KR970053808A - Power supply voltage detector - Google Patents

Power supply voltage detector Download PDF

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Publication number
KR970053808A
KR970053808A KR1019950048008A KR19950048008A KR970053808A KR 970053808 A KR970053808 A KR 970053808A KR 1019950048008 A KR1019950048008 A KR 1019950048008A KR 19950048008 A KR19950048008 A KR 19950048008A KR 970053808 A KR970053808 A KR 970053808A
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KR
South Korea
Prior art keywords
power supply
supply voltage
voltage
control signals
voltage level
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KR1019950048008A
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Korean (ko)
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KR0161857B1 (en
Inventor
김성수
Original Assignee
문정환
Lg 반도체 주식회사
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Priority to KR1019950048008A priority Critical patent/KR0161857B1/en
Publication of KR970053808A publication Critical patent/KR970053808A/en
Application granted granted Critical
Publication of KR0161857B1 publication Critical patent/KR0161857B1/en

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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
    • G01R19/165—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values
    • G01R19/16566—Circuits and arrangements for comparing voltage or current with one or several thresholds and for indicating the result not covered by subgroups G01R19/16504, G01R19/16528, G01R19/16533

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measurement Of Current Or Voltage (AREA)

Abstract

본 발명은 전원전압검출장치에 관한 것으로서, 특히 반도체 제조공정시에 발생하는 문턱전압(Threshold Voltage)의 변화에 관계없이 안정적이고 일정한 전원전압을 검출하기에 적당하도록 한 전원전압검출장치에 관한 것이다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a power supply voltage detection device, and more particularly, to a power supply voltage detection device suitable for detecting a stable and constant power supply voltage regardless of a change in a threshold voltage generated during a semiconductor manufacturing process.

상기와 같은 목적을 달성하기 위한 본 발명에 따른 전원전압검출장치는 전원전압과 Vss사이에 연이어 직렬로 연결된 복수개의 트랜지스터와, 상기 복수개의 트랜지스터간의 출력단들과 리셋트신호를 비교하여 복수개의 제어신호를 출력하는 전압비교기와, 상기 전압비교기의 제어신호들을 저장하여 유지시키는 복수개의 래치와, 상기 래치의 복수개 제어신호에 따라 스위칭 동작하는 복수개의 트랜스미션게이트와, 상기 복수개의 트랜스미션 게이트 일측에 각각 일정갯수씩 연결되어 각각 다른 문턱전압이 설정된 다이오드용 트랜지스터와, 상기 복수개의 트랜스미션 게이트에 상기 전원전압을 인가하는 공급트랜지스터와, 상기 공급트랜지스터의 출력전압레벨을 검출, 반전하는 전압레벨검출용 인버터와, 상기 전압레벨검출용 인버터에 포함된 잡음성분을 제거하는 커패시터와, 상기 커패시터에서 잡음이 제거된 상기 전압레벨을 증폭 및 반전시키는 증폭용 인버터로 이루어짐을 특징으로 한다.The power supply voltage detection device according to the present invention for achieving the above object is a plurality of control signals by comparing a plurality of transistors connected in series between the power supply voltage and Vss, the output terminal and the reset signal between the plurality of transistors A voltage comparator for outputting a voltage, a plurality of latches for storing and maintaining control signals of the voltage comparator, a plurality of transmission gates for switching according to the plurality of control signals of the latches, and a predetermined number of sides of the plurality of transmission gates, respectively. A diode transistor connected to each other and having different threshold voltages, a supply transistor for applying the power supply voltage to the plurality of transmission gates, a voltage level detection inverter for detecting and inverting an output voltage level of the supply transistor, Job included in inverter for voltage level detection And the capacitor, and a voltage level of the noise is removed from the capacitor to eliminate the component characterized by made of an inverter amplifier for amplifying and inverting.

