Resources Contact Us Home
Digital-to-analog converter biasing control circuit

Image Number 3 for United States Patent #4631518.

A device for controlling the output voltage range of a digital-to-analog (D/A) converter of the type wherein the converter output voltage range is proportional to the magnitude of an applied bias current. The device comprises means to sample and store a selected converter output voltage, means to produce a variable current of magnitude proportional to the stored converter output voltage, and a source of constant current. The constant current and the variable current are summed and applied to the converter as the bias current. The converter output voltage range is dependent on the variable portion of the applied bias current which is in turn dependent on the stored, selected converter output voltage.

  Recently Added Patents
Methods and systems for registering a wireless access terminal with a radio access network
Heat spreader as mechanical reinforcement for ultra-thin die
Integrated circuit having microelectromechanical system device and method of fabricating the same
Systems and methods for using property tables to perform non-iterative malware scans
Single crystal silicon carbide substrate and method of manufacturing the same
Pneumatically or electromechanically actuatable disc brake
Garment with lumbar traction device
  Randomly Featured Patents
Wet powder film-forming compositions
Variable optical delay line with a large continuous tuning range
Folding hay rake
Rock-bolting apparatus and method
Copper alloy foil
Classification for media stream packets in a media gateway
One-piece toilet
Optically readable information disc provided with a reflective optical structure
Alpine ski binding having release logic for inhibiting anterior cruciate ligament injury