So i am currently working on an H-Bridge project and created the circuit. This i

Question

So i am currently working on an H-Bridge project and created the circuit. This is my circuit design that succesfully works. I now have to create a observation Powerpoint slide . Im guessing i have to to write about how i can improve my circuit. My question is , what would you write in that slide and how would you improve it ?

$1 VCC $2 VCC gV Key A Key A Q7 2N3904 2 R1 R2 a5 2N 3904 2.2k0 2.2ko Current and voltage taken here on first sweep Current and voltage taken hene on second sweep M1 6 R38 Q6 2N3904 08 2N3904 3 R4 2.2kQ 2.2k

Explanation / Answer

The following contents can be added in the slide:

1: What is an H bridge?

An H bridge is an electronic circuit that enables a voltage to be applied across a load in either direction. These circuits are often used in applications which needs DC motors to run in forward or backward direction.

Robotics is one such field where H bridge is extensively used.

2. Working:

If the desired direction of motor movement is forward, Q5 and Q8 must be closed to power the motor. As it can be seen that left terminal of the motor will be connected to Vcc and right terminal is connected to ground. Thus the motor moves in forward direction.

Similarly when the motor is to be driven in reverse direction, Q7 and Q6 must be closed to power the motor. Now the right terminal will be connected to Vcc and left will be connected to ground. Thus the motor moves in reverse direction.

3: Truth table to show the flow of current through the motor

4: Advantages and Disadvantages

Advantages:

1. Fast switiching speed can be achieved.

2. Simple construction and economical

Disadvantages:

1. Limited current and volatge handling capability

2. can easily be damaged due to electrical transients

Elaborate on each point in slide when presenting and this will be pretty much sufficient.

Q5 Q6 Q7 Q8 Result 0 0 0 0 Motor shorted to +V 0 0 0 1 SHORTCIRCUIT 0 0 1 0 Motor floating 0 0 1 1 Motor spinning forwards 0 1 0 0 SHORTCIRCUIT 0 1 0 1 SHORTCIRCUIT 0 1 1 0 SHORTCIRCUIT 0 1 1 1 SHORTCIRCUIT 1 0 0 0 Motor floating 1 0 0 1 SHORTCIRCUIT 1 0 1 0 Motor floating 1 0 1 1 Motor floating 1 1 0 0 Motor spinning backwards 1 1 0 1 SHORTCIRCUIT 1 1 1 0 Motor floating 1 1 1 1 Motor shorted to ground

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