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Power Devices And Circuits:
 
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TOPICS
OBJECTIVES - LEARNER WILL BE ABLE TO:

INTRODUCTION:



  • Distinguish electricity & electronics; power distribution & power control.
  • List electronic power modules in various commercial & industrial electronic systems. (Motor controls, power supply in P.C. and cellular ratio batteries).
  • Analyze the need for today's smaller and lighter power supplies

FREQUENCY RESPONSE:


  • Analyze the steady-state dc circuit model for a circuit containing capacitance and/or inductance.
  • Analyze the flat-band ac circuit model for a circuit containing capacitance and/or inductance.
  • Define the concepts of amplitude response, phase response, and frequency response.

MULTISTAGE AMPLIFIERS:

  • Determine voltage gain, input resistance, and output resistance for any of the basic configurations.
  • Develop models for and analyze multistage amplifier configurations.

POWER AMPLIFIERS:

  • Define class A, B and C amps. and discuss their relative efficiencies.
  • Analyze a class B push-pull amp. for input power, output power, internal power dissipation, and efficiency.
  • State and apply the equation relating temperature difference, power dissipation, and thermal resistance of a transistor.

POWER SUPPLIES:

  • Linear and switch-mode.

  • Draw the schematic diagram for and analyze the operation of a full-wave rectifier with a center-tapped transformer.
  • Explain the operation of an IC linear regulator circuit and IC switch-mode regulator circuit.
  • Explain the principle of current-limiting, over-voltage protection (OVP), under-voltage & power-loss sensing, battery back-up, and remote sensing.
  • Explain the principle of the uninterruptible power supply (UPS).
  • Evaluate commercially available stand-alone power supplies.

 

DIFFERENTIAL AMPLIFIERS:

  • Explain the general operation of a discrete-component differential amplifier.
  • Explain the operation of and analyze a current mirror.

 

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