Description

In this example to rotate DC motor clockwise/counter clockwise continuously the motor interface card. For that in Spartan3 FPGA lines (P77, P78) are configured for (Coil-A to Coil-B). FPGA Lines (P79) to enable the dc motor. User could verify the result by Stepper/DC motor Card connected to the FPGASP3 KIT at connector J6.

library IEE;
use IEE.STD_LOGIC_1164.ALL;
use IEE.STD_LOGIC_ARITH.ALL;
use IEE.STD_LOGIC_UNSIGNED.ALL;

entity first is

port ( clk : in std_logic;

rst : in std_logic;
....etc

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To get full information or details of low cost automatic energy efficient emergency lamp using PWM please have a look on the pages

http://seminarsprojects.net/Thread-low-cost-automatic-energy-efficient-emergency-lamp-using-pulse-width-modulation

if you again feel trouble on low cost automatic energy efficient emergency lamp using PWM please reply in that page and ask specific fields in low cost automatic energy efficient emergency lamp using PWM ....etc

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I need this ppt. So please allow to download this..for that i shall be greatful to you..

sanjaya kumar sahu ....etc

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to get information about the topic PWM based Inverter fed Induction MotorIntroduction to Pulse Width Modulation full report refer the page link bellow
http://seminarsprojects.net/Thread-pwm-based-inverter-fed-induction-motorintroduction-to-pulse-width-modulation-pwm-in ....etc

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Abstract
A general pulsewidth modulation (PWM) method for control of four-switch three-phase inverters is presented. The proposed vector PWM offers a simple method to select three or four vectors that effectively synthesize the desired output voltage, even in presence of voltage oscillations across the two dc-link capacitors. The method utilizes the so called space vector modulation, and includes its scalar version. Different vector combinations are compared. The effect ofWye and delta motor winding connections over the pulse width modu ....etc

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Hi..
I wanna generate pwm on lpc 2148 but NOT on standard assigned pins for pwm..As my requirements are more than 6 pwm's i want to generate pwm on GPIO port by using timers..
Please help..Thanx in advance ....etc

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pwm based on dc motor control using at89s52 microcontroller

A pulse width modulator (PWM) is a device that may be used as an efficient DC motor speed controller or light dimmer. This project is a versatile device that can control DC devices which draw up to a few amps of current. The circuit may be used in either 12 or 24 Volt systems with only a few minor wiring changes. This device has been used to control the speed of the DC motor and to control brightness of an automotive tail lamp. A PWM circuit works by making a square wave with a variab ....etc

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Abstract:
The number of industry applications in which induction motors are fed by static frequency inverters is growing fast and, although much has already been done within this field, there is still a lot to be studied/understood regarding such applications. The advance of variable speed drives systems engineering increasingly leads to the need of specific technical guidance provision by electrical machines and drives manufacturers, In this paper we have studied and developed a simulink model with PWM inverter and find out the variou ....etc

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Where can I buy it? Can I conect it to Raspberry Pi with some other circuits? ....etc

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220v Light Bulb Dimming Circuit

INTRODUCTION

A light bulb is a device that illuminates a place. It makes light by heating a metal filament wire to a high temperature until it glows. This is done by supplying electrical current to the feed-through terminals or wires embedded in the glass.

Pulse-width modulation (PWM) is a commonly used technique for controlling power to inertial electrical devices, made practical by modern electronic power switches. It is a way of digitally encoding analog signal levels. The volt ....etc

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