JPS58125876U - Oscillation frequency detection circuit - Google Patents
Oscillation frequency detection circuitInfo
- Publication number
- JPS58125876U JPS58125876U JP2174182U JP2174182U JPS58125876U JP S58125876 U JPS58125876 U JP S58125876U JP 2174182 U JP2174182 U JP 2174182U JP 2174182 U JP2174182 U JP 2174182U JP S58125876 U JPS58125876 U JP S58125876U
- Authority
- JP
- Japan
- Prior art keywords
- detection circuit
- oscillation frequency
- frequency detection
- resistor
- oscillator
- 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.)
- Granted
Links
Landscapes
- Measuring Frequencies, Analyzing Spectra (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
“ 第１図は従来の発振周波数検出回路を示すブロック
回路図、第２図は本考案の発振周波数検出回路の第１実
施例を示すブロック回路図、第３図は第２図のブロック
回路図の各部の波形を示す図、第４図は本考案の発振周
波数検出回路の第２実施例を示すブロック回路図、第５
図は第４図のブロック回路図の各部の波形を示す図であ
る。
なお図面に用いられている符号において、２・・・・・
・Ｖ６Ｏ１３・・・・・・狭帯域バンドパスフィル−タ
、８・・・・・・抵抗、１０，１１．１４・・・・・・
ＡＭ検波器、１２．１３； １５・・・・・・比較器
である。“ Fig. 1 is a block circuit diagram showing a conventional oscillation frequency detection circuit, Fig. 2 is a block circuit diagram showing a first embodiment of the oscillation frequency detection circuit of the present invention, and Fig. 3 is a block circuit diagram of Fig. 2. FIG. 4 is a block circuit diagram showing the second embodiment of the oscillation frequency detection circuit of the present invention, and FIG.
The figure is a diagram showing waveforms of various parts of the block circuit diagram of FIG. 4. In addition, in the symbols used in the drawings, 2...
・V6O13... Narrowband band pass filter, 8... Resistor, 10, 11.14...
AM detector, 12.13; 15... comparator.
Claims (1)
在させた抵抗と、この抵抗の両端における電位差を検出
する手段とを夫々備えていることを特徴とする発振周波
数検出回路。An oscillation frequency detection circuit comprising: a resistor interposed to connect an oscillator and a narrowband bandpass filter; and means for detecting a potential difference across the resistor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2174182U JPS58125876U (en) | 1982-02-18 | 1982-02-18 | Oscillation frequency detection circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2174182U JPS58125876U (en) | 1982-02-18 | 1982-02-18 | Oscillation frequency detection circuit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58125876U true JPS58125876U (en) | 1983-08-26 |
| JPH0328574Y2 JPH0328574Y2 (en) | 1991-06-19 |
Family
ID=30033859
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2174182U Granted JPS58125876U (en) | 1982-02-18 | 1982-02-18 | Oscillation frequency detection circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58125876U (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5439961A (en) * | 1977-07-05 | 1979-03-28 | Biomechanics Ltd | Device for anaerobically digesting biochemically decomposable waste |
-
1982
- 1982-02-18 JP JP2174182U patent/JPS58125876U/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5439961A (en) * | 1977-07-05 | 1979-03-28 | Biomechanics Ltd | Device for anaerobically digesting biochemically decomposable waste |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0328574Y2 (en) | 1991-06-19 |
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