TC 9-62
7-132. Magnetic amplifiers provide a way of accurately controlling large amounts of
power. They are used in servo systems, temperature or pressure indicators, and power
supplies.
7-133. This chapter has presented only the basic operating theory of saturable-core
reactors and magnetic amplifiers. For your convenience, simple schematic diagrams have
been used to illustrate this material. When magnetic amplifiers and saturable-core reactors
are used in actual equipment, the schematics may be more complex than those you have
seen here. You may also find coils used in addition to those presented in this chapter. The
TM for the equipment in question should contain the information you need to supplement
what you have read in this chapter.
Figure 7-38. Magnetic Amplifier Input and Output Signals
SUMMARY
7-134. Now that we have completed this chapter, the following is a short review of the
more important points. Answer the check-on-learning questions, found after the summary,
to determine how much you have learned from this chapter.
DIFFERENCE AMPLIFIER - any amplifier with an output signal dependent
upon the difference between the input signals. Combine the CE and CB
configurations in a single transistor to make a two-input, single-output
difference amplifier.
7-48
TC 9-62
23 June 2005
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