따라서, 본 발명의 전원전압검출장치는 반도체 제조공정상에서 결정된 문턱전압의 변화를 감지하여 원하는 일정 레벨의 전원전압값이 검출됨으로써 시스템 클럭 발진 안정시간중에, 문턱전압의 변화에 따른 출력전원전압을 보상하고 안정적인 전원전압레벨을 검출하는 효과가 있다.Accordingly, the power supply voltage detection device of the present invention detects a change in the threshold voltage determined in the semiconductor manufacturing process and detects a desired power supply voltage value, thereby compensating the output power supply voltage according to the change of the threshold voltage during the system clock oscillation settling time. It is effective to detect a stable power supply voltage level.

Description

전원전압검출장치Power supply voltage detector

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제2도는 본 발명에 따른 전원전압검출장치를 나타낸 회로도.2 is a circuit diagram showing a power supply voltage detection device according to the present invention.

Claims (2)

전원전압과 Vss사이에 연이어 직렬로 연결된 복수개의 트랜지스터와, 상기 복수개의 트랜지스터간의 출력단들과 리셋트신호를 비교하여 복수개의 제어신호를 출력하는 전압비교기와, 상기 전압비교기의 제어신호들을 저장하여 유지시키는 복수개의 래치와, 상기 래치의 복수개 제어신호에 따라 스위칭 동작하는 복수개의 트랜스미션게이트와, 상기 복수개의 트랜스미션게이트 일측에 각각 일정 갯수씩 연결되어 각각 다른 문턱전압이 설정된 다이오드용 트랜지스터와, 상기 복수개의 트랜스미션게이트에 상기 전원전압을 인가하는 공급트랜지스터와, 상기 공급트랜지스터의 출력전압레벨을 검출, 반전하는 전압레벨검출용 인버터와, 상기 전압레벨 검출용 인버터에 포함된 잡음성분을 제거하는 커패시터와, 상기 커패시터에서 잡음이 제거된 상기 전압레벨을 증폭 및 반전시키는 증폭용 인버터로 이루어짐을 특징으로 하는 전원전압검출장치.A plurality of transistors connected in series between a power supply voltage and Vss, a voltage comparator for comparing the output terminals and reset signals between the plurality of transistors and outputting a plurality of control signals, and storing and maintaining control signals of the voltage comparator A plurality of latches, a plurality of transmission gates switching according to a plurality of control signals of the latches, a diode transistor having a predetermined number of different threshold voltages connected to one side of the plurality of transmission gates, respectively, A supply transistor for applying the power supply voltage to the transmission gate, a voltage level detection inverter for detecting and inverting an output voltage level of the supply transistor, a capacitor for removing noise components included in the voltage level detection inverter, The noise is removed from the capacitor Power supply voltage detecting apparatus, characterized by the pressure level in yirueojim inverter amplifier for amplifying and inverting. 제1항에 있어서, 상기 전압비교기는 시스템 클럭발진 안전시간동안에 동작함을 특징으로 하는 전원전압검출장치.The power supply voltage detection device according to claim 1, wherein the voltage comparator operates during a system clock oscillation safety time. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019950048008A 1995-12-08 1995-12-08 Detection device for power supply voltage KR0161857B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019950048008A KR0161857B1 (en) 1995-12-08 1995-12-08 Detection device for power supply voltage

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019950048008A KR0161857B1 (en) 1995-12-08 1995-12-08 Detection device for power supply voltage

Publications (2)

Publication Number Publication Date
KR970053808A true KR970053808A (en) 1997-07-31
KR0161857B1 KR0161857B1 (en) 1998-12-01

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KR1019950048008A KR0161857B1 (en) 1995-12-08 1995-12-08 Detection device for power supply voltage

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101018691B1 (en) * 2008-12-30 2011-03-04 주식회사 하이닉스반도체 Vdd detector in semiconductor memory device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101018691B1 (en) * 2008-12-30 2011-03-04 주식회사 하이닉스반도체 Vdd detector in semiconductor memory device

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Publication number Publication date
KR0161857B1 (en) 1998-12-01

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