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WIRELESS DC MOTOR SPEED AND DIRECTION CONTROL USING IR COMMUNICATION
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 ....etc

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INTRODUCTION
This assignment is basically designed to demonstrate the use of controllers in DC motor which consists of two stage ,electronic stage that is controlled by 8 bit microcontroller and second is the mechanical stage consisting of gear box which controls the motion of DC motor to provide a impulse to electronic stage which generates a resultant signal to control the parameters of controller.
FEEDBACK-CONTROL THEORY
Figure 1 shows th ....etc

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3. BLOCK DIAGRAM OF 12V DC BOOST REGULATOR
The figure shows the simple block diagram of the 12V dc boost regulator. Each block can be separately assembled and checked. The functioning of each block is discussed below.
Figure 3.1 Block Diagram of 12V DC Boost Regulator
3.1 DC SUPPLY
It is the external dc input applied to the circuit. The boost regulator circuit corrects variations in the supply voltage. Additional current is drawn by the boost circuit to get the required output voltage.
3.2 LOW VOLTAGE ....etc

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Introduction

An inverter is an electrical device that converts direct current (DC) to alternating current (AC); the converted AC can be at any required voltage and frequency with the use of appropriate transformers, switching, and control circuits.
Static inverters have no moving parts and are used in a wide range of applications, from small switching power supplies in computers, to large electric utility high-voltage direct current applications that transport bulk power. Inverters are co ....etc

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SPEED CONTROL OF DC SHUNT MOTOR USING MICRO CONTROL BASE


INTRODUCTION:-
DC motor speed controllers are very useful for controlling the motion of robotic and industrial automation systems. The controller presented here uses the PWM technique. The PMW wave for speed control is generated using Atmel AT89C51 microcontroller. To control the speed of the DC motor, you need a variable power supply. When the DC motor is switched on, i ....etc

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