JPS5570122A - Frequency switching circuit - Google Patents
Frequency switching circuitInfo
- Publication number
- JPS5570122A JPS5570122A JP14438278A JP14438278A JPS5570122A JP S5570122 A JPS5570122 A JP S5570122A JP 14438278 A JP14438278 A JP 14438278A JP 14438278 A JP14438278 A JP 14438278A JP S5570122 A JPS5570122 A JP S5570122A
- Authority
- JP
- Japan
- Prior art keywords
- frequencies
- pulse signal
- different
- cut
- monostable multivibrator
- 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
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H15/00—Transversal filters
Landscapes
- Electronic Switches (AREA)
Abstract
PURPOSE:To obtain the different cut-off frequencies through the simple constitution by selecting the resistance of the monostable multivibrator and the capacity in correspondence to the different cut-off frequencies to secure the variable pulse duration and then fetching the different output from the output side of the charge/ discharge circuit. CONSTITUTION:Monostable multivibrator 1 generates the 1st pulse signal of the pulse duration of the pulse signal featuring duty D having the same repetitive frequency as cut-off frequency f0 which is triggered by the input pulse signal featuring duty D. While monostable multivibrator 2 generates the 2nd pulse signal of T2<T1 in response to the 1st pulse signal. Then the resistance of vibrator 1 and the capacity are selected in correspondence to different frequencies f0 to secure the variable pulse duration T1. Thus the switching output of different frequencies f0 is fetched from the output side of charge/discharge circuit 4. In this way, the different cut- off frequencies can be obtained through the simple constitution.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14438278A JPS5570122A (en) | 1978-11-20 | 1978-11-20 | Frequency switching circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14438278A JPS5570122A (en) | 1978-11-20 | 1978-11-20 | Frequency switching circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5570122A true JPS5570122A (en) | 1980-05-27 |
Family
ID=15360822
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14438278A Pending JPS5570122A (en) | 1978-11-20 | 1978-11-20 | Frequency switching circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5570122A (en) |
-
1978
- 1978-11-20 JP JP14438278A patent/JPS5570122A/en active Pending
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