JPS6041891U - cycle alarm - Google Patents
cycle alarmInfo
- Publication number
- JPS6041891U JPS6041891U JP13380183U JP13380183U JPS6041891U JP S6041891 U JPS6041891 U JP S6041891U JP 13380183 U JP13380183 U JP 13380183U JP 13380183 U JP13380183 U JP 13380183U JP S6041891 U JPS6041891 U JP S6041891U
- Authority
- JP
- Japan
- Prior art keywords
- oscillation
- integrated circuit
- collector
- clock
- resistor
- 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
- Electric Clocks (AREA)
- Measurement Of Predetermined Time Intervals (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−図は従来例を示す回路図、第2図は本考案の実施
例を示す回路図である。
1・・・電源、3・・・クロック用集積回路、4・・・
外付は発振回路部、8・・・メロディ−発生用集積回路
、9.15・・・トランジスタ、10・・・スピーカー
、11〜13・・・抵L14・・・コンデンサ。FIG. 1 is a circuit diagram showing a conventional example, and FIG. 2 is a circuit diagram showing an embodiment of the present invention. 1...Power supply, 3...Clock integrated circuit, 4...
External components include an oscillation circuit section, 8... integrated circuit for melody generation, 9.15... transistor, 10... speaker, 11-13... resistor L14... capacitor.
Claims (1)
を利用したサイクルアラームに於て、前記集積回路の発
振入力端子にはコレクタを負荷抵抗を介して前記直流電
源の正極側に接続されると共にエミッタを接地されるス
イッチング用のトランジスタのベースを入力抵抗を介し
て接続すると共に、前記集積回路の発振出力端子には前
記スイッチング用トランジスタのコレクタとの間にコン
デンサを接続し、更に前記発振入力端子及び発振出力端
子間に可変抵抗を接続することにより、クロック発振周
波数を任意に調整可能となしアラーム時間の間隔を調節
出来る様にしたことを特徴とするサイクルアラーム。In a cycle alarm using an integrated circuit that oscillates a clock by connecting an external vibrator, a collector is connected to the oscillation input terminal of the integrated circuit through a load resistor to the positive pole side of the DC power supply. The base of a switching transistor whose emitter is grounded is connected via an input resistor, a capacitor is connected between the oscillation output terminal of the integrated circuit and the collector of the switching transistor, and the oscillation input terminal and a variable resistor between the oscillation output terminals, whereby the clock oscillation frequency can be arbitrarily adjusted and the alarm time interval can be adjusted.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13380183U JPS6041891U (en) | 1983-08-30 | 1983-08-30 | cycle alarm |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13380183U JPS6041891U (en) | 1983-08-30 | 1983-08-30 | cycle alarm |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6041891U true JPS6041891U (en) | 1985-03-25 |
Family
ID=30301693
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP13380183U Pending JPS6041891U (en) | 1983-08-30 | 1983-08-30 | cycle alarm |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6041891U (en) |
-
1983
- 1983-08-30 JP JP13380183U patent/JPS6041891U/en active Pending
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JPS6041891U (en) | cycle alarm | |
JPS59161711U (en) | oscillator | |
JPS6050514U (en) | oscillation circuit | |
JPS59161712U (en) | oscillation circuit | |
JPS60176499U (en) | Resonance effect generator | |
JPS59180528U (en) | Clock oscillator | |
JPS6039127U (en) | power circuit | |
JPS6032817U (en) | oscillation circuit | |
JPS6068598U (en) | Piezoelectric buzzer drive circuit | |
JPS6034690U (en) | alarm device | |
JPS5885829U (en) | oscillation circuit | |
JPS58109313U (en) | oscillation circuit | |
JPS6118637U (en) | timer circuit device | |
JPS6076293U (en) | cycle alarm timer | |
JPS5988738U (en) | Microcomputer clock signal generation circuit | |
JPS5992535U (en) | power circuit device | |
JPS60172434U (en) | Malfunction prevention circuit at startup | |
JPS604965U (en) | Test circuit for integrated circuits | |
JPS6261521U (en) | ||
JPS6133513U (en) | oscillation circuit | |
JPS6119299U (en) | audio equipment | |
JPS5929841U (en) | frequency synthesizer tuner | |
JPS6193013U (en) | ||
JPS59144932U (en) | Blocking oscillation circuit | |
JPS6027539U (en) | CVCF commercial synchronous circuit by UJT |