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:
Jul. 23, 1996
Filed:
May. 03, 1994
Dieter Brueckmann, Meerbusch, DE;
Johannes van den Boom, Duesseldorf, DE;
Siemens Aktiengesellschaft, Munich, DE;
Abstract
A circuit configuration for monitoring a supply voltage of a processor unit being clocked by an oscillator and requiring a minimum supply voltage, includes an undervoltage detector being connected to the processor unit. The undervoltage detector is in operation and generates a reset signal at a supply voltage being in a range between a lower first limit value and a higher second limit value and being below the minimum supply voltage. A comparator is connected to the processor unit. The comparator is in operation at a supply voltage above the second limit value and the comparator generates an activation signal at a supply voltage above a third limit value being above the minimum supply voltage. The oscillator is in operation at a supply voltage above the second limit value and the processor unit is in operation upon the appearance of the activation signal.