ELCT 201 ON/OFF Analog Controller

1. Electrical Engineering – ELCT 201 ELCT 201ON/OFF Analog Controller

2. Subsystem 1 Subsystem 2 Subsystem 3 Window Maker Window Comparator H Bridge (L298n) and DC Motor U.L. Forward Reverse L.L. SP =Vin 2 Feedback Vin 1 Dead Band (Window height) Mechanical Linkage ON/OFF Analog Control System (Using op amps and a H Bridge)

3. Vin 1 10K Window height Trim pot 10K Window Maker (Subsystem 1) 100K 100K Vout 1 = Vin 2 – Vin 1 LM324 100K L.L. (Lower Limit) 100K Set Point =Vin 2 Window position 10 Turn pot Vout 2 = Vin 2 LM324 U.L. (Upper Limit)

4. U.L. LM324 FEEDBACK 10 turn 10K L.L. LM324 Window Comparator (Subsystem 2) Forward Feedback Signal Reverse

5. 10K FEEDBACK Forward Reverse 10 turn Reverse Forward H Bridge (L298n) and DC Motor (Subsystem 3) Mechanical Linkage

6. L298N Half Package Vs 14 C D 10 13 12 Vss 4 3 4 ½ L298N Ven 11 15 8

7. L298N Half Package Vs 100nF 100nF 14 C D 10 13 12 Vss 4 3 4 ½ L298N Ven 11 15 8

8. Control Lines

10. L298n

11. L298n pinout

12. L298n