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
Modulation of TIM receptor activity in combination with cytoreductive therapy
Apparatus and method of managing radio bearer in wireless communication system
Elastic polypropylene-based film compositions
Porous objects having immobilized encapsulated biomolecules
Battery grid
Unified recovery
Method and computer system for automatic vectorization of a vessel tree
  Randomly Featured Patents
Methods and compositions for derepression of IAP-inhibited caspase
Anti-clogging method for maximal flux and prolonged filtration time
Multiple low pressure selector relay and method of making the same
Solid lubricant for bearings comprising a mixture containing a lubricating grease and polyethylene powder
System for managing input/output accesses at a bridge/memory controller having a status register for recording cause of interrupt
Slotted orifice flowmeter
Developing device, process cartridge, method and image forming apparatus for developing an electrostatic latent image on an image carrier
Therapeutic agent for digestive tract diseases
Sodium vapor lamp with emission aperture
Vacuum packaged inflatable flotation device