Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Power supply dependent optical receiver and amplifier and photocoupler using the same










Image Number 2 for United States Patent #8129671.

In an optical receiver and amplifier and an optical coupler, a technique for stabilize operations at turning on/off of a power supply by a simple configuration is desired. An optical receiver and amplifier includes: a photodiode generates a photocurrent in response to a light input; an output section outputs output voltage being a low level or a high level in response to a magnitude of the photocurrent by using a power supply voltage supplied from a power supply; and an output control circuit controls an input voltage of the output section such that the output voltage is set to the low level when the power supply is turned on or off during a period where the power supply voltage is lower than a predetermined value. The output voltage can be set to the low level so that an additional circuit for preventing malfunction is not needed.








 
 
  Recently Added Patents
Bandana
Fluorine-free fused ring heteroaromatic photoacid generators and resist compositions containing the same
Resist composition and method for producing resist pattern
Multilevel directory assistance apparatus and method
Interface circuit
Cover panel for frame based door lock
Formation of a masking layer on a dielectric region to facilitate formation of a capping layer on electrically conductive regions separated by the dielectric region
  Randomly Featured Patents
Delivery box assembly for merchandising machine
Fire retardant concentrates and methods
Motor-generator system providing prolonged uninterrupted power supply to a load
Office perforator
Apparatus and method for aligning webs
Optical grid analyzer system for automatically determining strain in deformed sheet metal
Method of forming vias through two-sided substrate
Automatically tightened seatbelt
Semiconductor devices and semiconductor device manufacturing methods
Nano-based device and method