JPS5760728A - Cr oscillating circuit - Google Patents
Cr oscillating circuitInfo
- Publication number
- JPS5760728A JPS5760728A JP55134092A JP13409280A JPS5760728A JP S5760728 A JPS5760728 A JP S5760728A JP 55134092 A JP55134092 A JP 55134092A JP 13409280 A JP13409280 A JP 13409280A JP S5760728 A JPS5760728 A JP S5760728A
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- switch
- discharging
- supplies
- charging
- 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
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K3/00—Circuits for generating electric pulses; Monostable, bistable or multistable circuits
- H03K3/02—Generators characterised by the type of circuit or by the means used for producing pulses
- H03K3/023—Generators characterised by the type of circuit or by the means used for producing pulses by the use of differential amplifiers or comparators, with internal or external positive feedback
- H03K3/0231—Astable circuits
Abstract
PURPOSE:To stabilize the oscillation frequency and to reduce the number of used elements, by driving a switch circuit for discharge synchronously with a switch circuit for feedback to set pulses of the oscillation output optionally. CONSTITUTION:A CR charging and discharging circuit 12 supplies a comparison voltage to one input terminal of a voltage comparator 11, and a reference voltage generating circuit 13 supplies the first or the second reference voltage to the other input terminal. A transistor TR switch 15 for discharge is driven synchronously with a feedback switch circuit 14 in accordance with the output of the comparator 11, and a discharging path of a capacitor C of the charging and discharging circuit 12 is formed by turning on the switch 15, and a resistance R2 is inserted to this path. As a result, the oscillation frequency of the CR oscillating circuit is stabilized, and the number of used elements is reduced.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP55134092A JPS5760728A (en) | 1980-09-26 | 1980-09-26 | Cr oscillating circuit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP55134092A JPS5760728A (en) | 1980-09-26 | 1980-09-26 | Cr oscillating circuit |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5760728A true JPS5760728A (en) | 1982-04-12 |
Family
ID=15120235
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP55134092A Pending JPS5760728A (en) | 1980-09-26 | 1980-09-26 | Cr oscillating circuit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5760728A (en) |
-
1980
- 1980-09-26 JP JP55134092A patent/JPS5760728A/en active Pending
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