Method and apparatus for operating a generator supplying a high-

Details Method and apparatus for operating a generator supplying a high- Method and apparatus for operating a generator supplying a high-

1995-01-04

1997-06-10

Dougherty, Thomas M.

Electrical generator or motor structure

Non-dynamoelectric

Piezoelectric elements and devices

H03L 700, H03H 900

Patent

active

056379471

ABSTRACT:
The invention relates to a method for a unique control of the frequency and utput power of a digital generator, in particular for an ultrasonic welding process. Based on a digital processing, the method according to the present invention compensates not only for variations of the resonant frequency in a broad range, but further provides to control a shifting of the resonant point during the welding process in response to temperature or pressure variations. Power variations caused by variations of the line supply voltage or by the pressure are detected and levelled out by the software. The software monitors the overall operation of in-line machinery, matches its parameters and monitors the complete cycle. The software further ensures an optimum efficiency and effectively protects the end stage against stress caused by high-reactive currents.

REFERENCES:
patent: 3819961 (1974-06-01), Bourgeois et al.
patent: 4275363 (1981-06-01), Mishiro et al.
patent: 4277710 (1981-07-01), Harwood et al.
patent: 4560998 (1985-12-01), Wimmer
patent: 4687962 (1987-08-01), Elbert
patent: 4748365 (1988-05-01), Poupaert et al.
patent: 4808948 (1989-02-01), Patel et al.
patent: 4879528 (1989-11-01), Gotanda
patent: 4973876 (1990-11-01), Roberts
patent: 5001442 (1991-03-01), Hanaie et al.
patent: 5026387 (1991-06-01), Thomas
patent: 5170929 (1992-12-01), Long et al.
patent: 5192889 (1993-03-01), Myohga
patent: 5199630 (1993-04-01), Fleber et al.
patent: 5315533 (1994-05-01), Stich et al.
patent: 5460595 (1995-10-01), Hall et al.

Affiliated with

Also associated with

Rating

Method and apparatus for operating a generator supplying a high- does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method and apparatus for operating a generator supplying a high-, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for operating a generator supplying a high- will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-767502