Converter for changing Cartesian vector variables into polar vec

Details Converter for changing Cartesian vector variables into polar vec Converter for changing Cartesian vector variables into polar vec

1979-03-21

1981-12-15

Gruber, Felix D.

Boots, shoes, and leggings

364851, G06G 722

Patent

active

043062962

ABSTRACT:
A coordinate converter useful for field-oriented control of a rotating-field machine includes a divider, a first adder, a multiplier and a second adder by which the magnitude of the vector and the tangent of the half-angle relative to one axis can be determined. An ancillary unit forms an angle-proportional variable from the half-angle tangent. A rotating vector can also be processed.

REFERENCES:
patent: 2634909 (1953-04-01), Lehman
patent: 2763430 (1956-09-01), Gray
patent: 2927734 (1960-03-01), Vance
patent: 2996251 (1961-08-01), Hunt
patent: 3371199 (1968-02-01), Schwartzenberg et al.
patent: 3710088 (1973-01-01), Blaschke et al.
patent: 3737639 (1973-06-01), Fletcher et al.
patent: 3825738 (1974-07-01), Blaschke et al.

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