Morgan’s Chopper ( Current Commutated Chopper ) 8532

Categories: Power Electronics

SALIENT FEATURES :

ADTRON’S  Morgan’s Chopper is a self – contained stand unit useful in the study and demonstration of the principle and working of a Morgan’s Chopper. It consists of a D.C. Source UJT Triggering Circuit of variable frequency, Class “B” Commutation and D.C. Output the D.C. Output drives a D. C. Motor. The unit is housed in an elegant metal cabinet, with a well spread intelligently designed circuit layout on the front panel. Multicoloured Test Points are provided at various stages in the circuit to observe the waveforms and voltages. It is strongly supported by a comprehensive Instruction Manual complete with theory and operating details.

TECHNICAL SPECIFICATIONS

*     Principle                       :           Conversion of a Fixed DC to Variable DC Voltage.

*     Type of Chopper        :           Morgan’s Chopper.

*     D. C. Source                 :           24V DC (Unregulated).

*     Trigger Circuit            :           UJT Trigger Circuit with variable trigger frequency to trigger the SCR.

*     Commutation             :            Class “B” Type.

*     Output Voltage          :            5V to 20V approximately (variable).

*     Controls                        :            1. Mains ON / OFF.

                                                              2. Frequency Control.

                                                              3. Load Control.

*     Test Points                   :            Multicoloured Test Points are provided at various stages in the circuit to observe the waveforms and voltages.

*     Indicator                      :            Mains ON / OFF.

Experiments :

1.      Study of SCR Trigger Circuit for a Morgan’s Chopper.

2.      Observe the output voltage with Motor Load.

3.      Observe the effect of Load Control on Output.

*     Standard Accessories      :      Detailed Instruction Manual.