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:
Oct. 09, 1990
Filed:
Jan. 25, 1989
Karl-Diether Nutz, Oedheim, DE;
Telefunken electronic GmbH, Heilbronn, DE;
Abstract
A squaring circuit and an i.sup.2 t circuit utilizing the squaring circuit. The squaring circuit comprises a voltage-controlled oscillator and a frequency/current converter which are connected to one another, with the input voltage signal being supplied to the voltage-controlled oscillator and to the frequency/current converter on the one hand, and with the output voltage signal being tappable at an RC network connected to the output of the frequency/current converter on the other hand. The value of the output voltage is proportional to the square of the value of the input voltage. With this squaring circuit, it is possible to construct an i.sup.2 t protective circuit for protection of an electrical consumer from overload.