Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
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
Optical writer and image forming apparatus including same
Composite materials comprising aggregate and an elastomeric composition
System for collecting computer application usage data of targeted application programs executed on a plurality of client devices
Antenna array system
Display stand for a mobile tablet computer
Architecture for accelerated computer processing
Method and system for providing magnetic junctions having improved characteristics
  Randomly Featured Patents
Child resistant closures
Associating website clicks with links on a web page
Management information base attribute discriminator
Thermally-responsive record material
Method and apparatus for cataloguing and scripting the display of informational content
Boring device
Semiconductor integrated circuit, and electrostatic withstand voltage test method and apparatus therefor
End-to-end service quality for latency-intensive internet protocol (IP) applications in a heterogeneous, multi-vendor environment
Rotary actuator device for controlling the stroke of gas charge exchange valves in the cylinder head of an internal combustion engine
UWB printed antenna