JPS5571319A - Comparator circuit system - Google Patents
Comparator circuit systemInfo
- Publication number
- JPS5571319A JPS5571319A JP14428878A JP14428878A JPS5571319A JP S5571319 A JPS5571319 A JP S5571319A JP 14428878 A JP14428878 A JP 14428878A JP 14428878 A JP14428878 A JP 14428878A JP S5571319 A JPS5571319 A JP S5571319A
- Authority
- JP
- Japan
- Prior art keywords
- voltage
- comparator
- amplifier
- noise level
- threshold voltage
- 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
- G01R19/165—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
- G01R19/16576—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 comparing DC or AC voltage with one threshold
- G01R19/1658—AC voltage or recurrent signals
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Manipulation Of Pulses (AREA)
Abstract
PURPOSE:To determine a threshold voltage according to a noise level to operate a circuit normally by adding a fixed voltage to input signals and giving a time delay to them and using the result as the threshold voltage of a comparator. CONSTITUTION:Signal Vi is amplified by amplifier 11 and is rectified by diode 12 and capacitor 13 to become input signal VI and is inputted to comparator 14 as well as amplifier 15. Amplifier 15 functions so that voltage at non-inversion and inversion inputs may be equal to each other, and the output charges capacitor 19 through resistance 18. This charging voltage is supplied as threshold voltage VS of comparator 14. This VS is held at a voltage obtained by adding a fixed voltage in amplifier 15 to the voltage corresponding to the noise level. If signals larger than the noise level are supplied to comparator 14, they are detected, and output signal VO is led out.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14428878A JPS5571319A (en) | 1978-11-24 | 1978-11-24 | Comparator circuit system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14428878A JPS5571319A (en) | 1978-11-24 | 1978-11-24 | Comparator circuit system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5571319A true JPS5571319A (en) | 1980-05-29 |
Family
ID=15358576
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14428878A Pending JPS5571319A (en) | 1978-11-24 | 1978-11-24 | Comparator circuit system |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5571319A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5030850A (en) * | 1990-02-26 | 1991-07-09 | The United States Of America As Represented By The Department Of Energy | Off-set stabilizer for comparator output |
| US5471167A (en) * | 1993-08-13 | 1995-11-28 | Motorola, Inc. | Circuit for use with a feedback arrangement |
| WO2023026834A1 (en) * | 2021-08-23 | 2023-03-02 | 株式会社村田製作所 | Scalable power supply system |
-
1978
- 1978-11-24 JP JP14428878A patent/JPS5571319A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5030850A (en) * | 1990-02-26 | 1991-07-09 | The United States Of America As Represented By The Department Of Energy | Off-set stabilizer for comparator output |
| US5471167A (en) * | 1993-08-13 | 1995-11-28 | Motorola, Inc. | Circuit for use with a feedback arrangement |
| WO2023026834A1 (en) * | 2021-08-23 | 2023-03-02 | 株式会社村田製作所 | Scalable power supply system |
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