Resources Contact Us Home
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
Electronic device and printed circuit board
Method and system for parallelizing data copy in a distributed file system
Erasing a non-volatile memory (NVM) system having error correction code (ECC)
Terminal device and image printing method
Parallel power inverter motor drive system
Decoration holder
System, method, and computer program product for identifying unwanted data communicated via a session initiation protocol
  Randomly Featured Patents
Detachable dispenser for distributing scent or lure
Enqueue operations for multi-buffer packets
Ionizing radiation sensor used in a system of radiographic imaging
High-frequency surgical apparatus
Electrically operated automatic transmission controller assembly
Compounds and compositions to control abnormal cell growth
Distance measuring device for camera
Asphalt-aggregate recycle process and apparatus
Antenna mount