(a) A 24V series de motor is used to operate an electric golf buggy shown in Figure Q4(a). The motor is controlled by a power electronic de drives so that the buggy can be driven in both directions (forward and reverse) with controllable speed and able to perform regenerative braking in both directions. The de power supply of the motor is coming from the 24V battery where a dedicated power electronic converter is used to control the power flow between the battery and the de motor. During regenerative braking, the battery will be charged by the de motor. Here, you are required to design the electrical drive system for the buggy consists of the power electronics circuit and the motor. The followings are the contents that must be presented. the sketch of the supply, the chosen power electronics converter circuit and the motor discussion on how the switches in the converter is controlled to realize all the four modes of operation the relation between power flow, voltage and current as well as the developed torque, back emf and speed during all the four modes of operation
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:
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