FR2300465A1 - A-D converter has input integrator feeding comparator - and counter measuring time between end of switched input and point when given level is reached - Google Patents
A-D converter has input integrator feeding comparator - and counter measuring time between end of switched input and point when given level is reachedInfo
- Publication number
- FR2300465A1 FR2300465A1 FR7603156A FR7603156A FR2300465A1 FR 2300465 A1 FR2300465 A1 FR 2300465A1 FR 7603156 A FR7603156 A FR 7603156A FR 7603156 A FR7603156 A FR 7603156A FR 2300465 A1 FR2300465 A1 FR 2300465A1
- Authority
- FR
- France
- Prior art keywords
- integrator
- input
- given level
- converter
- point
- 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.)
- Withdrawn
Links
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
- H03M1/00—Analogue/digital conversion; Digital/analogue conversion
- H03M1/12—Analogue/digital converters
- H03M1/50—Analogue/digital converters with intermediate conversion to time interval
- H03M1/52—Input signal integrated with linear return to datum
Landscapes
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Analogue/Digital Conversion (AREA)
Abstract
The A/D converter has the analog input signal (Vx) applied to the non-inverting input of an operational amplifier integrator (11) during a first time interval, and a reference voltage (VR) applied to the inverting input during a second interval. A comparator (23), coupled to the output of the integrator, determines when the integrator output during the second time interval reaches a given level. A logic and counter circuit responds to the comparator output and measures the time between the start of the second time interval and the time point when the integrator output reaches the given level.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US54808375A | 1975-02-07 | 1975-02-07 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR2300465A1 true FR2300465A1 (en) | 1976-09-03 |
Family
ID=24187328
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7603156A Withdrawn FR2300465A1 (en) | 1975-02-07 | 1976-02-05 | A-D converter has input integrator feeding comparator - and counter measuring time between end of switched input and point when given level is reached |
Country Status (3)
Country | Link |
---|---|
JP (1) | JPS5194751A (en) |
DE (1) | DE2557745A1 (en) |
FR (1) | FR2300465A1 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS54121655A (en) * | 1978-03-14 | 1979-09-20 | Sharp Corp | Analog-digital converter |
CN113141163B (en) * | 2020-01-19 | 2023-11-17 | 晶豪科技股份有限公司 | Class D power amplifier circuit |
-
1975
- 1975-11-13 JP JP50136787A patent/JPS5194751A/ja active Pending
- 1975-12-20 DE DE19752557745 patent/DE2557745A1/en active Pending
-
1976
- 1976-02-05 FR FR7603156A patent/FR2300465A1/en not_active Withdrawn
Also Published As
Publication number | Publication date |
---|---|
DE2557745A1 (en) | 1976-08-19 |
JPS5194751A (en) | 1976-08-19 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |