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CONTROL OF CURRENT SOURCE CONVERTER FED REVERSING INDUCTION MOTOR DRIVE BY REMOTE CONTROL. ABSTRACT • The microcontroller receives the Infrared Signal from the TV remote, the code of which is identified by the IR receiver depending on which it switches ON/OFF the appropriate relay or TRIAC for a split phase induction motor to achieve desired direction. • The Range of the system is up to 10 meters. The project can also be used to switch ON/OFF electrical devices of maximum load current of 5A by minor alteration. BLOCK DIAGRAM HARD WARE EQUIPMENTS • POWER SUPPLY BLOCK • MICROCONTROLLER (AT89S52/AT89C51) • LED • RELAY • ULN2003 • TSOP1738 RECEIVER • 1N4007 • RESISTOR S & CAPACITORS EMBEDDED SYSTEMS Definition for :- EMBEDDED SYSTEMS A combination of hardware and software which together form a component of a larger machine. An example of an embedded system is a microprocessor that controls an automobile engine. An embedded system is designed to run on its own without human intervention, and may be required to respond to events in real time. EMBEDDED SYSTEMS MICRO CONTROLLER Compatible with MCS®-51 Products 8K Bytes of In-System Programmable (ISP) Flash Memory 4.0V to 5.5V Operating Range Crystal Frequency 11.0592MHZ Three-level Program Memory Lock 256 x 8-bit Internal RAM 32 Programmable I/O Lines Three 16-bit Timer/Counters Eight Interrupt Sources Full Duplex UART Serial Channel Watchdog Timer AT89S52 PIN DIAGRAM OF AT89S52 LED LEDs are semiconductor devices are made out of silicon When current passes through the LED, it emits photons as a byproduct. Normal light bulbs produce light by heating a metal filament until its white hot LEDs present many advantages over traditional light sources including lower energy consumption, longer lifetime, improved robustness, smaller size and faster switching TSOP 1738 RECEIVER PIN DIAGRAM It’s a standard IR remote control receiver supporting all major transmission codes Pin1 – Connected to Ground Pin2 – Connected to Vcc Pin3 – Output Pin In Between 1st Pin and 2nd Pin we have to connect one Capacitor TSOP 1738 Receives 14—bit of data TSOP 1738 FEATURES • Photo detector and preamplifier in one package • Internal filter for PCM frequency • TTL and CMOS compatibility • Output active low • Low power consumption • High immunity against ambient light • Continuous data transmission possible (up to 2400 bps) • Suitable burst length .10 cycles/burst RELAY IT IS A ELECTRO MAGNETIC SWITCH USED TO CONTROL THE ELECTRICAL DEVICES COPPER CORE MAGNETIC FLUX PLAYS MAIN ROLE HERE Relay Driver ULN2003 ULN is Relay driver application The ULN2003 is a monolithic high voltage and high current Darlington transistor arrays. It consists of seven NPN Darlington pairs that features high-voltage outputs with common-cathode clamp diode for switching inductive loads. The collector-current rating of a single Darlington pair is 500mA. The Darlington pairs may be paralleled for higher current capability. Contd … • The ULN functions as an inverter. • If the logic at input 1B is high then the output at its corresponding pin 1C will be low. SOFTWARE REQUIREMENTS PROGRAMMING LANGUAGES Embedded C , ALP (Assembly Language) COMPILERS: Keil 2.0/3.0uv DUMPING SOFT WARE: Using Micro controller flash Software we are dumping our HEX Code into Micro Controller KEIL COMPILER WINDOW BIBILOGRAPHY The 8051 Microcontroller and Embedded systems” by Muhammad Ali Mazidi and Janice Gillispie Mazidi , Pearson Education. ATMEL 89S52 Data Sheets. www.atmel.com www.beyondlogic.org www.wikipedia.org www.howstuffworks.com www.alldatasheets.com THANK ‘Q’