Resources Contact Us Home
Electronic circuit

Image Number 5 for United States Patent #7671680.

An electronic circuit includes an input terminal, a transimpedance amplifier connected to the input terminal and including an amplifier and a feedback resistor, a first time constant circuit smoothing an output from the transimpedance amplifier, a gain control circuit arranged between the input terminal and ground potential and controlling current flowing between the input terminal and the ground potential on the basis of the output from the first time constant circuit, and a safeguard circuit controlling the gain control circuit and blocking the current flowing between the input terminal and the ground potential, when a signal to be input into the input terminal is stopped.

  Recently Added Patents
Oxide material, electrophotographic photoreceptor, process cartridge, and image forming device
Power supply system for a data storage system and a method of controlling a power supply
Methods and compositions related to glucocorticoid receptor antagonists and breast cancer
Disc shaped high density recording medium
Switching device and electronic apparatus using the same
Hybrid fiber constructions to mitigate creep in composites
Display for displaying three-dimensional images and method for displaying three-dimensional images
  Randomly Featured Patents
Arrangement for testing telephone subscriber line circuit via B-ISDN channel linking central office test system and metallic channel unit installed in digital loop carrier remote terminal
Magnetostrictive magnetically controlled sprag locking motor
Magnetic connector
Compositions for vaginal treatment
Vehicular lamp having appearance of depth
Floating crank shaft
Acid leaching of copper ore heap with fluoroaliphatic surfactant
Foldable film winding crank for camera
Decoder of variable length codes
Data transmission apparatus having cascaded data processing modules for daisy chain data transfer