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:
Mar. 03, 2009
Filed:
Sep. 28, 2007
Randolf Kraus, Bretten, DE;
Randolf Kraus, Bretten, DE;
E.G.O. Elektro-Geraetebau GmbH, Oberderdingen, DE;
Abstract
A circuit for generating a square wave signal (UN) comprising a DC voltage source (UG), a driver stage (TS), which alternately connects a control node (SK) to ground (GND) or the DC voltage (UG), a diode (D) and a first capacitor (C), which are coupled in series between a first pole (P) of the DC voltage source and the control node (SK). The circuit further comprises an output stage (AS) comprising a first transistor (TR) and a second transistor (TR), which are connected such that the output stage (AS) the transistors are alternately conductive. The transistors (TR, TR) are coupled in series between a connecting node (N), formed between the diode (D) and the first capacitor (C), and the control node (SK). A connecting node (N) between the first transistor (TR) and the second transistor (TR) forms an output terminal for emitting the square wave signal.