1. You are given the following components in a Light Sensor Circuit:(picture) Your goal is to design a light sensor circuit which turns on the LED when it is in a dark room, and turn off the LED when the room is lit. The LDR has a resistance value which changes according to the presence of light in the room, as shown in the first table & graph above. The LED turns on when it is given the voltage and current rating in the second table & graph above. 2. Select other electrical and/or electronic components that you would want to incorporate into your light sensor circuit. Explain why you made your choice of components. 3. Once you have confirmed your electronic components selection, proceed to design and analyse the circuit using the circuit theorems you have learnt. Draw a technically complete circuit diagram to illustrate the working conditions of the light sensor circuit. Your circuit diagram must be furnished with component labels, values of impedances, voltage sources and voltage drops. 4. Document your design process in your Project Report. Your documentation should include the following: a. table of electrical and/or electronic components and their parameter values b. circuit design schematics with full label of parameter values c. discussion and explanation of circuit design using circuit theorems.
Instructions and Operation
Nowadays, electrical engineers are required to evolve their practices by incorporating embedded processes, microcontrollers, digital signal processors, and so on. These processors are beneficial in many ways and have changed the perspective of electronic design.
Subroutine Instruction
Subroutine instruction is defined as the instructions used in the programming language in a sequence form saved in memory. They are used to doing a specific task. Subroutine instruction is called a unit that instructs to perform some needed task. There are many programming languages in which subroutine instructions are used but have a different identity or name, such as method, function, subprogram, routine, etc. Subroutine or sub-program is designed or coded as they can be called multiple times while executing the program.
Classification of Buses
A bus inside a microprocessor is a collection of wirelines that contain related information. A group of wires required for communication among the microprocessor and peripherals is known as a system bus. A bus is an electrical or digital passage across which bits are transferred between a variety of computer elements. It mainly links all the internal parts to the CPU (Central Processing Unit) and main memory. The width or size of any bus is crucial since it affects the amount of data that is transferred at a certain time period. Buses always transmit data parallelly, in a 32-bit bus, the information is supplied over 32 wirelines simultaneously and each bus comprises a clock speed measurable in MHz. The various types of buses inside a microprocessor are address bus, data bus, and control bus.
Execution of Instruction
A sequence of instructions makes up a program stored in a computer's memory unit. The CPU executes these instructions by going through a cycle for each instruction. The instruction cycle in a simple computer includes the steps listed below:
1. You are given the following components in a Light Sensor Circuit:(picture)
Your goal is to design a light sensor circuit which turns on the LED when it is in a dark
room, and turn off the LED when the room is lit. The LDR has a resistance value which
changes according to the presence of light in the room, as shown in the first table & graph
above. The LED turns on when it is given the voltage and current rating in the second table
& graph above.
2. Select other electrical and/or electronic components that you would want to incorporate
into your light sensor circuit. Explain why you made your choice of components.
3. Once you have confirmed your electronic components selection, proceed to design and
analyse the circuit using the circuit theorems you have learnt. Draw a technically
complete circuit diagram to illustrate the working conditions of the light sensor circuit.
Your circuit diagram must be furnished with component labels, values of impedances,
voltage sources and voltage drops.
4. Document your design process in your Project Report. Your documentation should include
the following:
a. table of electrical and/or electronic components and their parameter values
b. circuit design schematics with full label of parameter values
c. discussion and explanation of circuit design using circuit theorems.
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