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:
Nov. 11, 1997
Filed:
Oct. 30, 1995
Jeung Won Suh, Kyoungki-do, KR;
Chang Ho Jung, Kyoungki-do, KR;
Hyundai Electronics Industries Co., Ltd., Kyoungki-do, KR;
Abstract
A reference voltage generation circuit for a semiconductor memory device comprising a reference voltage generator for generating first and second reference voltages, the first and second reference voltages having the opposite response characteristics with respect to a variation in a temperature or a supply voltage, a start-up circuit for determining an initial condition of the reference voltage generator in response to the supply voltage to stabilize the operation of the reference voltage generator, and a voltage amplifier for compensating a target reference voltage for the temperature variation in response to the first and second reference voltages from the reference voltage generator so that the target reference voltage can always be constant in level. The first reference voltage has a positive response characteristic with respect to the temperature and the supply voltage and the second reference voltage has a negative response characteristic with respect to the temperature and the supply voltage.