JPS55136965A - Ferroresonance type frequency converter - Google Patents
Ferroresonance type frequency converterInfo
- Publication number
- JPS55136965A JPS55136965A JP4511679A JP4511679A JPS55136965A JP S55136965 A JPS55136965 A JP S55136965A JP 4511679 A JP4511679 A JP 4511679A JP 4511679 A JP4511679 A JP 4511679A JP S55136965 A JPS55136965 A JP S55136965A
- Authority
- JP
- Japan
- Prior art keywords
- voltage
- ferroresonance
- frequency
- transformer
- fundamental wave
- 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
- Measuring Frequencies, Analyzing Spectra (AREA)
Abstract
PURPOSE: To increase frequency conversion precision by a method wherein a fundamental wave filter is connected to the output side of a ferroresonance type transformer in which the input voltage whose frequency is to be measured is impressed on its input side, and the relationship between frequency and voltage is made so that it can be expressed by a linear equation.
CONSTITUTION: AC voltage, whose frequency is to be measured, is applied to the input terminal a of ferroresonance type transformer circuit 1, and this AC voltage is impressed on ferroresonance type transformer T1. Fundamental wave filter 2 is connected to the output winding of this transformer T1, and thereby the spike which is to become noise produced in the output of transformer T1 is removed, and only the fundamental wave is taken out. The fundamental wave taken out in this way is rectified by full wave rectifying circuit 3, and thereby a voltage proportional to the frequency of the input is produced. The relationship between this voltage V and frequency f is expressed by the linear equation f=kv/2πBmax, where k is a constant determined by the circuit connection, and Bmax is the maximum saturation magnetic flux density of transformer T1.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4511679A JPS55136965A (en) | 1979-04-13 | 1979-04-13 | Ferroresonance type frequency converter |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4511679A JPS55136965A (en) | 1979-04-13 | 1979-04-13 | Ferroresonance type frequency converter |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS55136965A true JPS55136965A (en) | 1980-10-25 |
Family
ID=12710288
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP4511679A Pending JPS55136965A (en) | 1979-04-13 | 1979-04-13 | Ferroresonance type frequency converter |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55136965A (en) |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS3825252Y1 (en) * | 1959-03-24 | 1963-11-22 |
-
1979
- 1979-04-13 JP JP4511679A patent/JPS55136965A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS3825252Y1 (en) * | 1959-03-24 | 1963-11-22 |
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