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Power Supplies Using Electron Tubes
A.
Bhatia
Overview
Power supplies are vital
in the world of electronics. There are several different power supply
designs out there for converting AC to DC using electron tubes or
semiconductors. Although most of the power supply circuits using electron
tubes are outdated, they still show the same basic concepts that our modern
solid-state devices have replaced. Many power supplies today still trace back to
the basic circuits.
The power circuits are
typically made up of four basic sections: 1) Transformer, 2) Rectifier, 3)
Filter and 4) Regulator. The transformer regulates the voltage level and couples
this voltage to the rectifier section. The rectifier section converts the AC
signal to a pulsating DC voltage. The filter section converts the pulsating
voltage to filtered DC voltage and finally the regulator maintains the output of
the power supply at a constant level. Depending upon the design of the
equipment, the output of the regulator will maintain a constant DC voltage
within certain limits.
This 4-hr course provides a basic understanding of
several different power supply designs. The course is based entirely on
Naval Education and Training Materials (NAVEDTRA 14178), Electricity and
Electronic Series; Module-6 and covers Chapter 3 titled "Power Supplies".
The student must take a multiple-choice quiz
consisting of twenty-five (25) questions at the end of this course to obtain PDH
credits.
Specific Knowledge or Skill Attained
At the conclusion of this course, the reader will
be able to:
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Identify the various
sections of a power supply and state their function
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Describe the purpose of
the various types of rectifier circuits used in power supplies
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Describe the purpose of
the various types of filter circuits used in power supplies
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Describe the operation
of the various voltage and current regulators in a power supply
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Trace the flow of AC and
DC in a power supply on a schematic diagram
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Identify faulty
components through visual checks
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Identify problems within
specific areas of a power supply
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Apply safety precautions
when working with electronic power supplies
Course
Click on the following PDF attachment and review the document
prior to taking
a quiz for credit.
Power Supplies (461 KB)
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credit. Click on the link below.
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