JPS6447105A - Oscillation circuit for miniaturized electronic equipment - Google Patents
Oscillation circuit for miniaturized electronic equipmentInfo
- Publication number
- JPS6447105A JPS6447105A JP62203199A JP20319987A JPS6447105A JP S6447105 A JPS6447105 A JP S6447105A JP 62203199 A JP62203199 A JP 62203199A JP 20319987 A JP20319987 A JP 20319987A JP S6447105 A JPS6447105 A JP S6447105A
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- oscillation
- threshold voltage
- voltage
- oscillation circuit
- 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)
- Electromechanical Clocks (AREA)
- Oscillators With Electromechanical Resonators (AREA)
Abstract
PURPOSE:To keep the oscillation over a long period by operating a 1st oscillation circuit having a high threshold voltage and low power consumption when a solar battery generates power and activating a 2nd oscillation circuit with a low threshold voltage when no power is generated. CONSTITUTION:When an output voltage of a circuit comprising the solar battery 5 and a capacitor 6 is high, the 1st oscillation circuit 10 having a high threshold voltage and low power consumption and a 1st frequency division circuit 11 are operated. When a control section 3 detects it that the output voltage of the circuit comprising the battery 5 and the capacitor 6 is close to the threshold voltage of the circuit 10 due to the power stop, the control section 3 outputs an H signal to an inverting terminal. A MOSFET is inverted by the H signal, the voltage across the capacitor 6 is given to a doubler/halver circuit 9 and the circuit 9 gives a half voltage to the 2nd oscillation circuit 17 having a low threshold voltage and a 2nd frequency division circuit 13, resulting that the circuit 12 is oscillated. Thus, even when power from the solar battery does not exist, the oscillation is kept over a long period.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62203199A JPS6447105A (en) | 1987-08-17 | 1987-08-17 | Oscillation circuit for miniaturized electronic equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62203199A JPS6447105A (en) | 1987-08-17 | 1987-08-17 | Oscillation circuit for miniaturized electronic equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6447105A true JPS6447105A (en) | 1989-02-21 |
Family
ID=16470106
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62203199A Pending JPS6447105A (en) | 1987-08-17 | 1987-08-17 | Oscillation circuit for miniaturized electronic equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6447105A (en) |
-
1987
- 1987-08-17 JP JP62203199A patent/JPS6447105A/en active Pending
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