KR940006503Y1 - 레벨(level) 검출회로 - Google Patents
레벨(level) 검출회로 Download PDFInfo
- Publication number
- KR940006503Y1 KR940006503Y1 KR2019890011947U KR890022947U KR940006503Y1 KR 940006503 Y1 KR940006503 Y1 KR 940006503Y1 KR 2019890011947 U KR2019890011947 U KR 2019890011947U KR 890022947 U KR890022947 U KR 890022947U KR 940006503 Y1 KR940006503 Y1 KR 940006503Y1
- Authority
- KR
- South Korea
- Prior art keywords
- circuit
- nand
- signal
- amplifier
- zener diode
- 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.)
- Expired - Fee Related
Links
- 238000001514 detection method Methods 0.000 claims description 10
- 239000003990 capacitor Substances 0.000 claims description 7
- 230000003321 amplification Effects 0.000 claims 1
- 238000003199 nucleic acid amplification method Methods 0.000 claims 1
- 230000000052 comparative effect Effects 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
Landscapes
- Amplifiers (AREA)
- Tone Control, Compression And Expansion, Limiting Amplitude (AREA)
Abstract
Description
Claims (1)
- 가변되는 저항(R1)과 DC전압을 차단하는 콘덴서(C1)(C2)와 증폭기(1)로된 신호입력회로를 레벨검출회로(3)의 각각의 저항(R3)(R4)을 통해 비교증폭기(OP1)(OP2)에 입력되게 한 통상의 회로에 있어서, 상기 레벨검출회로(3)의 비교증폭기(OP1)(OP2) 입력단에, 기준전압의 상한치를 설정하는 제너다이오드(ZD1)와 하한치의 기준전압을 설정하는 제너다이오드(ZD2)가 직렬접속된 클램핑회로(2)와 입력신호를 보호하는 가변용 저항(R8)(R6), 제너다이오드(ZD4)(ZD3)를 각각 연결하고, 상기 비교증폭회로(OP1)(OP2) 출력단을 알람발신장치(5)의 동작 및 정지시키기 위해 낸드회로(NAND1)(NAND2)로된 알람구동회로(4)를 접속한 것을 특징으로 하는 레벨검출회로.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR2019890011947U KR940006503Y1 (ko) | 1989-08-14 | 1989-08-14 | 레벨(level) 검출회로 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR2019890011947U KR940006503Y1 (ko) | 1989-08-14 | 1989-08-14 | 레벨(level) 검출회로 |
Publications (1)
Publication Number | Publication Date |
---|---|
KR940006503Y1 true KR940006503Y1 (ko) | 1994-09-24 |
Family
ID=19295093
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR2019890011947U Expired - Fee Related KR940006503Y1 (ko) | 1989-08-14 | 1989-08-14 | 레벨(level) 검출회로 |
Country Status (1)
Country | Link |
---|---|
KR (1) | KR940006503Y1 (ko) |
-
1989
- 1989-08-14 KR KR2019890011947U patent/KR940006503Y1/ko not_active Expired - Fee Related
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
UA0108 | Application for utility model registration |
Comment text: Application for Utility Model Registration Patent event code: UA01011R08D Patent event date: 19890814 |
|
UG1501 | Laying open of application | ||
UA0201 | Request for examination |
Patent event date: 19911127 Patent event code: UA02012R01D Comment text: Request for Examination of Application Patent event date: 19890814 Patent event code: UA02011R01I Comment text: Application for Utility Model Registration |
|
UE0902 | Notice of grounds for rejection |
Comment text: Notification of reason for refusal Patent event code: UE09021S01D Patent event date: 19940629 |
|
UG1604 | Publication of application |
Patent event code: UG16041S01I Comment text: Decision on Publication of Application Patent event date: 19940830 |
|
UE0701 | Decision of registration |
Patent event date: 19941219 Comment text: Decision to Grant Registration Patent event code: UE07011S01D |
|
UR0701 | Registration of establishment |
Patent event date: 19950311 Patent event code: UR07011E01D Comment text: Registration of Establishment |
|
UR1002 | Payment of registration fee |
Start annual number: 1 End annual number: 3 Payment date: 19950311 |
|
UR1001 | Payment of annual fee |
Payment date: 19970829 Start annual number: 4 End annual number: 4 |
|
UR1001 | Payment of annual fee |
Payment date: 19980827 Start annual number: 5 End annual number: 5 |
|
UR1001 | Payment of annual fee |
Payment date: 19990831 Start annual number: 6 End annual number: 6 |
|
UC1903 | Unpaid annual fee |