JPH0319411A - Matrix circuit - Google Patents

Matrix circuit

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Publication number
JPH0319411A
JPH0319411A JP1153315A JP15331589A JPH0319411A JP H0319411 A JPH0319411 A JP H0319411A JP 1153315 A JP1153315 A JP 1153315A JP 15331589 A JP15331589 A JP 15331589A JP H0319411 A JPH0319411 A JP H0319411A
Authority
JP
Japan
Prior art keywords
npn
signal
resistors
circuit
signal transmission
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
Application number
JP1153315A
Other languages
Japanese (ja)
Inventor
Nobuhide Nishihara
西原 伸英
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP1153315A priority Critical patent/JPH0319411A/en
Publication of JPH0319411A publication Critical patent/JPH0319411A/en
Pending legal-status Critical Current

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  • Amplifiers (AREA)

Abstract

PURPOSE:To save number of components and to simplify the circuit constitution by combining differential amplifiers each comprising an NPN transistor(TR) and PNP TRS so as to operate the signals. CONSTITUTION:The circuit consists of 1st-3rd AC signal sources 1. 3, an NPN TR forming part of differential amplifiers, PNP TRS 6-8 in pairs with the NPN TR 5 to form the differential amplifiers, resistors 9, 12 deciding a matrix ratio and bias power supplies 13-16. As to a differential amplifier comprising the NPN TR 5, the PMP TR 8 and the resistors 9, 12, a 1st input AO signal is multiplied by resistances R9, R12 of the resistors 9, 12 with a multiple of R12/R9. That is, a signal summed by ratios of 1/R9, 1/R10, 1/R11 with respect to R12 is obtained at an output terminal 4 as a voltage change in the total of the 1st-3rd AC signal transmission paths. Then the matrix circuit whose number of components is reduced is obtained.

Description

【発明の詳細な説明】 産業上の利用分野 本発明は、2つ以上の交流信号をある定められた比率で
たし合わせるマトリクス回路に関するものである。
DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a matrix circuit that adds two or more alternating current signals at a predetermined ratio.

従来の技術 従来、この種のマトリクス回路は、第2図に示すような
構成であった。第2図は一例として3人力についての説
明である。
2. Description of the Related Art Conventionally, this type of matrix circuit has had a configuration as shown in FIG. FIG. 2 is an explanation of three-man power as an example.

第2図において、lは第一交流信号源、2は第二交流信
号源、3は第三交流信号源、17はマトリクス回路出力
端子、18,19.20.21は差動増幅回路を構成す
るNPNトランジスタ、22,23,24.25はマト
リクス比を決定する抵抗、26,27.28.29は定
電流源、30.31.32.33はバイアス電源である
。以下、第2図を参照して回路動作を説明する。
In FIG. 2, l is a first AC signal source, 2 is a second AC signal source, 3 is a third AC signal source, 17 is a matrix circuit output terminal, and 18, 19, 20, and 21 are differential amplifier circuits. 22, 23, 24.25 are resistors that determine the matrix ratio, 26, 27, 28, 29 are constant current sources, and 30, 31, 32, 33 are bias power supplies. Hereinafter, the circuit operation will be explained with reference to FIG.

最初に、18.21のNPNトランジスタ、22,25
の抵抗で構成する差動増幅器について述べる。
First, 18.21 NPN transistors, 22,25
We will describe a differential amplifier consisting of resistors.

第一交流信号源をVl   30.31のバイアス電源
の電圧値をV30. V31とすると、第一交流信号は
18のNPN トランジスタのベース電圧としてv1+
VHが入力され、21のNPNトランジスタのベースに
V30が加わっている。18.21のNPNトランジス
タのVBE電圧をVBEl8 , VBE2+とすると
、18.21のNPNトランジスタのエミッタ間の電圧
差AVl8−21は、 AVI1+−21=(VI+V31−VBEI8)−(
V30  VBE21)   となる。
The voltage value of the bias power supply of Vl 30.31 is set to V30. Assuming V31, the first AC signal is v1+ as the base voltage of 18 NPN transistors.
VH is input, and V30 is applied to the bases of 21 NPN transistors. If the VBE voltages of the NPN transistors in 18.21 are VBE18 and VBE2+, the voltage difference AVl8-21 between the emitters of the NPN transistors in 18.21 is as follows: AVI1+-21=(VI+V31-VBEI8)-(
V30 VBE21).

