JPS55163902A - Backup system of oscillating circuit - Google Patents
Backup system of oscillating circuitInfo
- Publication number
- JPS55163902A JPS55163902A JP7123579A JP7123579A JPS55163902A JP S55163902 A JPS55163902 A JP S55163902A JP 7123579 A JP7123579 A JP 7123579A JP 7123579 A JP7123579 A JP 7123579A JP S55163902 A JPS55163902 A JP S55163902A
- Authority
- JP
- Japan
- Prior art keywords
- inverter
- oscillating circuit
- input
- vibrator
- stopping
- 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
- 239000013078 crystal Substances 0.000 abstract 1
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03L—AUTOMATIC CONTROL, STARTING, SYNCHRONISATION OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
- H03L5/00—Automatic control of voltage, current, or power
Landscapes
- Electric Clocks (AREA)
- Electromechanical Clocks (AREA)
- Oscillators With Electromechanical Resonators (AREA)
Abstract
PURPOSE:To prevent an oscillating circuit in heavy load drive from stopping without reference to input capacity by maintaining the operation of the oscillating circuit by increasing the number of stages of amplifiers when an electric power voltage lowers. CONSTITUTION:When control signal CL increases in potential, electronic switches 19 and 20 are OFF and ON respectively and inverters 17 and 18 are built in the oscillating circuit composed of crystal vibrator 13, inverter 8, etc. Therefore, even if the value of input capacity 11 is large and the input amplitude of inverter 8 is small so that a sufficient current can not be led out from its output terminal, the output voltage of inverter 8 is amplituded more than the input amplitude and further amplified by inverter 17, thereby applying inverter 18 at its input terminal with a sufficiently-large signal. Consequently, the sufficiently-large current can be led out from the output terminal 18 to supply vibrator 13 with the enough driving current to maintain vibrations of vibrator 13. Then, the oscillating circuit can securely be prevented from stopping in heavy load drive.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7123579A JPS55163902A (en) | 1979-06-08 | 1979-06-08 | Backup system of oscillating circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7123579A JPS55163902A (en) | 1979-06-08 | 1979-06-08 | Backup system of oscillating circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS55163902A true JPS55163902A (en) | 1980-12-20 |
Family
ID=13454824
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7123579A Pending JPS55163902A (en) | 1979-06-08 | 1979-06-08 | Backup system of oscillating circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS55163902A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57189086A (en) * | 1981-05-18 | 1982-11-20 | Seiko Epson Corp | Circuit for electronic timepiece |
| JPS58125890U (en) * | 1982-02-18 | 1983-08-26 | リズム時計工業株式会社 | Watch rush current prevention circuit |
| JPS58220505A (en) * | 1982-06-16 | 1983-12-22 | Seiko Epson Corp | Complimentary metal-oxide-semiconductor oscillating circuit |
| KR100348002B1 (en) * | 1992-10-16 | 2002-11-25 | 내셔널 세미콘덕터 코포레이션 | Switchable Compensation Improves Oscillator Performance |
-
1979
- 1979-06-08 JP JP7123579A patent/JPS55163902A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57189086A (en) * | 1981-05-18 | 1982-11-20 | Seiko Epson Corp | Circuit for electronic timepiece |
| JPS58125890U (en) * | 1982-02-18 | 1983-08-26 | リズム時計工業株式会社 | Watch rush current prevention circuit |
| JPS58220505A (en) * | 1982-06-16 | 1983-12-22 | Seiko Epson Corp | Complimentary metal-oxide-semiconductor oscillating circuit |
| KR100348002B1 (en) * | 1992-10-16 | 2002-11-25 | 내셔널 세미콘덕터 코포레이션 | Switchable Compensation Improves Oscillator Performance |
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