Resources Contact Us Home
Browse by Category: Main > Electrical & Energy
Class Information
Number: 330/142
Name: Amplifiers > With control of power supply or bias voltage > With control of input electrode or gain control electrode bias > Cathode resistor supplies bias (e.g., self-biasing circuits)
Description: Subject matter involving a vacuum tube amplifying device whose input electrode bias voltage and/or bias control voltage for the same amplifying device is supplied from a resistive circuit network in the cathode to ground path of the vacuum tube amplifying device whereby the plate current flowing through such resistor, which is usually by-passed for signal current frequencies, develops a D.C. bias voltage at the cathode.

Patents under this class:

Patent Number Title Of Patent Date Issued
7511573 Input/output signals preserver circuit of amplification circuits Mar. 31, 2009

  Recently Added Patents
Redundant parallel operation of motor vehicle electrical system generators
Hybrid coatings and associated methods of application
Manufacturing method power semiconductor device
Transferring a document
Catalyst and process of hydrocarbon feedstock reformation to hydrogen and carbon monoxide
  Randomly Featured Patents
Hair styling iron
Image-adaptive quantization for JPEG compression
Method and apparatus for programming anti-fuse devices
Disposable surgical gown with a bib forming a hand support
Bed for snorers
Dispenser for counter means
Imaging apparatus including control device for controlling white balance
Stationary photovoltaic array module design for solar electric power generation systems
Preventing crease formation in donor web in dye transfer printer that can cause line artifact on print
Air compressor