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
Automatic portable electronic device configuration
Transmission channel for ultrasound applications
Writing implement
Light emitting element, method for manufacturing the light emitting element, optical element and method for manufacturing the optical element
Image forming apparatus
Generating network topology parameters and monitoring a communications network domain
LED lamp including heat dissipator
  Randomly Featured Patents
Component mounting method
Method for controlling a cycle of operation in a laundry treating appliance
Exposure apparatus and device fabrication method
Non-contact type atomic microscope and observation method using it
Fail-safe machine tool operational setting system with prerecorded verbal instructions
Thread tension device for sewing machine
Printing press temperature adjustment system
Slide fastener having discrete coupling elements
Spray gun for cleaning and removing standing particles from wafers and substrates
Generation of a voltage proportional to temperature with accurate gain control