JPS562710A - Oscillating unit - Google Patents
Oscillating unitInfo
- Publication number
- JPS562710A JPS562710A JP7873979A JP7873979A JPS562710A JP S562710 A JPS562710 A JP S562710A JP 7873979 A JP7873979 A JP 7873979A JP 7873979 A JP7873979 A JP 7873979A JP S562710 A JPS562710 A JP S562710A
- Authority
- JP
- Japan
- Prior art keywords
- switch
- control
- oscillation
- circuit
- feedback loop
- 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
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03B—GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
- H03B5/00—Generation of oscillations using amplifier with regenerative feedback from output to input
- H03B5/02—Details
Landscapes
- Oscillators With Electromechanical Resonators (AREA)
Abstract
PURPOSE:To make it possible to install a selector switch for oscillation control outside the positive feedback loop, by inserting a control circuit to the positive feedback loop consisting of an amplifier and a frequency selective feedback circuit. CONSTITUTION:Amplifier 1 and frequency selective feedback circuit F form a feedback loop together with a part of control circuit C. Control circuit C uses transistor TR4 for the signal path, and the base and the emitter are used as the input terminal and the output terminal respectively. The collector of controlling TR5 is connected to the emitter of TR4, and the control signal is given to the base of TR5. When the control signal is selected by switch T and the voltage of DC power source 3 is given, the oscillation state is set; and meanwhile, when the control terminal is grounded by switch T, oscillation is stopped. Thus, the control terminal and switch T can be provided outside the loop. Consequently, the positional restrictions of switch T and the consideration of a high frequency can be eliminated.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7873979A JPS562710A (en) | 1979-06-21 | 1979-06-21 | Oscillating unit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7873979A JPS562710A (en) | 1979-06-21 | 1979-06-21 | Oscillating unit |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS562710A true JPS562710A (en) | 1981-01-13 |
JPS6326562B2 JPS6326562B2 (en) | 1988-05-30 |
Family
ID=13670249
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP7873979A Granted JPS562710A (en) | 1979-06-21 | 1979-06-21 | Oscillating unit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS562710A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6077113U (en) * | 1983-10-31 | 1985-05-29 | 株式会社ケンウッド | oscillation circuit |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4892855U (en) * | 1972-02-09 | 1973-11-07 | ||
JPS516835U (en) * | 1974-07-01 | 1976-01-19 |
-
1979
- 1979-06-21 JP JP7873979A patent/JPS562710A/en active Granted
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4892855U (en) * | 1972-02-09 | 1973-11-07 | ||
JPS516835U (en) * | 1974-07-01 | 1976-01-19 |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6077113U (en) * | 1983-10-31 | 1985-05-29 | 株式会社ケンウッド | oscillation circuit |
Also Published As
Publication number | Publication date |
---|---|
JPS6326562B2 (en) | 1988-05-30 |
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