JPS5722568A - Fast peak detection circuit - Google Patents
Fast peak detection circuitInfo
- Publication number
- JPS5722568A JPS5722568A JP9798780A JP9798780A JPS5722568A JP S5722568 A JPS5722568 A JP S5722568A JP 9798780 A JP9798780 A JP 9798780A JP 9798780 A JP9798780 A JP 9798780A JP S5722568 A JPS5722568 A JP S5722568A
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- input
- signal
- value
- detection circuit
- 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.)
- Pending
Links
Classifications
-
- 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
- G01R19/04—Measuring peak values or amplitude or envelope of ac or of pulses
Abstract
PURPOSE:To detect the peak value of an input signal fast at a high accuracy by sampling hold of the signal each time it reaches maximum thereof so that it can be detected at each half cycle. CONSTITUTION:After converted to an absolute value with an absolute value circuit 11, a sine wave signal is applied to a positive peak detection circuit 12 and charges a capacitor C1 through an operatonal amplifier OP1. As soon as the input passes the maximum value thereof, the output of the amplifier OP1 falls suddenly to control a sampling hold circuit 17 through a one shot multivibrator 15 so that the charge voltage is sample held corresponding to the input maximum value of the capacitor C1. On the other hand, the output of the multivibrator 15 closes a switch SW2 to reset a negative peak detection circuit 13. Likewise, the circuit 12 is reset in response to the derection of a negative peak through the circuit 13. This enables fast and highly accurate detection of the peak value of input cycle signal without delay at each half cycle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9798780A JPS5722568A (en) | 1980-07-17 | 1980-07-17 | Fast peak detection circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9798780A JPS5722568A (en) | 1980-07-17 | 1980-07-17 | Fast peak detection circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5722568A true JPS5722568A (en) | 1982-02-05 |
Family
ID=14207013
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9798780A Pending JPS5722568A (en) | 1980-07-17 | 1980-07-17 | Fast peak detection circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5722568A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS603066A (en) * | 1983-06-18 | 1985-01-09 | Sankyo Seiki Mfg Co Ltd | Recognizing device of magnetic ink character |
| JPS6220380U (en) * | 1985-07-22 | 1987-02-06 | ||
| JPH0374881U (en) * | 1989-11-27 | 1991-07-26 | ||
| KR100813462B1 (en) | 2006-09-11 | 2008-03-13 | (주)에프씨아이 | Peak detector |
| CN112881784A (en) * | 2019-11-29 | 2021-06-01 | 深圳市帝迈生物技术有限公司 | Peak detector and blood coagulation analyzer |
-
1980
- 1980-07-17 JP JP9798780A patent/JPS5722568A/en active Pending
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS603066A (en) * | 1983-06-18 | 1985-01-09 | Sankyo Seiki Mfg Co Ltd | Recognizing device of magnetic ink character |
| JPH0347552B2 (en) * | 1983-06-18 | 1991-07-19 | Sankyo Seiki Seisakusho Kk | |
| JPS6220380U (en) * | 1985-07-22 | 1987-02-06 | ||
| JPH0434457Y2 (en) * | 1985-07-22 | 1992-08-17 | ||
| JPH0374881U (en) * | 1989-11-27 | 1991-07-26 | ||
| KR100813462B1 (en) | 2006-09-11 | 2008-03-13 | (주)에프씨아이 | Peak detector |
| WO2008032940A1 (en) * | 2006-09-11 | 2008-03-20 | Fci Inc. | Peak detector |
| US7898300B2 (en) | 2006-09-11 | 2011-03-01 | Fci Inc. | Peak detector |
| CN112881784A (en) * | 2019-11-29 | 2021-06-01 | 深圳市帝迈生物技术有限公司 | Peak detector and blood coagulation analyzer |
| CN112881784B (en) * | 2019-11-29 | 2022-09-02 | 深圳市帝迈生物技术有限公司 | Peak detector and blood coagulation analyzer |
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