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
Systems and methods for electronic verification of vehicle insurance coverage
Engineered enzymes with methionine-gamma-lyase enzymes and pharmacological preparations thereof
Method and system for providing complete internet anywhere with partial server processing
Power collecting device, power measuring device, and power collecting method
Secure soft SIM credential transfer
Transmission apparatus and network protection method
Method and apparatus for reducing and controlling highway congestion to save on fuel costs
  Randomly Featured Patents
Method for forming a three dimensional object
Information transmission system
Liquid metering system
Lighter
System for mounting electrical and optical conductors to floor beams of an aircraft
Track following system for optical disc drive
ESD protection circuit triggered by diode
Iron dispersant for boiler water
Temperatures stable saw sensor with third-order elastic constants
System and method for controlling call placement rate for telephone communication systems