JPH0455823U - - Google Patents
Info
- Publication number
- JPH0455823U JPH0455823U JP9782290U JP9782290U JPH0455823U JP H0455823 U JPH0455823 U JP H0455823U JP 9782290 U JP9782290 U JP 9782290U JP 9782290 U JP9782290 U JP 9782290U JP H0455823 U JPH0455823 U JP H0455823U
- Authority
- JP
- Japan
- Prior art keywords
- pass filter
- boost circuit
- bass boost
- capacitor
- operational amplifier
- 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
Landscapes
- Tone Control, Compression And Expansion, Limiting Amplitude (AREA)
- Amplifiers (AREA)
Description
第１図は本考案の低音ブースト回路の構成を示
す回路図、第２図は本考案の他の実施例を示す回
路図、第３図は従来の低音ブースト回路を示す回
路図、第４図は低音ブースト回路の周波数特性を
示す図。
１……オペアンプ、Ｃ１，Ｃ２，Ｃ３……コン
デンサ、Ｒ１，Ｒ２，Ｒ３，Ｒ４，Ｒ５……抵抗
、４……イコライザ回路。
Fig. 1 is a circuit diagram showing the configuration of the bass boost circuit of the present invention, Fig. 2 is a circuit diagram showing another embodiment of the invention, Fig. 3 is a circuit diagram showing a conventional bass boost circuit, and Fig. 4 is a diagram showing the frequency characteristics of a bass boost circuit. 1... operational amplifier, C1, C2, C3... capacitor, R1, R2, R3, R4, R5... resistor, 4... equalizer circuit.
Claims (1)
スフイルタと、該ハイパスフイルタを介した信号
を正入力へ導くと共に出力信号を負入力へと帰還
するオペアンプとで構成される低音ブースト回路
において、前記オペアンプの出力信号の負入力へ
の帰還路と並列にコンデンサを設けたことを特徴
とする低音ブースト回路。 (2) コンデンサ及び抵抗とで構成されるハイパ
スフイルタと、該ハイパスフイルタを介した信号
を正入力へ導くと共に出力信号を負入力へと帰還
するオペアンプとで構成される低音ブースト回路
の出力を、共振周波数が前記ハイパスフイルタの
共振周波数の２倍に設定されたイコライザ回路に
導くように構成したことを特徴とする低音ブース
ト回路。[Claims for Utility Model Registration] (1) A high-pass filter composed of a capacitor and a resistor, and an operational amplifier that guides the signal passed through the high-pass filter to the positive input and returns the output signal to the negative input. 1. A bass boost circuit characterized in that a capacitor is provided in parallel with a feedback path of an output signal of the operational amplifier to a negative input. (2) The output of a bass boost circuit consisting of a high-pass filter consisting of a capacitor and a resistor, and an operational amplifier that guides the signal passed through the high-pass filter to the positive input and returns the output signal to the negative input. A bass boost circuit characterized in that the bass boost circuit is configured to lead to an equalizer circuit whose resonance frequency is set to twice the resonance frequency of the high-pass filter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990097822U JP2545776Y2 (en) | 1990-09-17 | 1990-09-17 | Low temperature boost circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990097822U JP2545776Y2 (en) | 1990-09-17 | 1990-09-17 | Low temperature boost circuit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0455823U true JPH0455823U (en) | 1992-05-13 |
| JP2545776Y2 JP2545776Y2 (en) | 1997-08-27 |
Family
ID=31838531
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1990097822U Expired - Fee Related JP2545776Y2 (en) | 1990-09-17 | 1990-09-17 | Low temperature boost circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2545776Y2 (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55125710A (en) * | 1979-03-20 | 1980-09-27 | Trio Kenwood Corp | Tone control circuit |
| JPS55143811A (en) * | 1979-04-26 | 1980-11-10 | Trio Kenwood Corp | Tone control circuit |
| JPS56172072U (en) * | 1980-05-12 | 1981-12-18 | ||
| JPS5899916U (en) * | 1981-12-24 | 1983-07-07 | パイオニア株式会社 | portable audio equipment |
| JPS599620U (en) * | 1982-07-08 | 1984-01-21 | 三洋電機株式会社 | Graphic equalizer circuit |
| JPS5998253A (en) * | 1982-11-27 | 1984-06-06 | Toshiba Corp | Microprogram controller |
| JPS6072407A (en) * | 1983-09-29 | 1985-04-24 | Oki Electric Ind Co Ltd | Ac amplifier circuit |
| JPS61321U (en) * | 1984-06-06 | 1986-01-06 | クラリオン株式会社 | Bass-treble control device |
-
1990
- 1990-09-17 JP JP1990097822U patent/JP2545776Y2/en not_active Expired - Fee Related
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55125710A (en) * | 1979-03-20 | 1980-09-27 | Trio Kenwood Corp | Tone control circuit |
| JPS55143811A (en) * | 1979-04-26 | 1980-11-10 | Trio Kenwood Corp | Tone control circuit |
| JPS56172072U (en) * | 1980-05-12 | 1981-12-18 | ||
| JPS5899916U (en) * | 1981-12-24 | 1983-07-07 | パイオニア株式会社 | portable audio equipment |
| JPS599620U (en) * | 1982-07-08 | 1984-01-21 | 三洋電機株式会社 | Graphic equalizer circuit |
| JPS5998253A (en) * | 1982-11-27 | 1984-06-06 | Toshiba Corp | Microprogram controller |
| JPS6072407A (en) * | 1983-09-29 | 1985-04-24 | Oki Electric Ind Co Ltd | Ac amplifier circuit |
| JPS61321U (en) * | 1984-06-06 | 1986-01-06 | クラリオン株式会社 | Bass-treble control device |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2545776Y2 (en) | 1997-08-27 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |