Design of Motor Speed Sampling, Amplification, Filtering and Display - Essay Example

On the other hand, the display circuit performs digital functions by showing the alpha numeric digits. The distinctive design of the electronic circuits for the control of motor speed control and the subsequent display is the physical approach used in the creation of physical circuits that also check the variations in behavior of various electronic components with close reference to their working. Therefore, the required system is an effective remote controlled DC motor with a speed display on seven segments with the D type flip flop.

This type of circuit can be categorically divided into two parts; the PWM generator and the IR transmitter. Additionally, there are a number of ways that the remote control can be used. However, we shall deploy the use common approach of the NE555 with the combination of various components in both modules as illustrated below: Particularly, 555 is widely used for the frequency oscillation and can be obtained through the different frequency range according to the need by changing its subsequent duty cycle.

The first part of the circuit is generated by the PWM and this is the input of the second model. Conversely, the second model is responsible for the transmitting of wireless signals at a 38 kHz range. Noteworthy, duty cycles can be changed by the trimming of RV2 variable resistance while the D3 is the IR diodes transmit signals (Krishnan, 2010, p.7). On the other hand, the second circuit represents the response from the first circuit and it receives signals using the IR sensor. These signals are later converted to signals that result in the subsequent motion of the motor.

Generally, this represents the remote control switch which is tasked with the conversion of low frequencies into significantly lower voltages between 2v to 5v. This concept is illustrated below: Functionally, Q2 is an IR sensor that receives the transmitter signals and switches the 2N2222A transistor. Therefore, the voltage