Resources Contact Us Home
Automatic gain control device

Image Number 3 for United States Patent #6816013.

An automatic gain control device without being influenced by leakage current of a capacitor. The automatic gain control device includes a first control loop, a second control loop, and a multiplexer. The first control loop receives an input voltage and generates a first AGC voltage accordingly. The second control loop receives the first AGC voltage, registers the first AGC voltage as digital data, and outputs a second AGC voltage by a DAC. The multiplexer chooses the first AGC voltage or the second AGC voltage as an AGC voltage according to a hold signal. Because the second control loop registers the first AGC voltage in a digital format and output the second AGC voltage from the DAC, the AGC voltage can be held constant for a long time without being influenced by leakage current.

  Recently Added Patents
Image browsing device, computer control method and information recording medium
Triple-trim reference voltage generator
Floor relief for dot improvement
Method and computed tomography device and data storage medium for performing a dynamic CT examination on a patient
Targeting agents for enhancing radiation therapy
Silicon carbide substrate, epitaxial wafer and manufacturing method of silicon carbide substrate
  Randomly Featured Patents
Exposure method and apparatus
Optical coupler
Method for planarizing an oxide layer
Question-response processing based on misapplication of primitives
Hot water circulating system
Closed chest cannulation method and device for atrial-major artery bypass
Lithographic projection apparatus with collector including concave and convex mirrors
Back-flow preventing bag valve for bag-in-box container
Continuously leaching an ore column
Micro piezoresistive pressure sensor and manufacturing method thereof