The
project is designed to drive an induction motor for the required application in
forward and reverse directions using wireless technology. For example, an
exhaust fan can be used in both the directions to get fresh air in and throw
hot air out. This can be used in case of conventional exhaust a fan that
rotates in one direction only.
This
proposed system demonstrates a technology to rotate a squril cage induction
motor in both clockwise and counter clockwise direction. It also has the
provision to control the direction of the motor using a TV remote. When a TV
remote button is pressed, it sends an IR signal in RC5 code which is received
by an IR receiver called TSOP-1738. The microcontroller receives the infrared signal from
the IR remote, the code of which is identified by the receiver to operate a set
of relays. The relays switch ON/OFF the appropriate relay to power a split
phase induction motor to achieve desired direction by interchanging leading
supply phase from the main winding to the auxiliary winding. Output from
the TSOP is fed to a microcontroller of8051 family which is interfaced to a relay driver IC. Thereafter, the relay
switching is done by-stable mode for a
split-phase induction motor to rotate in forward and reverse directions.
Download for block diagram and more details
Link 1: Download the abstract
Link 1: Download the abstract
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