Question 1 - 70 pts: Transistor - H-bridge circuit The following circuit is called an H-bridge circuit and is used to dr

[answerhappygod]

Question 1 70 Pts Transistor H Bridge Circuit The Following Circuit Is Called An H Bridge Circuit And Is Used To Dr 1 (201.01 KiB) Viewed 45 times

Question 1 - 70 pts: Transistor - H-bridge circuit The following circuit is called an H-bridge circuit and is used to drive a DC motor in both direction, namely forward and reverse direction. 1. Forward direction: the current should flow from A to B in the DC motor. 2. Reverse direction: the current should flow from B to A in the DC motor. 1. 10 points - Which transistors should be open or close to rotate the motor in the forward direction? Draw the direction of the current on the figure. 2. 10 points – Which transistors should be open or close to rotate the motor in the reverse direction? Draw the direction of the current on the figure. 3. 15 points an L298 motor driver is a H-bridge used to control the speed and direction of DC motor. It requires a battery voltage V5 = 24V and a PWM signal from a microcontroller. Assuming that the motor rotates at 1000rpm at 24V, what is the duty cycle of the PWM to rotate the motor at 650rpm? 4. 15 points - With a duty cycle of 75% and a PWM frequency of 1kHz, draw the corresponding PWM signal. Indicate the duration ton and toff: 5. 20 points - Define the concept of no-load speed and starting torque for a DC motor and plot the torque-velocity relationship. Vs Q1 02 Motor B TOAT 0166 GA Q3 04 HD