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Current Commutated Chopper


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Current Commutated Chopper

Current Commutated Chopper

Features:

  • Easy to operate
  • Compact design
  • Longer serving life

Technical Specifications:

  • Principle: Conversion of a Fixed DC to Variable DC Voltage.
  • Type of Chopper: Current Commutated 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.
  • Frequency Control.
  • 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.
  • Observe the output voltage with Motor Load.
  • Observe the effect of Load Control on Output.

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