Resources Contact Us Home
Amplifier having output range that exceeds supply voltage

Image Number 4 for United States Patent #6011440.

Amplifier circuitry is provided having an output voltage range that exceeds its supply rail voltage. Such an amplifier may be useful in battery powered applications calling for driving a high impedance load with a low current, moderate bandwidth signal The amplifier circuitry includes a transconductance amplifier, for providing a high output impedance, and a charge pump DC/DC converter, for providing a high supply voltage to the transconductance amplifier. In one embodiment of the invention, the gain of the amplifier is a function of the input voltage so as to linearize a transfer function between the amplifier input and a response of a load at the amplifier's output.

  Recently Added Patents
Processor micro-architecture for compute, save or restore multiple registers, devices, systems, methods and processes of manufacture
Navigation system and navigation apparatus
Process cartridge and electrophotographic image forming apparatus
Optical packet signal transmission device and WDM optical communication network
Methods and apparatus for ultrasonic cleaning
Pipe coupling
Non-volatile memory array and device using erase markers
  Randomly Featured Patents
Liquid container
Electronic component comprising printed circuit elements disposed on a folded tape and method of making such component
Sacral fixation device
Digital sensing multi access protocol
Orthogonal mode transducer having interface plates at the junction of the waveguides
Slot machine shaped slipper
Angled caulk nozzle
Mill, in particular for milling of bone, as well as a drum, provided with cutting members, applicable in the mill
Tubular screen electrical connection support for solid oxide fuel cells
Enhanced data converters using compression and decompression