Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Patent Inventor Names
Chao-Cheng Lee0
An-Ming Lee0
Date of Patent
January 30, 2007
0Patent Application Number
111110870
Date Filed
April 20, 2005
0Patent Primary Examiner
Patent abstract
The present invention discloses an impedance matching circuit with automatic adjustment and a method thereof. The impedance matching circuit comprises: a resistor, for receiving a reference voltage and generating a reference current; a detection unit, for detecting resistance variation and generating a plurality of comparison voltages according to said reference current; a comparison unit, for comparing said reference voltage with said comparison voltages, and generating a control signal; and a composite resistor unit, for receiving said control signal and generating a matched impedance. Therefore, a matched impedance value can be obtained within a designed range in despite of the manufacturing process and the operation environment.
Timeline
No Timeline data yet.
Further Resources
No Further Resources data yet.
