Circuit for detecting the impedance of a load

Details Circuit for detecting the impedance of a load Circuit for detecting the impedance of a load

2005-09-09

2010-10-26

Dole, Timothy J (Department: 2831)

Electricity: measuring and testing

Impedance, admittance or other quantities representative of...

Distributive type parameters

C327S058000, C455S107000, C455S115400, C455S123000

Reexamination Certificate

active

07821273

ABSTRACT:
The invention refers to a circuit and a method for detecting the impedance of a load, whereby the circuit and the method can be used by an impedance matching circuit. Impedance matching circuits need a complex algorithm to adjust the impedance accordingly. This algorithm renders the response time to be long. It has been found out that the complexity partially stems from the fact that the phase of the reflection coefficient is not known over the full range of 0° to 360°. A quadrature phase detector is used to provide the full phase information.

REFERENCES:
patent: 4262246 (1981-04-01), Fujii
patent: 4290009 (1981-09-01), Sanpei et al.
patent: 4483112 (1984-11-01), Rueblinger
patent: 4483680 (1984-11-01), Daly
patent: 4493112 (1985-01-01), Bruene
patent: 4721901 (1988-01-01), Ashley
patent: 4962359 (1990-10-01), Dunsmore
patent: 5408690 (1995-04-01), Ishikawa et al.
patent: 5483680 (1996-01-01), Talbot
patent: 6060888 (2000-05-01), Blackham et al.
patent: 6192318 (2001-02-01), Yogo et al.
patent: 6819052 (2004-11-01), Kitamura et al.
patent: 6917245 (2005-07-01), Dupuis et al.
patent: 2004/0027138 (2004-02-01), Pickerd et al.
patent: 2004/0257093 (2004-12-01), Sakiyama
patent: 0 662 753 (1998-09-01), None

Affiliated with

Also associated with

Rating

Circuit for detecting the impedance of a load does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Circuit for detecting the impedance of a load, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Circuit for detecting the impedance of a load will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4232439