Showing 1–16 of 20 results
AC DIMMER TO CONTROL AC VOLTAGE, SPEED OF INDUCTION MOTOR OR HEATER COIL
A voltage controller, also called an AC voltage controller or AC regulator is an electronic module based on either thyristors, TRIACs, SCRs or IGBTs, which converts a fixed voltage, fixed frequency alternating current (AC) electrical input supply to obtain variable voltage in output delivered to a resistive load.
Induction motor speed control is done by varying the frequency of the applied voltage. Raising or lowering the voltage can have some speed control effects but these will be small, difficult to control, load-dependent, possibly cause the motor to overheat and, are not generally recommended.
ACPWM power control using 555IC and IGBT
This project attempts a new speed control technique for the single-phase a.c. induction motor. It presents a design of a low-cost; high-efficiency drive capable of supplying a single-phase a.c. induction motor with a PWM modulated sinusoidal voltage. The circuit operation is controlled by 555 astable multivibrator. The device is aimed at substituting the commonly used triac phase angle control drives. The circuit is capable of supplying a single-phase a.c. induction motor (or general a.c. inductive/resistive load) with varying a.c. voltage.
Automatic Star Delta Starter using Relays and Adjustable Electronic Timer for Induction Motor
The proposed project aims at providing low voltage to induction motors through star to delta conversion. Star Delta is basically used to lower the current rate applied to motor at start and after that full load current is applied.
DC MOTOR SPEED CONTROL USING 555 TIMER IC
This project is designed to control the speed of a DC motor using PWM control using 555 IC. The speed of the DC motor is directly proportional to the voltage applied across its terminals. Hence, if the voltage across the motor terminal is varied, then the speed can also be varied.
Four Quadrant DC Motor Controls without Microcontroller
The main intention of this project is to control the speed of a DC motor in alternative directions using speed control unit and to operate the motor in four quadrants: ie, clockwise, counter clock-wise, forward brake and reverse brake
RFID BASED ADVANCED SMART AND SECURE RATION SYSTEM
The purpose of this Smart ration distribution system is to avoid the wastage of huge amount of money as in conventional ration distribution system. RFID tag used as an e-ration card instead of conventional ration card. Theft of ration prevented. Only authorized person has access to ration.
SOFT START OF INDUCTION MOTOR USING ACPWM
This project attempts a soft start control technique for the single-phase a.c. induction motor. The circuit operation is controlled by an 8051 family microcontroller. The drive uses a PWM controlled MOSFET and the load in series with a bridge rectifier. The device attempted here takes advantage of both the low price of the phase angle control and the low harmonic content and high efficiency that we can get with standard converter topology.
SOFT START OF SINGLE PHASE INDUCTION MOTOR₹0.00
The main intention of this project is to provide protection for a single-phase pump motor by applying initial voltage gradually from low to high for obtaining soft start. The pump motor draws more current than its rated capacity during their starting condition which may lead to the damage of the windings of the motor. In order to avoid this problem, applied voltage is gradually increased from low to high so that the soft start of the pump motor is performed.