JPS6344167U - - Google Patents
Info
- Publication number
- JPS6344167U JPS6344167U JP13665086U JP13665086U JPS6344167U JP S6344167 U JPS6344167 U JP S6344167U JP 13665086 U JP13665086 U JP 13665086U JP 13665086 U JP13665086 U JP 13665086U JP S6344167 U JPS6344167 U JP S6344167U
- Authority
- JP
- Japan
- Prior art keywords
- input signal
- level
- frequency
- circuit
- filter circuit
- 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
- 238000001514 detection method Methods 0.000 claims description 5
- 230000035945 sensitivity Effects 0.000 claims description 3
- 239000003990 capacitor Substances 0.000 claims description 2
- 238000013459 approach Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
Description
第１図は本考案の一実施例としてのＭＰＵセン
サを用いた車速の検出装置を示す回路図、第２図
は第１図装置による検出感度対周波数特性を示す
グラフ、第３図は従来装置の一例を示す回路図、
第４図は第３図装置による検出感度対周波数特性
を示すグラフ、である。
（符号の説明）、３…フイルタ回路、５…比較
回路、７…インピーダンス回路、Ｃ３…キヤパシ
タ。
Fig. 1 is a circuit diagram showing a vehicle speed detection device using an MPU sensor as an embodiment of the present invention, Fig. 2 is a graph showing detection sensitivity versus frequency characteristics of the device shown in Fig. 1, and Fig. 3 is a conventional device. A circuit diagram showing an example of
FIG. 4 is a graph showing the detection sensitivity versus frequency characteristic of the device shown in FIG. 3. (Explanation of symbols), 3... Filter circuit, 5... Comparison circuit, 7... Impedance circuit, C3... Capacitor.
Claims (1)
するフイルタ回路と、 該フイルタ回路を通過した該入力信号のレベル
を基準レベルと比較し、該比較に基づき該入力信
号の周波数に対応したパルス信号を出力する比較
回路と、 少くともキヤパシタを含み、該比較回路の出力
端と該入力信号用の入力端との間に介在されたイ
ンピーダンス回路とを具備し、 所定の周波数領域において検出感度が該入力信
号電圧の最小値に近づくように該インピーダンス
回路のキヤパシタが選定されている周波数検出装
置。[Claims for Utility Model Registration] A filter circuit that removes noise components superimposed on an AC input signal, a level of the input signal that has passed through the filter circuit is compared with a reference level, and based on the comparison, the level of the input signal is a comparator circuit that outputs a pulse signal corresponding to a frequency of A frequency detection device, wherein a capacitor of the impedance circuit is selected so that detection sensitivity approaches a minimum value of the input signal voltage in the frequency domain.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1986136650U JP2532229Y2 (en) | 1986-09-08 | 1986-09-08 | Frequency detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1986136650U JP2532229Y2 (en) | 1986-09-08 | 1986-09-08 | Frequency detector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6344167U true JPS6344167U (en) | 1988-03-24 |
| JP2532229Y2 JP2532229Y2 (en) | 1997-04-09 |
Family
ID=31039967
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1986136650U Expired - Lifetime JP2532229Y2 (en) | 1986-09-08 | 1986-09-08 | Frequency detector |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2532229Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2016092963A (en) * | 2014-11-04 | 2016-05-23 | 三菱電機株式会社 | Individual operation detection device, controller for individual operation detection, and decentralized power supply device |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5419969A (en) * | 1977-07-15 | 1979-02-15 | Yoshitomi Pharmaceut Ind Ltd | Proline derivative and its preparation |
| JPS59614A (en) * | 1982-06-28 | 1984-01-05 | Nippon Denso Co Ltd | Reference signal waveform shaping circuit device |
-
1986
- 1986-09-08 JP JP1986136650U patent/JP2532229Y2/en not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5419969A (en) * | 1977-07-15 | 1979-02-15 | Yoshitomi Pharmaceut Ind Ltd | Proline derivative and its preparation |
| JPS59614A (en) * | 1982-06-28 | 1984-01-05 | Nippon Denso Co Ltd | Reference signal waveform shaping circuit device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2016092963A (en) * | 2014-11-04 | 2016-05-23 | 三菱電機株式会社 | Individual operation detection device, controller for individual operation detection, and decentralized power supply device |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2532229Y2 (en) | 1997-04-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPH01148836U (en) | ||
| JPS6344167U (en) | ||
| JPH045737U (en) | ||
| JPS6378278U (en) | ||
| JPH0268519U (en) | ||
| JPS6242377U (en) | ||
| JPS59195566U (en) | speed detection device | |
| JPS5812884U (en) | Human body detection device | |
| JPS6438023U (en) | ||
| JPS5834438U (en) | Waveform shaping circuit | |
| JPS59132251U (en) | signal detection circuit | |
| JPH0292239U (en) | ||
| JPS60222775A (en) | Rotation detector for diesel engine | |
| JPS63187160U (en) | ||
| JPS6428026U (en) | ||
| JPH0334345U (en) | ||
| JPH02139495U (en) | ||
| JPH025074U (en) | ||
| JPS60118970U (en) | Pulse monitor circuit | |
| JPH01104859U (en) | ||
| JPS63147031U (en) | ||
| JPS588247U (en) | vehicle radio receiver | |
| JPH0380505U (en) | ||
| JPS6015663U (en) | Rotation speed detection circuit | |
| JPS63117170U (en) |