Wave transmission lines and networks – Automatically controlled systems – Impedance matching
Patent
1989-08-11
1990-08-21
Gensler, Paul
Wave transmission lines and networks
Automatically controlled systems
Impedance matching
333 32, H03H 1130
Patent
active
049510096
ABSTRACT:
A matching network matches an output impedance of a generator with an input impedance of a load. The matching network includes a first variable impedance element, a second variable impedance element, a reflected power detector and a control circuit. Each of the first variable impedance elements are constructed using magnetically saturable reactors. For example, each magnetically saturable reactor may be a transformer composed of primary and secondary windings wound around a non-linear ferromagnetic core. The reflected power detector detects power reflected from the matching network to the generator. The control circuit receives from the reflected power detector a signal which represents the changes in reflected power. Using this feedback the control means varies the impedance through the first variable impedance element and the second variable impedance element until the reflected power is negligible. The control circuit then separates out the component of the change in reflected power which is due to dithering of the first variable impedance element from the change in reflected power which is due to dithering of the second variable impedance element. Using the components of change, the control circuit continuously varies the steady state impedance of the first variable impedance and the steady state impedance of the second variable impedance in directions which minimize the reflected power.
REFERENCES:
patent: 2611030 (1952-09-01), Sontheimer
patent: 2884632 (1959-04-01), Dewitz et al.
patent: 4015223 (1977-03-01), Cheze
patent: 4375051 (1983-02-01), Theall
patent: 4493112 (1985-01-01), Bruene
Applied Materials Inc.
Gensler Paul
Hickman Paul L.
Weller Douglas
LandOfFree
Tuning method and control system for automatic matching network does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Tuning method and control system for automatic matching network, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Tuning method and control system for automatic matching network will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1681090