Speed Control Of Dc Motor Using Thyristor Ppt
You can replace the dc motor with any other dc load and control the any dc circuit.
Speed control of dc motor using thyristor ppt. 220 v 50hz ac supply2. Connect the gate terminal of the thyristor to the resistor and push button as shown in the circuit diagram. Thyristor can used for control high dc currents and loads. For this we are using at89c51 ic and by using this we are setting the speed of motor.
Supply needed for speed control of an industrial d c. The control of dc voltage is achieved by firing the thyristors at an adjustable angle with respect to the applied voltage. Place the thyristor on the breadboard and connect the cathode terminal to gnd. Until the 1960s the only really satisfactory way of obtaining the variable voltage d c.
The controlled thyristor rectifier provides a low impedance adjustable d c voltage for the motor armature thereby providing speed control. Thyristor speed control of a shunt motor the speed of a shunt d c motor upto 5 kw may be regulated over a wide range with the help of the full wave rectifier using only one main thyristor or scr t as shown in fig. Connect one terminal of the dc motor to the anode terminal of thyristor and the other terminal to the switch. Motor was to generate it with a d c.
To test the circuit connect the battery and close the switch s1. 5v dc supply 5. The firing angle a of t is adjusted by r 1 thereby controlling the motor speed.