The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 15, 1982
Filed:
May. 09, 1980
Applicant:
Inventor:
Felix Blaschke, Erlangen, DE;
Assignee:
Siemens Aktiengesellschaft, Munich, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06G / ;
U.S. Cl.
CPC ...
364815 ; 364817 ; 364841 ;
Abstract
For forming ##EQU1## in a pulse width multiplier, two input voltages b.sub.i are summed at the input of an inverter and are added, after each passes through a separate switch and proportional stage, at the input of a smoothing stage, to the inverter output signal. The switches are actuated by switching pulses which are width-modulated in accordance with the factors c.sub.i. The calculated sum is present at the output of the smoothing stage. Great accuracy in field-oriented control of rotating-field machines is possible when vector analyzers and vector rotators designed in this manner are used.