Resources Contact Us Home
Driver circuit for developing quiescent and dynamic operating signals for complementary transistors

Image Number 2 for United States Patent #4041407.

The driver circuit includes a differential amplifier, a double-to-single ended converter, an emitter follower amplifier and an output stage having one portion for driving one external complementary transistor and another portion for driving another complementary transistor. The driver output transistors of each portion of the output stage each has a biasing network including a semiconductor junction and a resistor which are driven by a constant current source. The bias networks enable the driver output transistors to provide quiescent currents of known magnitudes for biasing the complementary output transistors and to have high current gains so that the current source is able to supply a constant current of minimal magnitude. The biasing networks further provide temperature compensation of the driver output transistors. The driver output stage is suitable for being driven by a single ended drive signal.

  Recently Added Patents
Extract of Vanilla planifolia
Virtual links in a routed ethernet mesh network
Data feed management
Semiconductor device having a multilevel interconnect structure and method for fabricating the same
Information processing apparatus capable of authentication processing with improved user convenience, control program for information processing apparatus, and recording medium having control
Micromechanical component, device for beam deflection of monochromatic light, and spectrometer
Method for transferring inventory between virtual universes
  Randomly Featured Patents
Automatic food dispenser
Daylight film splicer
Optical information read apparatus
Tub enclosure
Machine for sewing together workpiece parts having edges of equal or unequal length by means of a bead seam
Device and method for discharge and cleaning of the web at the output of a carder
Database predicate constraints on structured query language statements
Direct thermal and inkjet dual-sided printing
Pipe structure
Downhole pressure measurements of drilling mud