KR101353437B1 - 정전 용량 센서 컨트롤러의 노이즈 모니터링 장치 - Google Patents
정전 용량 센서 컨트롤러의 노이즈 모니터링 장치 Download PDFInfo
- Publication number
- KR101353437B1 KR101353437B1 KR1020120124694A KR20120124694A KR101353437B1 KR 101353437 B1 KR101353437 B1 KR 101353437B1 KR 1020120124694 A KR1020120124694 A KR 1020120124694A KR 20120124694 A KR20120124694 A KR 20120124694A KR 101353437 B1 KR101353437 B1 KR 101353437B1
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- KR
- South Korea
- Prior art keywords
- noise
- capacitor
- noise monitoring
- sensor controller
- ground terminal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R27/00—Arrangements for measuring resistance, reactance, impedance, or electric characteristics derived therefrom
- G01R27/02—Measuring real or complex resistance, reactance, impedance, or other two-pole characteristics derived therefrom, e.g. time constant
- G01R27/26—Measuring inductance or capacitance; Measuring quality factor, e.g. by using the resonance method; Measuring loss factor; Measuring dielectric constants ; Measuring impedance or related variables
- G01R27/2605—Measuring capacitance
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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
- G01R19/12—Measuring rate of change
-
- 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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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R23/00—Arrangements for measuring frequencies; Arrangements for analysing frequency spectra
- G01R23/16—Spectrum analysis; Fourier analysis
- G01R23/20—Measurement of non-linear distortion
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Mathematical Physics (AREA)
- Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
Abstract
Description
도 2는 도 1에서의 로드(140)가 터치 스크린 패널로 대체된 실시예이다.
110 : 전원단, 120 : 접지단
130 : 정전 용량 센서 컨트롤러, 131 : 노이즈 모니터링 노드
Claims (3)
- 정전 용량 센서 컨트롤러의 노이즈 모니터링 장치에 있어서,
전원단과 접지단에 순방향으로 직렬 연결된 제 1 커패시터와 제 2 커패시터; 및
상기 제 1 커패시터와 제 2 커패시터 사이의 노드와 연결된 노이즈 모니터링부;
를 포함하되, 상기 노이즈 모니터링부는 상기 제 1 커패시터와 제 2 커패시터 사이에 존재하는 노이즈 모니터링 노드 전압의 가변 크기를 측정하여, 상기 전원단 또는 접지단의 노이즈 존재 여부를 판단하는, 노이즈 모니터링 장치.
- 제 1 항에 있어서,
상기 노이즈 모니터링부는 상기 노이즈 모니터링 노드 전압의 가변 크기를 상기 전원단과 접지단에 유입되는 노이즈의 세기로 산출하는, 노이즈 모니터링 장치.
- 제 1 항에 있어서,
상기 노이즈 모니터링부는 상기 노이즈 모니터링 노드 전압과 기 설정된 기준 전압(Vref)의 비교를 통해 상기 노이즈 존재 여부를 판단하는, 노이즈 모니터링 장치.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020120124694A KR101353437B1 (ko) | 2012-11-06 | 2012-11-06 | 정전 용량 센서 컨트롤러의 노이즈 모니터링 장치 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020120124694A KR101353437B1 (ko) | 2012-11-06 | 2012-11-06 | 정전 용량 센서 컨트롤러의 노이즈 모니터링 장치 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| KR101353437B1 true KR101353437B1 (ko) | 2014-01-20 |
Family
ID=50146010
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1020120124694A Expired - Fee Related KR101353437B1 (ko) | 2012-11-06 | 2012-11-06 | 정전 용량 센서 컨트롤러의 노이즈 모니터링 장치 |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR101353437B1 (ko) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100627922B1 (ko) | 2001-10-17 | 2006-09-25 | 델피 테크놀로지스 인코포레이티드 | 정전용량 접근 센서의 정전용량 변화를 감지하기 위한방법 및 장치 |
| KR100832410B1 (ko) | 2004-03-30 | 2008-05-26 | 아이신세이끼가부시끼가이샤 | 정전 용량 변화 검출 장치 |
| KR20110076060A (ko) * | 2009-12-29 | 2011-07-06 | 에스이티아이(주) | 터치센서의 정전용량 측정 장치 및 방법 |
-
2012
- 2012-11-06 KR KR1020120124694A patent/KR101353437B1/ko not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100627922B1 (ko) | 2001-10-17 | 2006-09-25 | 델피 테크놀로지스 인코포레이티드 | 정전용량 접근 센서의 정전용량 변화를 감지하기 위한방법 및 장치 |
| KR100832410B1 (ko) | 2004-03-30 | 2008-05-26 | 아이신세이끼가부시끼가이샤 | 정전 용량 변화 검출 장치 |
| KR20110076060A (ko) * | 2009-12-29 | 2011-07-06 | 에스이티아이(주) | 터치센서의 정전용량 측정 장치 및 방법 |
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