Resources Contact Us Home
Browse by Category: Main > Electrical & Energy
Class Information
Number: 330/190
Name: Amplifiers > Input networks > Transformer coupled > With transformer structure
Description: Subject matter involving the structure of the transformer in the input coupling circuit.

Patents under this class:

Patent Number Title Of Patent Date Issued
8044540 Systems and methods for a SPDT switch or SPMT switch with transformer Oct. 25, 2011
7982544 Method and system for amplifying a signal using a transformer matched transistor Jul. 19, 2011
7898340 Method and system for amplifying a signal using a transformer matched transistor Mar. 1, 2011
7348845 System and method for employing variable magnetic flux bias in an amplifier Mar. 25, 2008
6424227 Monolithic balanced RF power amplifier Jul. 23, 2002
4968949 Ohmically isolating input circuit Nov. 6, 1990
4779058 Ohmically isolated input circuit Oct. 18, 1988
4497004 Picture reproducing apparatus in a helical scanning video tape recorder Jan. 29, 1985
4490844 Low frequency transformer Dec. 25, 1984

  Recently Added Patents
Method of manufacturing a plurality of electronic assemblies
Cationic polymers for antimicrobial applications and delivery of bioactive materials
Method of fabricating crystal unit, crystal unit fabrication mask, and crystal unit package
Fuel cell system, and electric vehicle equipped with the fuel cell system
Washing machine
Collaborative image capture
Sensor chip, sensor cartridge, and analysis apparatus
  Randomly Featured Patents
Polyethersulfone compositions with high heat and good impact resistance
Magnetic filtration method for minimizing radioactive waste during abrasive waterjet cutting
Integrated circuit device having at least one of a plurality of bond pads with a selectable plurality of input-output functionalities
Butt joints
DNA for eukaryotic expression of CymR
Routing table for forwarding Internet Protocol (IP) packets through a communications network
Route calculation method for a vehicle navigation system
Dihydropyridine soft drugs, and related compositions and methods
Dual acting slit control mechanism
Method and apparatus for a filament channel pass gate ferroelectric capacitor memory cell