JPH01175353U - - Google Patents
Info
- Publication number
- JPH01175353U JPH01175353U JP6968488U JP6968488U JPH01175353U JP H01175353 U JPH01175353 U JP H01175353U JP 6968488 U JP6968488 U JP 6968488U JP 6968488 U JP6968488 U JP 6968488U JP H01175353 U JPH01175353 U JP H01175353U
- Authority
- JP
- Japan
- Prior art keywords
- operational amplifier
- inverting input
- input terminal
- voltage
- reference voltage
- 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
- 238000010586 diagram Methods 0.000 description 5
Landscapes
- Amplifiers (AREA)
Description
第１図は本考案の一実施例を示す回路図、第２
図は本考案による直流交流加算回路の入出力特性
を示す図、第３図は従来の直流交流加算回路の回
路図、第４図は従来の直流交流加算回路の入出力
特性を示す図である。
１……直流電圧入力端子、２……交流電圧入力
端子、３……非反転入力端子、４……直流交流加
算出力端子、５……第１の演算増幅器、６……第
２の演算増幅器、Ｒ３〜Ｒ６……抵抗、Ｚ１，Ｚ
２……インピーダンス、Ｖｏ……直流交流加算出
力電圧、Ｖ１……直流入力電圧、ｖ２……交流入
力電圧、Ｖ３……出力電圧、ＶＲ……直流基準電
圧、ＶＣＣ……電源電圧、ＶＳＡＴ……出力飽和
電圧。
Figure 1 is a circuit diagram showing one embodiment of the present invention, Figure 2 is a circuit diagram showing an embodiment of the present invention.
Figure 3 is a diagram showing the input/output characteristics of the DC/AC addition circuit according to the present invention, Figure 3 is a circuit diagram of a conventional DC/AC addition circuit, and Figure 4 is a diagram showing the input/output characteristics of the conventional DC/AC addition circuit. . DESCRIPTION OF SYMBOLS 1... DC voltage input terminal, 2... AC voltage input terminal, 3... Non-inverting input terminal, 4... DC/AC addition output terminal, 5... First operational amplifier, 6... Second operational amplifier , R 3 to R 6 ... resistance, Z 1 , Z
2 ...Impedance, Vo...DC/AC addition output voltage, V1 ...DC input voltage, V2 ...AC input voltage, V3 ...Output voltage, VR...DC reference voltage, VCC...Power supply voltage, VSAT...Output saturation voltage.
Claims (1)
力端子に直流基準電圧を印加する単一電源動作の
第１の演算増幅器と、該第１の演算増幅器の出力
電圧と直流入力電圧とを抵抗接続加算して非反転
入力端子に入力する単一電源動作の第２の演算増
幅器とから成る直流交流加算回路において、前記
第１の演算増幅器の非反転入力端子と前記第２の
演算増幅器の反転入力端子とを抵抗接続して前記
直流基準電圧を前記第２の演算増幅器の前記非反
転入力端子に印加したことを特徴とする直流交流
加算回路。 A first operational amplifier operating on a single power supply that inputs an AC input voltage to an inverting input terminal and applies a DC reference voltage to a non-inverting input terminal, and a resistance connection between the output voltage of the first operational amplifier and the DC input voltage. In a DC/AC adding circuit comprising a second operational amplifier operating on a single power supply that adds the sum and inputs the sum to a non-inverting input terminal, the non-inverting input terminal of the first operational amplifier and the inverting input of the second operational amplifier A DC/AC adding circuit, characterized in that the DC reference voltage is applied to the non-inverting input terminal of the second operational amplifier by connecting the DC reference voltage to the non-inverting input terminal of the second operational amplifier.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988069684U JPH0650045Y2 (en) | 1988-05-26 | 1988-05-26 | DC AC addition circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988069684U JPH0650045Y2 (en) | 1988-05-26 | 1988-05-26 | DC AC addition circuit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01175353U true JPH01175353U (en) | 1989-12-13 |
| JPH0650045Y2 JPH0650045Y2 (en) | 1994-12-14 |
Family
ID=31294958
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1988069684U Expired - Lifetime JPH0650045Y2 (en) | 1988-05-26 | 1988-05-26 | DC AC addition circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0650045Y2 (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55107306A (en) * | 1979-02-08 | 1980-08-18 | Matsushita Electric Ind Co Ltd | Operational amplifier |
| JPS5988756U (en) * | 1982-12-06 | 1984-06-15 | パイオニア株式会社 | anti-phase summing amplifier |
| JPS61195470A (en) * | 1985-02-25 | 1986-08-29 | Matsushita Electric Works Ltd | Adder circuit |
-
1988
- 1988-05-26 JP JP1988069684U patent/JPH0650045Y2/en not_active Expired - Lifetime
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55107306A (en) * | 1979-02-08 | 1980-08-18 | Matsushita Electric Ind Co Ltd | Operational amplifier |
| JPS5988756U (en) * | 1982-12-06 | 1984-06-15 | パイオニア株式会社 | anti-phase summing amplifier |
| JPS61195470A (en) * | 1985-02-25 | 1986-08-29 | Matsushita Electric Works Ltd | Adder circuit |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0650045Y2 (en) | 1994-12-14 |
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