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:
Dec. 13, 2005
Filed:
Apr. 14, 2004
Harald Doppke, Mulheim an der Ruhr, DE;
Detlev Theil, Dusseldorf, DE;
Torsten Harms, Kempen, DE;
Stefan Van Waasen, Duisburg, DE;
Christian Grewing, Dusseldorf, DE;
Harald Doppke, Mulheim an der Ruhr, DE;
Detlev Theil, Dusseldorf, DE;
Torsten Harms, Kempen, DE;
Stefan van Waasen, Duisburg, DE;
Christian Grewing, Dusseldorf, DE;
Infineon Technologies AG, Munich, DE;
Abstract
A circuit arrangement for regulating the duty cycle of an electrical signal including a first input differential amplifier, to which an input signal is applied; a first current source for controlling the current through the first input differential amplifier; a second input differential amplifier, to which the same input signal is applied; a second current source for controlling the current through the second input differential amplifier; a device which generates a fluctuating voltage signal from output signals of the two input differential amplifiers; a buffer device, which converts the fluctuating voltage signal into a digital output signal; a capacitance and a device for charging and discharging the capacitance in time with the digital output signal. The voltage present at the capacitance is fed to the first and second current sources as control voltage and effects regulation of the two current sources in opposite senses.