SILICON P-N JUNCTIONS AS AUTOMATIC GAIN CONTROL (AGC) ELEMENTS FOR VIDEO PULSES,
Abstract
The silicon P-N junction is studied from a theoretical standpoint, then compared with actual characteristics. The dynamic resistance characteristic is determined, and typical circuits are presented that illustrate how this variable resistance can be used to control gain (or attenuation) electrically. It is shown that there are four basic characteristics of gain versus AGC voltage: linear, logarithmic, (logarithmic) to the minus 1 power, hyperbolic. These characteristics depend on how the diodes are driven (voltage or current source) and where the diodes dynamic resistance appears in the circuit's gain equation. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Feb 01, 1965
- Accession Number
- AD0614280
Entities
People
- Richard S. Hughes
Organizations
- Naval Air Weapons Station China Lake