Week -2

1. DOOR BELL

Simulink Model :

Explanation :

Pulse generator is used to create a pulse after regular interval of time.

Switch block is used to controlled by external physical signalIf external signal is greater than threshold value then switch is closed and otherwise open.

At the negative terminal of switch electric reference is connected.

Ideal translation motion sensor is connected with solenoid to observe moment of plunger.

Scope is connected to give output.

PS-simulink converter is connected to convert physical signal into simulink signal.

Door bell simulink model link :

https://drive.google.com/file/d/1hLF0awHu1ceJm8xO-bjLAgolmfXmNrI1/view?usp=sharing

2. THERMISTOR

Model Explanation :

Signal Buider is used to create a signals.Following are the inputs given to it,

At point 1, Time = 0 sec and Temp = 293 K

At point 2, Time = 10 sec and Temp = 293 K

At point 3, Time = 10 sec and Temp = 300 K

At point 4, Time = 30sec and Temp = 300K

At point 5, Time = 30 sec and Temp = 296K

At point 6, Time = 50 sec and Temp = 296K.

Resistor is connected to battery to control the amount os current.

Voltage sensor is used to voltage between two points into physical signal.

Electric reference block is used.

Switch is connected to control the action of fan according to threshold condition.If the temp is above threshold value then fan is on and if temp is below it fan remains off for that condition.