Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Variable output power supply










Image Number 4 for United States Patent #6788151.

A variable output power supply for use in a highly efficient linear amplification system includes an envelope detector having at least one input for receiving an input signal to be amplified. The envelope detector generates, as an output, a control signal that is representative of an envelope of the input signal. The variable output power supply further includes a controllable source that is coupled to the envelope detector. The controllable source generates an output voltage and/or current that is responsive to the control signal, such that the output of the variable output power supply dynamically changes as a function of the envelope of the input signal. When employed in a linear amplification system, the variable output power supply provides a supply voltage to a linear amplifier which can be dynamically varied in response to the envelope of the input signal so as to provide a substantially constant voltage supply headroom for the amplifier. In this manner, an efficiency and frequency response of the amplification system is improved, and a reduction in overall power dissipation of the amplification system can be achieved.








 
 
  Recently Added Patents
Mineral, nutritional, cosmetic, pharmaceutical, and agricultural compositions and methods for producing the same
Toy
Plural component proportioner
Determining system for localization methods combination
Dual-leadframe multi-chip package and method of manufacture
Method and system for providing magnetic junctions having improved characteristics
Systems and methods for generating a user profile based customized media guide with user-generated content and non-user-generated content
  Randomly Featured Patents
Light display unit
Image forming apparatus having detachable process cartridge with protective transfer zone cover
Process for producing SIALON sintered product
Bookmarking television program and channel selections
Ground terminal and method for mounting a printed board mounted with a ground terminal to a chassis
In-borehole gas monitor apparatus and method
Boiling heat transfer pipes
Camera
System and method for editing and viewing a very wide flat file
Automobile tire