抵抗25の抵抗値をR26とすると、抵抗25に流れる
電流125は 1,,5=必佳Lk  ・・・・・・■    となる
Assuming that the resistance value of the resistor 25 is R26, the current 125 flowing through the resistor 25 is 1,,5=necessary Lk...■.

R25 この電流I25は、21のNPNトランジスタに流れる
電流として伝えられる。電流125は25の抵抗によっ
て電圧に変換され、第一交流信号伝送経路による出力端
子17の電圧変化量ΔVI7は、抵抗25の抵抗値をR
25とすると、 第一交流信号伝送経路の動作と同様に、第二交流信号伝
送経路では、19.21のNPN トランジスタ、抵抗
23.25で構成される差動増幅器、第三交流信号伝送
経路では、20.21のNPNトランジスタ、抵抗24
.25で構成される差動増幅器として考えると, ( V 30  V B!2 1 )1となる。
R25 This current I25 is transmitted as a current flowing to the NPN transistor 21. The current 125 is converted into voltage by the resistor 25, and the voltage change amount ΔVI7 of the output terminal 17 due to the first AC signal transmission path is the resistance value of the resistor 25, which is R.
25, similarly to the operation of the first AC signal transmission path, the second AC signal transmission path uses a differential amplifier consisting of a 19.21 NPN transistor and a resistor of 23.25, and the third AC signal transmission path uses a , 20.21 NPN transistor, resistor 24
.. Considering it as a differential amplifier composed of 25, it becomes (V 30 V B!2 1 )1.

交流的な電圧変化をVI7−1とすると■式は、入力の
第一交流信号v1が22.25の抵抗の抵抗値R22.
 R25によって1社倍されるR22 ことを表わす。
If the alternating current voltage change is VI7-1, the formula (2) is the resistance value R22.
It represents R22 multiplied by one company by R25.

次に、第二,第三交流信号伝送経路についても、上記■
,■式において、Vl7−2は第二交流信号伝送経路に
おける出力端子17の交流的な電圧変化量、Vl7−3
は第三交流信号伝送経路における出力端子l7の交流的
な電圧変化量、V2+V3は第二,第三交流信号源の電
圧値、R23. R24J R25は抵抗23,24.
25の抵抗値である。
Next, regarding the second and third AC signal transmission paths,
, ■ In the formula, Vl7-2 is the amount of alternating voltage change at the output terminal 17 in the second AC signal transmission path, and Vl7-3 is
is the amount of alternating current voltage change at the output terminal l7 in the third alternating current signal transmission path, V2+V3 is the voltage value of the second and third alternating current signal sources, and R23. R24J R25 are resistors 23, 24.
The resistance value is 25.

以上の第一,第二,第三の交流信号伝送経路を合わせる
と、出力端子4の電圧変化量v4はV 17 :V 1
7−1 + V 17−2 +V 17−3R, 2 
5を基準とし、それぞれ上, 5 土の比R22   
R23   R24 率でたし合わされた信号が得られる。
Combining the above first, second, and third AC signal transmission paths, the voltage change amount v4 of the output terminal 4 is V 17 :V 1
7-1 + V 17-2 + V 17-3R, 2
5 as the standard, respectively upper and 5 soil ratio R22
A signal summed at the ratio R23 R24 is obtained.

発明が解決しようとする課題 従来の回路構成において、構成素子数が19素子と必要
で、素子数を削減し、かつ同等なマトリクス比を構成す
るマトリクス回路が必要となった。
Problems to be Solved by the Invention In the conventional circuit configuration, the number of constituent elements is 19, and a matrix circuit that reduces the number of elements and configures an equivalent matrix ratio is required.

本発明は、このような問題点を解決するもので、PNP
トランジスタを用い、素子を削減し回路構成をシンプル
にし、同等のマトリクス比を構成することを目的とする
ものである。
The present invention solves these problems, and the PNP
The purpose is to use transistors to reduce the number of elements, simplify the circuit configuration, and configure the same matrix ratio.

課題を解決するための手段 前記課題を解決するために、本発明は従来のマトリクス
回路のNPNトランジスタで構戒する差動増幅器に対し
、NPNトランジスタとPNP トランジスタで構成す
る差動増幅器を用い、素子数を削減したマトリクス回路
を提供する。
Means for Solving the Problems In order to solve the problems described above, the present invention uses a differential amplifier composed of NPN transistors and PNP transistors, in contrast to the conventional differential amplifier using NPN transistors in a matrix circuit. A matrix circuit whose number is reduced is provided.

