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
Scaleable status tracking of multiple assist hardware threads
Package for product
Extreme ultraviolet light source device and method for generating extreme ultraviolet light
Paging of a user equipment (UE) within a wireless communications system
Washing machine
Flow cytometer method and apparatus
Software management system for network data processing systems
  Randomly Featured Patents
Spin size and thermosetting aid for pitch fibers
Automatic carton magazine loading system
Apparatus for the remote measurement of physical parameters
Detachable developer supply container having means for selectively prohibiting detachment
System and method for acquiring a received signal in a spread spectrum device
Apparatus and method for measuring an AC current which saturates the core of a current transformer
Transgenic mouse model and methods for treatment of neuro muscular disease by interfering with androgen-androgen receptor interaction in skeletal muscles
Shift register circuit
Portable vehicle ramp
Head chip, liquid jet head, and liquid jet device