Motor Basics-I

Motor Basics-I

Motors vs Engines:

             

              • Motors convert electrical energy to mechanical energy.

  • Engines convert chemical energy to mechanical energy.

Motors:

            • Advantages

1.       Low Initial Cost.

2.       Simple & Efficient Operation

3.       Compact Size – cubic inches/Hp

4.       Long Life – 30,000 to 50,000 hours

5.       Low Noise

6.       No Exhaust Emissions

7.       Withstand high temporary overloads

8.       Automatic/Remote Start & Control

• Disadvantages

1.       Portability

2.       Speed Control

3.       No Demand Charge

Magnetic Induction:

1.       Simple Electromagnet 2.       Like Poles Repel 3.       Opposite Poles Attract

Operating Principle:

               

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8051 Can't Be Ignored

Despite it’s relatively old age, the 8051 is one of the most popular microcontrollers in use today. Many derivative microcontrollers have since been developed that are based on compatible with the 8051. A microcontroller   can be defined as computer-on-a-chip built for dealing with specific tasks or a single task, such as displaying or receiving information through LEDs or remote controlled devices. The most commonly used set of microcontrollers belong to 8051 Family. 8051 introduced by Intel in late 1970s. 8051 Microcontrollers are preferred choice for a most of the community of hobbyists and professionals. Through 8051, the world became witness to the most revolutionary set of microcontrollers. Thus, the ability to program an 8051 is an important skill for anyone who plans to develop products that will take advantage of microcontrollers.

PIC is a family of modified Harvard architecture microcontrollers made by Microchip Technology, derived from the PIC1650 originally developed by General Instrument's Microelectronics Division. The name PIC initially referred to “Peripheral Interface Controller”. PICs are popular with both industrial developers and hobbyists similarly to 8051, due to their low cost, wide availability, more dependent on user, extensive collection of application notes, availability of free development tools, and serial programming and also it can be re-programming with flash memory capability. They are also commonly used in educational programming as they often come with the easy to use 'pic logicator' software.

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