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. 07, 1994
Filed:
Aug. 11, 1992
NEC Corporation, Tokyo, JP;
Abstract
A semiconductor integrated circuit device is equipped with an internal power source unit for distributing an internal power voltage level between component circuitries, and the internal power voltage level is regulated to a variable reference voltage level, wherein a first main voltage regulator regulates the variable reference voltage level to a primary reference voltage level before reaching a threshold voltage level; however, after the primary reference voltage level becomes lower than the threshold voltage level, a latching circuit supplies an activation signal to a second main voltage regulator, and the second main voltage regulator regulates the variable reference voltage level to a secondary reference voltage level so that the second main voltage regulator continuously controls the variable voltage level without any abrupt transition, thereby allowing the internal power source unit to adjust the internal power voltage level to an arbitrary point.