JPS61146022U - - Google Patents
Info
- Publication number
- JPS61146022U JPS61146022U JP2854385U JP2854385U JPS61146022U JP S61146022 U JPS61146022 U JP S61146022U JP 2854385 U JP2854385 U JP 2854385U JP 2854385 U JP2854385 U JP 2854385U JP S61146022 U JPS61146022 U JP S61146022U
- Authority
- JP
- Japan
- Prior art keywords
- amplifier
- capacitor
- switch
- resistors
- resistor
- 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
- 239000003990 capacitor Substances 0.000 claims description 5
- 230000003321 amplification Effects 0.000 claims 1
- 238000003199 nucleic acid amplification method Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 3
Landscapes
- Networks Using Active Elements (AREA)
- Amplifiers (AREA)
Description
第１図はこの考案の一例の回路図、第２図はこ
の考案の他の例の回路図、第３図は従来のローパ
スフイルタの回路図である。
１は入力端子、３及び４は抵抗、５はアンプ、
６は第１のコンデンサ、８は第２のコンデンサ、
１４はトランジスタスイツチである。
FIG. 1 is a circuit diagram of one example of this invention, FIG. 2 is a circuit diagram of another example of this invention, and FIG. 3 is a circuit diagram of a conventional low-pass filter. 1 is an input terminal, 3 and 4 are resistors, 5 is an amplifier,
6 is the first capacitor, 8 is the second capacitor,
14 is a transistor switch.
Claims (1)
ージホロワ形のアンプの入力端に接続され、この
アンプの出力端と上記第１及び第２の抵抗の接続
点との間に第１のコンデンサが接続され、上記第
２の抵抗と上記アンプの入力端との接続点が第２
のコンデンサとスイツチとの直列回路を介して接
地されてなり、 上記スイツチがオンであるときはローパスフイ
ルタとなり、上記スイツチがオフであるときには
増幅度１のバツフアアンプとなるようにされたロ
ーパスフイルタ。[Claims for Utility Model Registration] An input terminal is connected to the input end of a voltage follower type amplifier via first and second resistors, and the output end of this amplifier is connected to the first and second resistors. A first capacitor is connected between the second resistor and the input end of the amplifier, and a second capacitor is connected between the second resistor and the input terminal of the amplifier.
The low-pass filter is grounded through a series circuit of a capacitor and a switch, and functions as a low-pass filter when the switch is on, and functions as a buffer amplifier with an amplification factor of 1 when the switch is off.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2854385U JPS61146022U (en) | 1985-02-28 | 1985-02-28 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2854385U JPS61146022U (en) | 1985-02-28 | 1985-02-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61146022U true JPS61146022U (en) | 1986-09-09 |
Family
ID=30526518
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2854385U Pending JPS61146022U (en) | 1985-02-28 | 1985-02-28 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61146022U (en) |
-
1985
- 1985-02-28 JP JP2854385U patent/JPS61146022U/ja active Pending
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