JPS5823429U - oscillator - Google Patents
oscillatorInfo
- Publication number
- JPS5823429U JPS5823429U JP11437881U JP11437881U JPS5823429U JP S5823429 U JPS5823429 U JP S5823429U JP 11437881 U JP11437881 U JP 11437881U JP 11437881 U JP11437881 U JP 11437881U JP S5823429 U JPS5823429 U JP S5823429U
- Authority
- JP
- Japan
- Prior art keywords
- oscillator
- reference voltage
- time constant
- capacitor
- 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
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) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図は比較器を用いて構成した従来の発振器の回路図
、第２図は本考案の一実施例の回路図である。
１・・・・・・比較器、３・・・・・・時定数回路を構
成する抵抗、４・・・・・・時定数回路を構成するコン
デンサ、１０・・・・・・圧電ブザー、９．１２および
１６・・・・・・トランジスタ、１４および１７・・・
・・・制御回路。FIG. 1 is a circuit diagram of a conventional oscillator constructed using a comparator, and FIG. 2 is a circuit diagram of an embodiment of the present invention. 1... Comparator, 3... Resistor forming a time constant circuit, 4... Capacitor forming a time constant circuit, 10... Piezoelectric buzzer, 9.12 and 16...transistor, 14 and 17...
...Control circuit.
Claims (1)
数回路のコンデンサの電圧が印加されかつ非反転入力端
子に基準電圧が印加されるとともに前記時定数回路の充
放電が出力電圧に依存するように構成された比較器から
なる発振器において、前記非反転入力端子へ前記基準電
圧を与える第２の抵抗に並列に第３の抵抗とダイオード
との直列回路を接続し、前記ダイオードのオン・オフを
選択的に制御する制御手段を設け、該制御手段による前
記ダイオードのオン・オフにより前記基準電圧を切替え
ることを特徴とする発振器。A voltage across a capacitor of a time constant circuit including a first resistor and a capacitor is applied to the inverting input terminal, and a reference voltage is applied to the non-inverting input terminal, so that charging and discharging of the time constant circuit depends on the output voltage. In the oscillator consisting of a comparator configured as shown in FIG. An oscillator comprising a control means for selectively controlling the reference voltage, the reference voltage being switched by turning on and off the diode by the control means.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11437881U JPS5823429U (en) | 1981-08-03 | 1981-08-03 | oscillator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11437881U JPS5823429U (en) | 1981-08-03 | 1981-08-03 | oscillator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5823429U true JPS5823429U (en) | 1983-02-14 |
Family
ID=29908655
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11437881U Pending JPS5823429U (en) | 1981-08-03 | 1981-08-03 | oscillator |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5823429U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62113946U (en) * | 1986-01-06 | 1987-07-20 |
-
1981
- 1981-08-03 JP JP11437881U patent/JPS5823429U/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62113946U (en) * | 1986-01-06 | 1987-07-20 |
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