JPS59161712U - oscillation circuit - Google Patents
oscillation circuitInfo
- Publication number
- JPS59161712U JPS59161712U JP1983055615U JP5561583U JPS59161712U JP S59161712 U JPS59161712 U JP S59161712U JP 1983055615 U JP1983055615 U JP 1983055615U JP 5561583 U JP5561583 U JP 5561583U JP S59161712 U JPS59161712 U JP S59161712U
- Authority
- JP
- Japan
- Prior art keywords
- collector
- transistor
- power supply
- dividing resistor
- oscillation
- 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
- Inductance-Capacitance Distribution Constants And Capacitance-Resistance Oscillators (AREA)
- Transceivers (AREA)
- Mobile Radio Communication Systems (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図は従来の発振回路を用いた無線電話機の回路図、
第２図は本考案の発振回路図、第３図は本考案の発振回
路を用いた無線電話機の回路図である。
１０・・・トランジスタ、１５・・・帰還ループ、１６
゜１７・・・分割抵抗、２０・・・ダイオード。Figure 1 is a circuit diagram of a wireless telephone using a conventional oscillation circuit.
FIG. 2 is an oscillation circuit diagram of the present invention, and FIG. 3 is a circuit diagram of a wireless telephone using the oscillation circuit of the present invention. 10...Transistor, 15...Feedback loop, 16
゜17...Divided resistor, 20...Diode.
Claims (1)
介してベースに正帰還し発振を行うものニオいて、前記
トランジスタのコレクタと電源回路間に発振信号を取出
すための分割抵抗を接続し、前記分割抵抗のうちコレク
タ側にある分割抵抗に並列にダイオードを接続し、電源
電圧が変動しても前記ベースに正帰還される信号の大き
さを適正に保つことを特徴とする発振回路。The output signal from the collector of the transistor is positively fed back to the base via a feedback loop to generate oscillation, and a dividing resistor is connected between the collector of the transistor and the power supply circuit to take out the oscillation signal, and the dividing resistor is connected between the collector of the transistor and the power supply circuit. An oscillation circuit characterized in that a diode is connected in parallel to a dividing resistor on the collector side of the circuit to maintain an appropriate magnitude of a signal positively fed back to the base even if the power supply voltage fluctuates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1983055615U JPS59161712U (en) | 1983-04-13 | 1983-04-13 | oscillation circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1983055615U JPS59161712U (en) | 1983-04-13 | 1983-04-13 | oscillation circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS59161712U true JPS59161712U (en) | 1984-10-30 |
Family
ID=30185943
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1983055615U Pending JPS59161712U (en) | 1983-04-13 | 1983-04-13 | oscillation circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59161712U (en) |
-
1983
- 1983-04-13 JP JP1983055615U patent/JPS59161712U/en active Pending
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