Generally, a Bidirectional rotation of an induction motor with a remote control is a device that used to control a single phase ac motor rotation in the directions of clockwise and anti-clockwise. In straightway, we cannot turn the single-phase ac motor in both directions as well as we can only control this motor with a single phase one way switch. In other words, if we want to manage the motor in both directions then we must use any kind of motor drive, which could be so expensive, but it would also function with single phase one way switch. On concentrating these problems, here we have implemented a device that is named as a bidirectional rotation of an induction motor with a remote control device.
Bidirectional Rotation of an Induction Motor with a Remote Control Device
The hardware and software requirements of bidirectional rotation of an induction motor with a remote control device include 8051 series Microcontroller, Crystal, IR Sensor, Relay Driver IC, Relays, Transformer, Diodes, Voltage Regulator, Capacitors, LED, Resistors and TV Remote.
Programming Languages: Embedded C, ALP (Assembly Language)
Compilers: Keil 2.0/3.0uv
Dumping SoftWare: Using Microcontroller flash Software we are dumping our HEX Code into Micro Controller
AT89S52 Micro Controller
- Compatible with MCS®-51 Products
- ISP (In-System Programmable) Flash Memory-8K Bytes
- Operating Range from 4.0V to 5.5V
- Crystal Frequency-11.0592MHZ
- 3-level Program Memory Lock
- Internal RAM-256 x 8-bit
- Programmable I/O Lines-32
- 16-bit Timer/Counters-3
- Interrupt Sources-8
- Full Duplex UART Serial Channel
- Watchdog Timer
The term LED stands for light emitting diode; these are semiconductor devices are made out of Si (silicon). When current flows through this diode, it produces photons as a byproduct. Normal light bulbs emit light by warming a metal filament until its white hot. At present, LEDs have several advantages over usual light sources with lower energy consumption, improved robustness, longer lifetime, tiny 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
- We have to connect one capacitor in between Pin-1 and Pin-2
- TSOP 1738 Receives 14-bit of data
Features of TSOP 1738
- Photodetector and preamplifier in one package
- Internal filter for PCM frequency
- Compatibility of TTL and CMOS
- 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
- It is an electromagnetic switch
- Used to control the electrical devices
- Copper core magnetic flux plays the major 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 feature 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.
- 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.
Bidirectional Rotation of an Induction Motor Working
The proposed system is intended to drive an induction motor for the necessary application in forward and reverse directions using wireless technology. For instance, an exhaust fan can be employed in both the directions to obtain fresh air in and throw hot air out. This can be used in case of conventional exhaust a fan that turns in one direction only.
This project demonstrates a technology to turn a squirrel cage induction motor in mutually clockwise and counterclockwise direction. It also has the condition to control the motor’s direction using a TV remote. When a TV remote key is pressed, it transmits an infrared signal in RC5 code which is received by an infrared receiver called TSOP-1738. The microcontroller gets the IR signal from the remote, the code of which is recognized by the receiver to function a set of relays.
The relays activate the appropriate relay to control a split phase induction motor to get preferred direction by exchanging leading supply phase from the major winding to the secondary winding. The TSOP output is fed to an 8051 family microcontroller which is interfaced to a relay driver IC. After that, the relay switching is done by steady mode for a split phase induction motor to rotate in forward and reverse directions.
This proposed system demonstrates a technology to rotate a squirrel cage induction motor in both clockwise and counterclockwise direction. This is a sensor based embedded system project helpful for EEE students.