) 3. If the current reaches at 49A, It starts counting for 5seconds, then stops sending signal to the gate of MOSFET.

6. PICTURE

7. BLOCK DIAGRAM

8. CONCLUSION 1.EVEN THE SIMPLEST CIRCUITS CAN HAVE COMPLEXITIES WHEN PRACTICAL IMPLEMENTATION. 2.CHECK EVERY COMPONENT BEFORE USING IT IN A CIRCUIT. 3.THEORY AND PRACTICE DONT HAVE TO MATCH 100%. 4.EXACT MATHEMATICAL VALUES ARE NOT NEEDED MOST OF THE TIMES, JUST GOOD ESTIMATIONS.