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
Non-aqueous pigment ink
Source-of-leakage detectable E-mail address forming, sending and detection
Prevention and treatment of amyloidogenic disease
Piezoelectric compositions
Capo
Decorative side bar for a motor vehicle
Display screen with icon set
  Randomly Featured Patents
Video playing system, video playing apparatus, control method for playing video, storage medium storing program for playing video
Low temperature inert gas purifier
Disk device with restricting mechanism for driving unit
Slew length timer
Document recorder
Starter/generator speed sensing using field weakening
Function key area for a remote control
Power driven tree stand
Video tumor fighting system
Photoflash lamp