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Electrical Technology, Vol2: Machines and Measurements, 1/e by S. P. Bali

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46

Controlled Rectifiers

OBJECTIVES

In this chapter you will learn about:

  • The difference between a diode and a thyristor
  • The operating states of a thyristor
  • How to trigger a thyristor
  • Basic thyristor circuits
  • Basic motor control
  • Controlled rectifiers
equation
46.1  INTRODUCTION

Motor control adds to the value of all types of motors. In some industrial applications where motors drive the production equipment, motor control is critical.

Figure 46.1 shows a basic type of primitive control where a thyratron (gas-filled triode) is used. The control signal, by varying the time distribution of the tube’s conduction, controls the current flow through the ...

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