and a motor in a circuit with two jumpers. 4. The theory was applied. The jumpers were connected to the alternate voltage supply. 5. The direction of DC motor was tested and determined. 6. All switches were in closed position at initial condition. 7. Only switch 1 and 4 was closed at the first condition as in figure 2(a). The direction of DC motor and the RPM of DC motor was recorded 8. Switch 1 was opened and switch 2 was closed as in figure 2(b) after the first reading was recorded. The motor was
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ELECTRIC MOTORS I. Introduction Electric motors are considered to be important mechanical devices. They usually convert the electrical energy coming from the mechanical device into its kinetic energy to make it work (Petingco and Resurreccion‚ 2011). In this exercise‚ the students were tasked to use an example of an electric motor‚ identify its parts‚ and make it work. All electrical motors are equipped with stator and rotor. Stator is known as the stationary part of an electric motor while
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EPHE 380 – Motor Control Final Exam Ian Haig V00711512 Scenario: Walking down a 45 degree slope with a surfboard under my left arm and a large mountaineering backpack on my back. I was walking down the trail to Sombrio Beach which is about a 1.5k hike down a steep trail to the ocean. I had a surfboard under my right arm‚ an axe in my left hand‚ and a large 40 litre hiking backpack fully loaded with supplies on my back. About half way down there is a left turn in the trail which has a declining
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SWOT sample Havas Sports Entertainment UK Strengths | -domestic market-reduced labor costs-barriers of market entry-high profitability and revenue-skilled workforce-monetary assistance provided | | Weaknesses | -competitive market---small business units-unknown-costs-high loan rates are possible | | Opportunities | -venture capital-new acquisitions | | Threats | -increase in labor costs-global economy-price changes-financial capacity-tax changes-increasing rates of
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SWOT Whereas the STEEP model looks at the industry as a whole‚ SWOT concentrates on your particular business. The acronym stands for Strengths‚ Weaknesses‚ Opportunities and Threats. Generally speaking‚ the first two are internal factors‚ and the last two external ones; those on the right of the template are positive factors‚ those on the left‚ negative. As above‚ the following diagram suggests some of the issues that may be significant‚ but as this is a personal analysis‚ only you will be
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READ MOREBrushless DC Motors are an important class of highly efficient electric motors. They are most frequently used in electric vehicles because of their high efficiency and high power density. They are also present in the small DC fans used in power supplies and CPU coolers. In order to discuss the Brushless DC Motor it is important to first have a basic understanding of the more common Brushed DC Motor which is present in many household items. The brushed DC motor consists of a rotor (the
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2.1 Motors use the effect of forces on current-carrying conductors in magnetic fields 2.1.1 The motor effect The motor effect is where a force acts on a current-carrying conductor in a magnetic field. The right hand palm rule is used to find certain properties: fingers point to magnetic field‚ thumb points in DC direction and palm points to direction of the force. 2.1.2 Factors affecting the force acting on the current-carrying conductor Forces are experienced by the electrons in the conductor
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A multiple birth is when the mother delivers two or more offspring. Since 1980 the multiple offspring birthrate has increased by over 75%. in general multiple births have more complications then a normal one offspring birth. Many new things come into play when the mother is carrying multiple children. Not only is it harder on the mothers body‚ but the babies are also sharing a space and nutrients. There are multiple short- term complications of multiple births like: pre-eclampsia‚ and diabetes. Both
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UC3638 Advanced PWM Motor Controller FEATURES • • • • • • • • Single or Dual Supply Operation Accurate High Speed Oscillator Differential X5 Current Sense Amplifier Bidirectional Pulse-by-Pulse Current Limiting Programmable Oscillator Amplitude and PWM Deadband Dual 500mA Totem Pole Output Drivers Dual 60V‚ 50mA Open Collector Drivers Undervoltage Lockout DESCRIPTION The UC1638 family of integrated circuits are advanced pulse width modulators intended for a variety of PWM motor drive and amplifier
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STRATEGY GENERAL ELECTRIC STREAM 1 – COURSE WORK GROUP -‐ 11 AHMED AHMED ETTEFAGH TAHSIN MASHAT MOAZ QING SHAN ZHENG DANYI UNIVERSITÁ DELLA SVIZZERA ITALIANA‚ LUGANO – CORPORATE STRATEGY 2012/2013 Corporate strategy Table of Content 1. Introduction to the General Electric Company
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