JPS648840U - - Google Patents
Info
- Publication number
- JPS648840U JPS648840U JP10284687U JP10284687U JPS648840U JP S648840 U JPS648840 U JP S648840U JP 10284687 U JP10284687 U JP 10284687U JP 10284687 U JP10284687 U JP 10284687U JP S648840 U JPS648840 U JP S648840U
- Authority
- JP
- Japan
- Prior art keywords
- timer
- voltage source
- operating time
- time setting
- setting 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
- 239000003990 capacitor Substances 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 6
- 230000005540 biological transmission Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
Landscapes
- Electronic Switches (AREA)
- Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
Description
第１図は本考案の一実施例によるタイマＩＣの
動作時間設定回路の原理図、第２図は本実施例の
タイマＩＣの波形図、第３図は本考案のタイマＩ
Ｃ設定回路を超音波センサに適用した場合のブロ
ツク図、第４図はその各部の動作を示すタイムチ
ヤート、第５図は従来のタイマＩＣの動作時間設
定回路を示す図、第６図はその各部の波形を示す
波形図である。
１……タイマＩＣ、２……可変電圧源、１０…
…送波ゲート回路、１２……抑圧ゲート回路、１
３……検知ゲート発生回路、１５……受波回路、
１６……比較器、１７……フリツプフロツプ、１
８……ボルテージフオロワ。
Fig. 1 is a principle diagram of an operating time setting circuit of a timer IC according to an embodiment of the present invention, Fig. 2 is a waveform diagram of the timer IC of this embodiment, and Fig. 3 is a diagram of the timer IC of the present invention.
A block diagram when the C setting circuit is applied to an ultrasonic sensor, Fig. 4 is a time chart showing the operation of each part, Fig. 5 is a diagram showing the operating time setting circuit of a conventional timer IC, and Fig. 6 is its time chart. FIG. 3 is a waveform diagram showing waveforms at various parts. 1...Timer IC, 2...Variable voltage source, 10...
...Transmission gate circuit, 12...Suppression gate circuit, 1
3...Detection gate generation circuit, 15...Receiving circuit,
16...Comparator, 17...Flip-flop, 1
8...Voltage follower.
Claims (1)
点をタイマＩＣのタイミング回路に接続するタイ
マＩＣの動作時間設定回路であつて、 前記電圧源は電圧可変型電圧源であることを特
徴とするタイマＩＣの動作時間設定回路。[Claims for Utility Model Registration] An operating time setting circuit for a timer IC in which a resistor and a capacitor are connected to a voltage source and a midpoint thereof is connected to a timing circuit of the timer IC, wherein the voltage source is a variable voltage type voltage source. An operating time setting circuit for a timer IC, characterized in that:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987102846U JPH0753309Y2 (en) | 1987-07-03 | 1987-07-03 | Timer IC operating time setting circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987102846U JPH0753309Y2 (en) | 1987-07-03 | 1987-07-03 | Timer IC operating time setting circuit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS648840U true JPS648840U (en) | 1989-01-18 |
| JPH0753309Y2 JPH0753309Y2 (en) | 1995-12-06 |
Family
ID=31333132
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987102846U Expired - Lifetime JPH0753309Y2 (en) | 1987-07-03 | 1987-07-03 | Timer IC operating time setting circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0753309Y2 (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5819540U (en) * | 1981-07-29 | 1983-02-07 | パイオニア株式会社 | timed circuit |
-
1987
- 1987-07-03 JP JP1987102846U patent/JPH0753309Y2/en not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5819540U (en) * | 1981-07-29 | 1983-02-07 | パイオニア株式会社 | timed circuit |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0753309Y2 (en) | 1995-12-06 |
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