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DUAL-DIODE LIMITER
Figure 4-16C.Clamping waveforms

Neets Module 09-Introduction to Wave-Generators and Wave-Shaping Circuits
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4-16 Figure 4-15A.—Dual-diode limiter. Figure 4-15B.—Dual-diode limiter. CLAMPERS Certain applications in electronics require that the upper or lower extremity of a wave be fixed at a specific value. In such applications, a CLAMPING (or CLAMPER) circuit is used. A clamping circuit clamps or restrains either the upper or lower extremity of a waveform to a fixed dc potential. This circuit is also known as a DIRECT-CURRENT RESTORER or a BASE-LINE STABILIZER. Such circuits are used in test equipment, radar systems, electronic countermeasure systems, and sonar systems. Depending upon the equipment, you could find negative or positive clampers with or without bias. Figure 4-16, views (A) through (E), illustrates some examples of waveforms created by clampers. However, before we discuss clampers, we will review some relevant points about series RC circuits.






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