Resources Contact Us Home
Input/output buffer for protecting a circuit from signals received from external devices

Image Number 12 for United States Patent #7268592.

An input/output buffer that protects a circuit from voltage signals provided from an external device. The input/output buffer includes a reference power generation circuit connected to a high voltage power supply and a low voltage power supply to convert the voltage of an external voltage signal and generate reference power. The reference power generation circuit has a protection circuit including a plurality of MOS transistors for decreasing the voltage of the external voltage signal to a predetermined voltage when the input/output buffer is not supplied with the voltage of the high voltage power supply. Each of the MOS transistors has a back gate connected to a predetermined node at which the voltage is less than the voltage of the high voltage power supply and greater than the voltage of the low voltage power supply.

  Recently Added Patents
System and method for selecting a video encoding format based on feedback data
Image processing unit, image processing method and program
Knee guard
Electronic control apparatus
Sensor apparatus and information processing apparatus
Method and apparatus for interactive distribution of digital content
Low power voltage controlled oscillator (VCO)
  Randomly Featured Patents
Rotor for the treatment of liquid
Modular microscope construction
Ion sources
Gripping means for machine for filling and closing flexible tubes
Fortified polyacrylate resins
Chemically amplified resist
Inkjet printing media handling system with advancing guide shim
Method for verifying television receiver sets with access control and corresponding receiver set
Tube for a nuclear fuel assembly, and method for making same
Remotely releasable fuel filler door with controlled opening