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
Method of requesting CQI reports
Apparatus for controllable delay cell and associated methods
Attribute information providing system
Detachably integrated battery charger for mobile cell phones and like devices
Method for spore detection
Error detection and recovery tool for logical volume management in a data storage system
Image-processing method and program, and image-processing apparatus
  Randomly Featured Patents
Signal processing circuit comprising an attenuating unit, a detecting unit, and an attenuation rate setting unit
6-acylaminophenyl-5-alkyl-4,5-dihydro-3(2H)-pyridazinone compounds useful as blood pressure depressants, antithrombotic agents and in the treatment of heart disease
Metal composition containing metal acetylide, blank having metallic coating formed therewith, and method for forming the metallic coating
Contact detection device
Mushroom casing composition and process
Cold plate for beverage dispensing
Focus detecting device with varying pitch cylindrical lens element
Polish composition and method of use
Nonionic alkanolamides as shale stabilizing surfactants for aqueous well fluids
Commutator for flat motor