History Of Brushless Direct Current ( Bldc )

Throughout history welding has been known as, and referred to as nay things. It has been relayed to and called such things as, blacksmith or iron workers because of its way of using and manipulating metal. Welding can be dated back to over 2000 years during ancient times like the Bronze Age, but it was first documented as metal shaping in Egypt in 4000 B.C. Some civilizations started with less magnetic materials like copper, then progressed to more iron based materials like bronze, gold, iron and silver. In 3000 B.C. using pressure welding The Sumerians beat and formed swords for battle. Later into the 19th century Sir Humphrey Davy was the inventor of the electric arc, that was powered by battery and using two electrodes. Between 1808 - 1827

The equivalent electrical circuit of a dc motor is shown in figure 5.2. It can be represented by a voltage source (Va) across the coil of the armature. The electrical equivalent of the armature coil can be described by an inductance (La) in series with a resistance (Ra) in series with an induced voltage (Vc) which

Starting and pull-in torque’s vary with the square of the applied voltage, and the starting current is proportional to the applied voltage, exactly as on induction motors. [7]

They are electromagnetic device but opposite to each others . Electrical motor convert electrical energy into mechanical energy and generator convert mechanical energy in electrical

The history of welding has traveled from all around the world and has improved so much.Welding has believe to have started from 4000 B.C. and is still going on right now.

The basis of modern day electrical systems were all derived over a quarrel involving the light bulb, the electric chair, and a 28-year old Croatian immigrant.This dispute involved three of the biggest and most prominent names in the history of electrical engineering: Thomas Edison, Nikola Tesla, and George Westinghouse, who were all scientists and innovators who lived during the late 1800s. Edison and Tesla would get into a quite large argument over the best and most efficient kind of electrical currents. It would be Edison’s direct currents against Tesla’s alternating ones. This disagreement would go on to shape the course of electricity across the country. It would later be known as the War of Currents. The War of Currents had a great impact

"In 1996, electric cars began to appear on roads all over California. They were quiet and fast, produced no exhaust and ran without gasoline. Ten years later, these futuristic cars were almost completely gone." The first electric cars were created in in the twentieth century. The electric cars were killed off around 100 years ago because gas and petroleum powered cars with an internal combustion engine were cheaper. Problems from gas and petroleum started to arise and caused smog, Co2 emissions, high child asthma rates, and global warming. In 1987 General Motors built the EV Sunraycer which won the World Solar Challenge, a solar electric car race in Australia. General Motor's CEO, Roger Smith challenged the same design team in 1990 to build

Brushless motors are a bit similar to normal DC motors in the way that coils and magnets are used to drive the shaft. Though the brushless motors do not have a brush on the shaft which takes care of switching the power direction in the coils, and this is why they are called brushless. Instead the brushless motors have three coils on the inner (center) of the motor, which is fixed to the mounting. On the outer side it contains a number of magnets mounted to a cylinder that is attached to the rotating shaft. So the coils are fixed which means wires can go directly to them and therefor there is no need for a brush. The reason why QuadCopters use brushless motors instead of normal DC motors is the much higher speeds and less power usage for the same speed. The brushless motors are more efficient as there is no power lost as there is in the brush-transition on the DC motors. Usually rated with a KV rating (revolutions per volt). This is not equivalent to torque, but lower KV motors are usually used for larger

The electric motors work by electricity and magnets working together. Once the electricity gets going, the magnets take over. The magnets keep the motor going because the magnets used in motors have both positive and negative magnets on both sides. Surrounding the magnetic ends, are one positive and one negative magnet. This means that at any

Welding is a worldwide trade that can be found everywhere whether it be Golden Gate Bridge or the Empire State Building. It is the process of joining two pieces of metal together by melting them. This major discovery dates back to ancient times and is still advancing. Welding was used in the middle ages, became increasingly popular through the eighteen and nineteen hundreds, and still continues developing.

On November 16th, 1901, an electric car called the “Torpedo Racer”, which wasn’t much more than a platform with bike wheels on it, set the land speed record for electric cars. This feat was achieved in Coney Island, New York by a man named Andrew Riker. he wasable to drive a mile in about 1 minute and 3 seconds. (That’s about 57 mph. in case you were wondering.) That was fast for the time, but the speed record for electric cars today is around 245 mph, so his record could probably be broken by a bike that has a few modifications added to it. However, he did hold on to this record for the next 10 years, and that alone says a lot about how slow everything was back then. I like cars, but i don’t know as much about them as others do. This article

The alternating current induces a shifting magnetic field, which creates different temporary poles at timed intervals. Due to the positioning of the semiconducting magnets and creation of the different electromagnetic forces, the like pole tend to push while the unlike poles attract, therefore, causing motion in the direction dictated by the alternating current (Funk and Getsla, 2006).

In a normal motor set-up, there are different mechanical and electronic components, for example, the admission complex, flash attachments, Mass wind stream/Volume wind stream, and so forth. Present day motors utilize the utilization of an ECM to give the best harmony in the middle of execution and emanations. Through the OBD correspondences convention, the electronically controlled parts of the motor can be altered in the process known as 'mapping'. Changing so as to map can either be performed the product inside of the ECU (chip tuning by means of firmware adjustment), or by giving false information through module equipment (piggybacking). Mechanical segments can likewise be supplanted, for example, turbochargers or

“The first 4 Cylinder engine was introduced in 1902.”- ( History of the Deutz ). “The Locomobile company hired a young engineer.”- ( History of the Deutz ). ‘“He was a race car driver by the name of Andrew Riker.”- ( History of the Deutz ). That must've been a long time to make an engine back in 1900’s. It must’ve taken lots of research to create it. “The Locomobile company wanted Andrew Riker to create a car that would run on gasoline.”- ( History of the Deutz ) “The Locomobile wanted the car to be good enough to have the Locomobile name.”- ( History of the Deutz ) It must’ve taken a lot of time to make an engine work with gasoline. To create all the pistons, crankshafts, spark plugs, injectors and all the moving parts. It had to of taken

Economically, petroleum fuel prices have escalated in the past, which make the use of the electrical controlled vehicle a great alternative to manage the cost issues. Therefore, this research proposal focuses on Electrical Vehicle technology.