JPH01160727U - - Google Patents
Info
- Publication number
- JPH01160727U JPH01160727U JP5650888U JP5650888U JPH01160727U JP H01160727 U JPH01160727 U JP H01160727U JP 5650888 U JP5650888 U JP 5650888U JP 5650888 U JP5650888 U JP 5650888U JP H01160727 U JPH01160727 U JP H01160727U
- Authority
- JP
- Japan
- Prior art keywords
- resistor
- emphasis circuit
- capacitor
- circuit
- emphasis
- 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 3
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Networks Using Active Elements (AREA)
Description
第１図はこの考案に係るデイエンフアシス回路
付のローパスフイルタの実施例である回路図、第
２図及び第３図は従来の実施例を示すデイエンフ
アシス回路とローパスフイルタの回路図である。
主な図番の説明、２：第１の抵抗器、３：第２
の抵抗器、６：演算増幅器、９：デイエンフアシ
ス回路、９ａ：第３の抵抗器、９ｂ：第３コンデ
ンサ、９ｃ：スイツチ。
FIG. 1 is a circuit diagram showing an embodiment of a low-pass filter with a de-emphasis circuit according to this invention, and FIGS. 2 and 3 are circuit diagrams of a de-emphasis circuit and a low-pass filter showing conventional embodiments. Explanation of main figure numbers, 2: 1st resistor, 3: 2nd
6: operational amplifier, 9: de-emphasis circuit, 9a: third resistor, 9b: third capacitor, 9c: switch.
Claims (1)
るアクテイブフイルタにおいて、 第１の抵抗器と第２の抵抗器とを設けると共に
前記第１の抵抗器と第２の抵抗器との接続線路と
アース間にデイエンフアシス回路の特性を定める
ための第３の抵抗器とコンデンサとデイエンフア
シス回路をオン・オフするためのスイツチ手段と
の直列回路を設けたことを特徴とするデイエンフ
アシス回路付のローパスフイルタ。[Claims for Utility Model Registration] In an active filter comprising an active element, a resistor, and a capacitor, a first resistor and a second resistor are provided, and the first resistor and the second resistor are connected to each other. A device with a de-emphasis circuit, characterized in that a series circuit including a third resistor and a capacitor for determining the characteristics of the de-emphasis circuit and a switch means for turning on and off the de-emphasis circuit is provided between the connecting line and the ground. low pass filter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5650888U JPH01160727U (en) | 1988-04-28 | 1988-04-28 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5650888U JPH01160727U (en) | 1988-04-28 | 1988-04-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01160727U true JPH01160727U (en) | 1989-11-08 |
Family
ID=31282378
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5650888U Pending JPH01160727U (en) | 1988-04-28 | 1988-04-28 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01160727U (en) |
-
1988
- 1988-04-28 JP JP5650888U patent/JPH01160727U/ja active Pending