作用 NPN トランジスタの差動増幅器をNPNトランジス
タとPNP トランジスタの差動増幅器の構成にするこ
とにより、素子数を削減したマトリクス回路が構成でき
る。
A matrix circuit with a reduced number of elements can be constructed by changing the differential amplifier of operational NPN transistors to a differential amplifier of NPN transistors and PNP transistors.

実施例 第一図は本発明のマトリクス回路である。第一図におい
て、■は第一交流信号源、2は第二交流信号源、3は第
三交流信号源、4はマトリクス回路出力端子、5は差動
増幅回路を構成するNPNトランジスタ、6,7.8は
5のNPNトランジスタと対をなし、差動増幅回路を構
威するPNPトランジスタ、9.10,11.12はマ
トリクス比を決定する抵抗、13.14.15.16は
バイアス電源である。以下、第一図を参照して回路動作
を説明する。
Embodiment 1 FIG. 1 shows a matrix circuit of the present invention. In FIG. 1, ■ is a first AC signal source, 2 is a second AC signal source, 3 is a third AC signal source, 4 is a matrix circuit output terminal, 5 is an NPN transistor constituting a differential amplifier circuit, 6, 7.8 is a PNP transistor that pairs with the NPN transistor in 5 and forms a differential amplifier circuit, 9.10 and 11.12 are resistors that determine the matrix ratio, and 13.14.15.16 are bias power supplies. be. Hereinafter, the circuit operation will be explained with reference to FIG.

第一図において、最初に5のNPNトランジスタ、6の
PNP トランジスタ、9,12の抵抗で構成する差動
増幅器について述べる。第一交流信号源をvI− 1 
3 + 1 6のバイアス電源の電圧値をv131 V
Hとすると、第一交流信号は6のPNPトランジスタの
ベース電圧としてVl +VI3が入力され、5のNP
Nトランジスタのベース電圧どしてVl8が加わってい
る。5のNPNトランジスタのVegiE圧をVBES
、6のPNP トランジスタのVBg電圧をVBE6と
すると5のNPN トランジスタのエミッタと6のPN
Pトランジスタのエミッタ間の電位差ΔV6−5は ΔVs−a= (VI+Vl3+VBE6)(VI8 
 VBE5)   となる。
In FIG. 1, a differential amplifier consisting of 5 NPN transistors, 6 PNP transistors, and 9 and 12 resistors will be described first. The first AC signal source is vI-1
The voltage value of the bias power supply of 3 + 1 6 is v131 V
When the first AC signal is set to H, Vl + VI3 is input as the base voltage of the PNP transistor 6, and the NP
Vl8 is added as the base voltage of the N transistor. The VegiE pressure of NPN transistor 5 is VBES
, if the VBg voltage of the PNP transistor of 6 is VBE6, then the emitter of the NPN transistor of 5 and the PN of 6
The potential difference ΔV6-5 between the emitters of the P transistor is ΔVs-a= (VI+Vl3+VBE6)(VI8
VBE5).

抵抗9の抵抗値をR9とすると、抵抗9に流れる電流I
9は、 Is−”’−’      ・・”(!D   となる
If the resistance value of the resistor 9 is R9, the current I flowing through the resistor 9 is
9 becomes Is-"'-'..." (!D.

R9 この電流rsは、5のNPN トランジスタに流れる電
流として伝えられる。電流I9は12の抵抗によって電
圧に変換され、第一交流信号伝送経路による出力端子4
の電圧変化量ΔV4は、抵抗12ノ抵抗値ヲRI2トス
ルト、Av4=−LuAV6−5R9 一−”l(v++Vn+VBgs)−(V+s  Vl
lllll)IR9 となる。
R9 This current rs is transmitted as a current flowing through the NPN transistor 5. The current I9 is converted into a voltage by 12 resistors, and is connected to the output terminal 4 by the first AC signal transmission path.
The voltage change amount ΔV4 is the resistance value of the resistor 12 RI2 torque, Av4=-LuAV6-5R9 -"l(v++Vn+VBgs)-(V+s Vl
lllll) IR9.

交流的な電圧変化をV4−1とすると、V4−1−!′
!−″=iu−v1 ・・・・・・■ となる。
If the AC voltage change is V4-1, then V4-1-! ′
! −″=iu−v1 ...■.

Δt    R9 ■式は、入力の第一交流信号v1が9,12の抵抗の抵
抗値R.9,RI2によって普テ倍されることを表わす
Δt R9 Equation (2) shows that the input first AC signal v1 is the resistance value R. of the resistors 9 and 12. 9, indicates that it is multiplied by RI2.

次に、第二,第三交流信号伝送経路についても、第一交
流信号伝送経路の動作と同様に、第二交流信号伝送経路
では、7のPNP トランジスタと5のNPN トラン
ジスタ、抵抗10.12で構威される差動増幅器、第三
交流信号伝送経路では、8のPNP トランジスタと5
のnPN トランジスタ、抵抗11.12で構成される
差動増幅器として考えると、 一尺U V4−2−V2    ・・・・・・■RIO h V4−3−V3     ・・・・・・■  となる。
Next, regarding the second and third AC signal transmission paths, similarly to the operation of the first AC signal transmission path, in the second AC signal transmission path, 7 PNP transistors, 5 NPN transistors, and 10.12 resistors are used. In the third AC signal transmission path, 8 PNP transistors and 5
Considering it as a differential amplifier consisting of an nPN transistor and a resistor of 11.12, it becomes .

Rl1 上記■,■式において、v4−2は第二交流信号伝送経
路における出力端子4の交流的な電圧変化R、V4−3
は第三交流信号伝送経路における出力端子の交流的な電
圧変化量、V 2 p V 3は第二,第三交流信号源
の電圧値、RIG, Rll. RI2は抵抗10,1
1.12の抵抗値である。
Rl1 In the above formulas ■ and ■, v4-2 is the AC voltage change R of the output terminal 4 in the second AC signal transmission path, V4-3
is the amount of alternating current voltage change at the output terminal in the third alternating current signal transmission path, V 2 p V 3 is the voltage value of the second and third alternating current signal sources, RIG, Rll. RI2 is resistance 10,1
The resistance value is 1.12.

以上の第一,第二,第三の交流信号伝送経路を合わせる
と、出力端子4の電圧変化量v4は、■4°V4−1 
+V4−2+ V4−3回路図、第2図は従来のマトリ
クス回路の一実施例の回路図である。
Combining the above first, second, and third AC signal transmission paths, the voltage change amount v4 of the output terminal 4 is: ■4°V4-1
+V4-2+ V4-3 Circuit Diagram FIG. 2 is a circuit diagram of an embodiment of a conventional matrix circuit.

1〜3・・・・・・交流信号源、4,17・・・・・・
出力端子、5,18〜21・・・・・・NPNトランジ
スタ、6〜8・・・・・・PNP hランジスタ、9〜
12.22〜25・・・・・・抵抗、26〜29・・・
・・・定電流源、13〜16.30〜33・・・・・・
バイアス電源。
1 to 3... AC signal source, 4, 17...
Output terminal, 5, 18-21...NPN transistor, 6-8...PNP h transistor, 9-
12.22~25...Resistance, 26~29...
...Constant current source, 13-16.30-33...
Bias power supply.

Claims (1)

【特許請求の範囲】[Claims] 2つ以上の交流信号をある定められた比率でたし合わせ
るマトリクス回路で、NPNトランジスタとPNPトラ
ンジスタで構成する差動増幅器を組み合わせることによ
って、信号演算をすることを特徴としたマトリクス回路
A matrix circuit that adds two or more alternating current signals at a predetermined ratio, and is characterized in that it performs signal operations by combining differential amplifiers made up of NPN transistors and PNP transistors.
JP1153315A 1989-06-15 1989-06-15 Matrix circuit Pending JPH0319411A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1153315A JPH0319411A (en) 1989-06-15 1989-06-15 Matrix circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1153315A JPH0319411A (en) 1989-06-15 1989-06-15 Matrix circuit

Publications (1)

Publication Number Publication Date
JPH0319411A true JPH0319411A (en) 1991-01-28

Family

ID=15559808

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1153315A Pending JPH0319411A (en) 1989-06-15 1989-06-15 Matrix circuit

Country Status (1)

Country Link
JP (1) JPH0319411A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0514919A (en) * 1991-07-02 1993-01-22 Canon Inc Picture signal processor

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0514919A (en) * 1991-07-02 1993-01-22 Canon Inc Picture signal processor

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