RESEARCH DIRECTED TOWARD ANALYSIS AND DESIGN OF TRANSISTOR CIRCUITS

Abstract

The use of switches, operated to produce a duration modulated pulse train, as a linear amplifier are discussed. An analysis of the signal and distortion is presented. It is shown, for a given degree of distortion, that modulating both leading and trailing edges of the pulses equally allows a lower pulse rate relative to the highest signal frequency than if only one edge is modulated. The efficiency of a single switch (SPST) in converting power supplied into ac signal power has a maximum of 50% (for lossless switch and sinusoidal signal). Circuits using 2 ideal lossless switches have efficiencies of 100% independent of signal amplitude (degree of modulation). Some experiments with transistor switches are described. (Author)

Document Details

Document Type
Technical Report
Publication Date
May 01, 1961
Accession Number
AD0261899

Entities

People

  • A.w. Carlson

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Amplifiers
  • Amplitude
  • Distortion
  • Efficiency
  • Electronic Amplifier
  • Electronic Equipment
  • Electronics
  • Frequency
  • Heart Rate
  • Modulation
  • Semiconductor Devices
  • Solid State Electronics
  • Trailing Edges
  • Transistors

Fields of Study

  • Engineering
  • Physics

Readers

  • Electrical Engineering
  • Microwave Engineering.
  • Radio communications and signal processing.