JPS5541085A - Oscillation circuit - Google Patents
Oscillation circuitInfo
- Publication number
- JPS5541085A JPS5541085A JP11560178A JP11560178A JPS5541085A JP S5541085 A JPS5541085 A JP S5541085A JP 11560178 A JP11560178 A JP 11560178A JP 11560178 A JP11560178 A JP 11560178A JP S5541085 A JPS5541085 A JP S5541085A
- Authority
- JP
- Japan
- Prior art keywords
- power supply
- supply voltage
- oscillation
- fet2
- reliability
- 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
Abstract
PURPOSE: To increase the reliability of electronic unit through stable oscillation continued, by decreasing the threshold value of N channel transistor and keeping the oscillation even if the power supply voltage is lower, when the power supply voltage is lowered.
CONSTITUTION: P channel MOSFET 1 and N channel MOSFET 2 constitutes the oscillation circuit. When the power supply voltage is higher than the set level, the detection circuit 5 gives the positive output to MOSFET 4 to make equi-potential between the substrate and source of FET2 and to reduce the current consumption. Next, when the power supply voltage is less than the set voltage, negative output is given to the gate of FET4 to turn off FET 4. Accordingly, the substrate of FET2 is pulled up with the resistor 3 and the threshold value of FET2 is reduced to continue the oscillation with less power supply voltage. Thus, even if the power supply voltage is lowered, stable oscillation is kept to increase the reliability of electronic unit.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11560178A JPS5541085A (en) | 1978-09-19 | 1978-09-19 | Oscillation circuit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11560178A JPS5541085A (en) | 1978-09-19 | 1978-09-19 | Oscillation circuit |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5541085A true JPS5541085A (en) | 1980-03-22 |
JPS6154285B2 JPS6154285B2 (en) | 1986-11-21 |
Family
ID=14666656
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP11560178A Granted JPS5541085A (en) | 1978-09-19 | 1978-09-19 | Oscillation circuit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5541085A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2010171644A (en) * | 2009-01-21 | 2010-08-05 | Oki Semiconductor Co Ltd | Constant current driven oscillating circuit |
-
1978
- 1978-09-19 JP JP11560178A patent/JPS5541085A/en active Granted
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2010171644A (en) * | 2009-01-21 | 2010-08-05 | Oki Semiconductor Co Ltd | Constant current driven oscillating circuit |
Also Published As
Publication number | Publication date |
---|---|
JPS6154285B2 (en) | 1986-11-21 |
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