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
Undercabinet plug-in mount
Coding circuitry for difference-based data transformation
Dynamically updating privacy settings in a social network
Shoe bag
Polypeptides and immunizing compositions containing gram positive polypeptides and methods of use
Low cost mesh network capability
Trash receptacle
  Randomly Featured Patents
Mounting a pass-through on a plastic fuel tank
Hand tool package
Method of forming conduit receiving passageways in a refrigerator
Rocker arm adapter for altering cam profile of exhaust valve
Induction of tissue, bone or cartilage formation using connective tissue growth factor
Automated assembly apparatus
Display board illuminating device for passive displays
Wire stock suitable for reinforcement
Extruded solid dielectric high voltage cable resistant to electro-chemical trees
Contraceptive methods and compositions