Experimental Training Board has been designed specifically to study the Silicon Controlled Rectifier phase firing and D.C. control characteristics. It is a training aid for advance studies in control circuits.Practical experience on this board carries great educative value for Science and Engineering Students.
 

Object:

1.  To study the D.C. gate control characteristics (firing characteristics) of a SCR.
2.  To study and plot the anode current characteristics of a SCR.
3.  To measure the holding current of a SCR.
4.  To study the plot the phase firing characteristics of a SCR.

Features:

• The Board consists of the following built-in parts:
• The unit is operative on 230V ±10% at 50Hz A.C. Mains.
• Adequate no. of patch cords 4mm length 50cm.
• Good Quality, reliable terminal/sockets are provided at appropriate places on panel for connections / observation of waveforms.
• Strongly supported by detailed Operating Instructions, giving details of Object, Theory, Design procedures, Report Suggestions and Book References.

•  0 to 50V DC at 50mA, continuously variable Power Supply for Anode.
•  0 to 3V DC at 50mA, continuously variable Power Supply for Gate.
•  0-10VAC at 50Hz, variable Power Supply for Anode.
•  Digital Voltmeter DC 3½ Digit having Dual range of 20V/200V.
•  Digital Current meter DC 3½ Digit having range of 0-200mA.
•  Silicon Controlled Rectifier.
•  Fixed limiting resistances.
•  Adequate no. of other electronic components.
•  Mains ON/OFF switch, Fuse and Jewel light.

Other Apparatus Required:

• Vacuum Tube Voltmeter
• Cathode Ray Oscilloscope 20MHz
• The Board consists of the following built-in parts: