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
Bluetooth headset
Quantitative oxygen imaging systems and methods using echo-based single point imaging
Systems and related methods of user-guided searching
Invisible fence battery charger
Vehicle speed verification system and method
Highly stable electrolytic water with reduced NMR half line width
Communicating channel state information using predictive vector quantization
  Randomly Featured Patents
File removal with no available disk blocks in redirect-on-write file systems
Apparatus for neutralizing toner in a no charge exchange transfer
Splice assembly
Food storage container
Padded frame
Watercraft loading and launching apparatus
Electrophysiological probes having selective element actuation and variable lesion length capability
Business process simulation testing for bank branches using avatars
Truck bed loading platform
System and method for controlling a furnace