GB1380505A - Peak detector circuit - Google Patents
Peak detector circuitInfo
- Publication number
- GB1380505A GB1380505A GB1307672A GB1307672A GB1380505A GB 1380505 A GB1380505 A GB 1380505A GB 1307672 A GB1307672 A GB 1307672A GB 1307672 A GB1307672 A GB 1307672A GB 1380505 A GB1380505 A GB 1380505A
- Authority
- GB
- United Kingdom
- Prior art keywords
- signal
- gate
- peak
- voltage
- input
- 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
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
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measurement Of Current Or Voltage (AREA)
Abstract
1380505 Detecting signal peaks RCA CORPORATION 21 March 1972 [29 March 1971] 13076/72 Heading H3T A circuit for detecting the peak of a signal comprises two transistors Q 1 , Q 2 having a common source impedance 13, a D.C. path from a signal input terminal to the gate of Q 2 and a path from the terminal to the gate of Q 1 which provides a voltage representative of the signal peak value whereby current in Q 2 follows the input-signal until Q 2 is cut-off. As described, the values of resistors 13 and 15 are so chosen that the source voltage of Q 2 does not follow its gate voltage and the current in Q 2 therefore follows the input signal until the gate voltage of Q 2 rises above the peak representing voltage stored on capacitor 20. This is below the peak signal level by the small voltage drop in a lightly conducting diode 11 so that Q 2 cuts off near the signal peak and provides an output via Q 3 . In Fig. 1 (not shown) transistor Q 1 has its gate and drain shorted together.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US12870271A | 1971-03-29 | 1971-03-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1380505A true GB1380505A (en) | 1975-01-15 |
Family
ID=22436557
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1307672A Expired GB1380505A (en) | 1971-03-29 | 1972-03-21 | Peak detector circuit |
Country Status (5)
| Country | Link |
|---|---|
| CA (1) | CA961556A (en) |
| CH (1) | CH557032A (en) |
| DE (1) | DE2213200A1 (en) |
| FR (1) | FR2132208A1 (en) |
| GB (1) | GB1380505A (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3914888A1 (en) * | 1989-05-05 | 1990-11-15 | Texas Instruments Deutschland | CIRCUIT ARRANGEMENT FOR GENERATING A CONTROL SIGNAL DEPENDING ON THE APPEARANCE OF AN EXTREME VALUE OF A SINE VIBRATION AND APPLICATION OF SUCH A CIRCUIT ARRANGEMENT |
| FR2871002B1 (en) * | 2004-05-27 | 2006-07-14 | Insa De Lyon | AUTOMATIC SELF-POWERED ELECTRONIC SWITCH BY DETECTING MAXIMUMS OR MINIMUMS OF POTENTIAL DIFFERENCE BETWEEN ITS POWER ELECTRODES |
| DE102017206101A1 (en) * | 2017-04-10 | 2018-10-11 | BSH Hausgeräte GmbH | Switching arrangement for measuring a mains voltage |
-
1972
- 1972-03-13 CA CA137,000A patent/CA961556A/en not_active Expired
- 1972-03-17 DE DE19722213200 patent/DE2213200A1/en active Pending
- 1972-03-21 GB GB1307672A patent/GB1380505A/en not_active Expired
- 1972-03-22 CH CH429372A patent/CH557032A/en not_active IP Right Cessation
- 1972-03-29 FR FR7211109A patent/FR2132208A1/fr not_active Withdrawn
Also Published As
| Publication number | Publication date |
|---|---|
| CH557032A (en) | 1974-12-13 |
| CA961556A (en) | 1975-01-21 |
| FR2132208A1 (en) | 1972-11-17 |
| DE2213200A1 (en) | 1972-10-05 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PLNP | Patent lapsed through nonpayment of renewal fees |