Week -2

Make a Simulink model of Doorbell using solenoid block

Aim:-

To make a simulink model of Doorbell using solenoid

blocks are used in simulink:-

Pulse genarator

Switch

Battery

Solenoid

Ideal translation motion sensor

Mechanical translation reference

Electrical reference

Scope

Display

Condition:-

Switch is closed for 2 seconds and then relesed.

Simulation Model:-

Explanations:-

We connect the all connections above the simulink model and now we going to the Frist block of the simulation and very importnt also That is Pulse generator is given as the input with following Specifitions.

The above we mension the conditions the bell is off in 2 seconds and after 2 seconds it will automatically on position.

So,we go the set the parameters of the pulse generator the main we give the vallus is Pulsw width is 20% and Time period is 10 seconds and Phase dealy is 2. then all will set then click on the run buttion and see the result of the output.

Input signal:-

Output signal:-

Conclusion:-

We check that the all paramerets and check the results of the doorbell using solenoid and i can obseved the combination electricl and mechanical blocks works.

Thermistor to sense the temperature of a heater & turn on or turn off the fan

Aim:- To create a simulinkmodel of Thermistor to sense the temperature of a heater & turn on or turn off the fan.

Blocks are used in midel:-

Repeating sequence stair

Switch

Battery

Slover configuraction

Simulink ps converter

Controlled Temperature source

Thermistor

Resistor

Scope

Display

Condition:-

Fan condition: ON if the temperature above 25 °C, OFF otherwise.

Temperature source: 20 °C from 0 to 10 seconds, 27 °C from 10 to 30 seconds, 23 °C from 30 to 50 seconds.

Simulink model:-

Explanations:-

Frist We take the repeating sequence stair the we will given the Input vallues of vector of output values and sample time.

Now we go the condition of the Temperature source id defind in side the above window.The sample time we will take 10 seconds and the simulation time will was taken time period is 50 seconds.

Then the repeatind sequence will connect to the controll temperature souces that Temperature sourse will connect through the Thermistor and now we connect the slover configuraction and go to the tharmal referance.

Next we go to the signal Battery and resistor is connect the Thermister circuit.The Voltage sensor was given accross the resistor to measure the voltage changes during the different Temperatureinputs.

Next the signal will passing through the Switch the voltage will connect the switch and Now we take the two constant blocks because the switch is( On/OFF) position and final we connect the scope and display.

Now we can check the final ouput of the waveform and check the all parameters of the fan.

Input signal:-

Output signal:-

Conclusion:-

we got the final ouput of " Thermistor to sense the temperature of a heater & turn on or turn off the fan".