JPS5471667A - Frequency-voltage converter - Google Patents
Frequency-voltage converterInfo
- Publication number
- JPS5471667A JPS5471667A JP13830777A JP13830777A JPS5471667A JP S5471667 A JPS5471667 A JP S5471667A JP 13830777 A JP13830777 A JP 13830777A JP 13830777 A JP13830777 A JP 13830777A JP S5471667 A JPS5471667 A JP S5471667A
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- period
- amplifier
- reset period
- 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
Landscapes
- Manipulation Of Pulses (AREA)
- Measurement Of Current Or Voltage (AREA)
Abstract
PURPOSE: To generate the voltage corresponding to the input signal frequency free from effect of ripples, etc. by correcting the voltage corresponding to the specified reset period of an integrating circuit with an addition amplifier and performing integration according to signal period.
CONSTITUTION: A constant pulse generator 1 outputs the pulse of a short width according to the rise of input pulses and resets an integrating circuit 3 at the specified period. Then, when the voltage corresponding to the reset period of the circuit 3 of an addition amplifier 10 is integrated by the circuit 3 and becomes higher than a specified level, a switch 6 is closed via AND circuit 5 by the detection output of a threshold value detector 4 and the integrated voltage having been corrected of the reset period through the amplifier in the period excluding the reset period of the circuit 3 is applied from the circuit 3 to a mean value amplifier 2, thus the voltage having been converted in correspondence to the input frequency without effect of ripples, etc. may be generated.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13830777A JPS5471667A (en) | 1977-11-17 | 1977-11-17 | Frequency-voltage converter |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13830777A JPS5471667A (en) | 1977-11-17 | 1977-11-17 | Frequency-voltage converter |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5471667A true JPS5471667A (en) | 1979-06-08 |
Family
ID=15218806
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP13830777A Pending JPS5471667A (en) | 1977-11-17 | 1977-11-17 | Frequency-voltage converter |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5471667A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH01260345A (en) * | 1988-04-12 | 1989-10-17 | Hitachi Electron Eng Co Ltd | Fine particle measuring apparatus for laser |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4880074A (en) * | 1972-01-31 | 1973-10-26 |
-
1977
- 1977-11-17 JP JP13830777A patent/JPS5471667A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4880074A (en) * | 1972-01-31 | 1973-10-26 |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH01260345A (en) * | 1988-04-12 | 1989-10-17 | Hitachi Electron Eng Co Ltd | Fine particle measuring apparatus for laser |
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