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
Audit planning
Battery pouch sheet edge insulation
Magnetic storage apparatus
Method and apparatus for controllable communication
OFDM control signaling in the presence of timing asynchronization in a peer-to-peer network
Process for preventing polymerization of cracked volatile products during pyrolysis and gasification
  Randomly Featured Patents
Rotational atherectomy device with fluid inflatable support elements and two torque transmitting coils
Pellet gate for pneumatic discharge hopper car
Gel impact modified polycarbonate resin compositions
Centrifuge particle size analyzer
Reaction apparatus which introduces one reacting substance within a convergent-divergent nozzle
Cargo rack assembly for wakeboard boats
Screw cap
Ice-cream machine
Output buffer circuit of semiconductor memory device