JPH03139019A - Unipolar/bipolar conversion circuit - Google Patents
Unipolar/bipolar conversion circuitInfo
- Publication number
- JPH03139019A JPH03139019A JP27501589A JP27501589A JPH03139019A JP H03139019 A JPH03139019 A JP H03139019A JP 27501589 A JP27501589 A JP 27501589A JP 27501589 A JP27501589 A JP 27501589A JP H03139019 A JPH03139019 A JP H03139019A
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- signal
- bipolar
- output
- output signal
- 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
- 238000006243 chemical reaction Methods 0.000 title claims description 10
- 230000015572 biosynthetic process Effects 0.000 claims description 10
- 238000003786 synthesis reaction Methods 0.000 claims description 10
- 230000002194 synthesizing effect Effects 0.000 abstract 3
- 238000010586 diagram Methods 0.000 description 3
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- Dc Digital Transmission (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
この発明はディジタル信号処理に関し、特にユニポーラ
信号からバイポーラ信号へ変換するユニポーラ／バイポ
ーラ変換回路に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to digital signal processing, and particularly to a unipolar/bipolar conversion circuit that converts a unipolar signal into a bipolar signal.
従来、この種のユニポーラ／バイポーラ変換回路はトラ
ンスを使用してユニポーラ信号をバイポーラ信号に変換
していた。Conventionally, this type of unipolar/bipolar conversion circuit has used a transformer to convert a unipolar signal to a bipolar signal.
上述した従来のユニポーラ／バイポーラ変換回路は、ト
ランスを用いているために集積回路にまとめることがで
きないという欠点がある。The conventional unipolar/bipolar conversion circuit described above has the disadvantage that it cannot be integrated into an integrated circuit because it uses a transformer.
この発明に係るユニポーラ／バイポーラ変換回路は、ユ
ニポーラ信号が入力する第１スイッチ手段および第２ス
イッチ手段と、第１スイッチ手段の出力信号が入力する
非反転アンプと、第２スイッチ手段の出力信号が入力す
る反転アンプと、この非反転アンプの出力信号と反転ア
ンプの出力信号を加算する合成回路と、この合成回路の
出力信号がバイポーラ信号になるように第１スイッチ手
段および第２スイッチ手段をオン−オフ状態に％ｌＪ御
する制御する制御回路とを有している。The unipolar/bipolar conversion circuit according to the present invention includes a first switch means and a second switch means to which a unipolar signal is input, a non-inverting amplifier to which an output signal of the first switch means is input, and an output signal of the second switch means is input. an input inverting amplifier, a synthesis circuit for adding the output signal of the non-inverting amplifier and the output signal of the inverting amplifier, and turning on the first switch means and the second switch means so that the output signal of the synthesis circuit becomes a bipolar signal. - a control circuit for controlling %lJ to the off state.
この発明は各機能部品を一つの集積回路とじて構成する
ことができる。In this invention, each functional component can be configured as one integrated circuit.
第１図はこの発明に係るユニポーラ／バイポーラ変換回
路の一実施例を示すブロック図である。FIG. 1 is a block diagram showing an embodiment of a unipolar/bipolar conversion circuit according to the present invention.
同図において、１は第２図（ａ）に示すユニポーラ信号
（ＲＺ）が入力する入力端子、２は第２図（ｄ’ｌに示
すバイポーラ信号が出力する出力端子、３は出力端子３
ａから第１制御信号を出力し、出力端子３ｂから第２制
御信号を出力する制御回路、４はこの第１制衡信号の入
力によジオン・オフ状態に制御される第１スイッチ回路
、５はこの第２制御信号の入力によジオン・オフ状態に
制御される第２スイッチ回路、６は第１スイッチ回路４
の出力信号を増幅して第２図（ｂ）に示すようにバイポ
ーラ信号の正極性部分の信号を＝力する非反転アンプ、
Ｔは第２スイツデ回路５の出力信号を反転増幅して第２
図（Ｃ）に示すようにバイポーラ信号の負極性部分の信
号を出力する反転アンプ、８は非反転アンプ８の出力信
号と反転アンプ７の出力信号とを加算して第２図（ｄ）
Ｋ示すバイポーラ信号を出力する合成回路である。In the same figure, 1 is an input terminal to which the unipolar signal (RZ) shown in FIG. 2(a) is input, 2 is an output terminal to which the bipolar signal shown in FIG.
A control circuit outputs a first control signal from a and a second control signal from an output terminal 3b; 4 a first switch circuit controlled to be in the on-off state by inputting the first control signal; 5 a first switch circuit; A second switch circuit 6 is controlled to be in the on-off state by inputting the second control signal, and 6 is a first switch circuit 4.
a non-inverting amplifier that amplifies the output signal of and outputs the positive polarity portion of the bipolar signal as shown in FIG. 2(b);
T inverts and amplifies the output signal of the second switch circuit 5 and outputs the second switch circuit 5.
As shown in Fig. 2(C), an inverting amplifier 8 outputs a signal of the negative polarity part of the bipolar signal, and 8 is the result of adding the output signal of the non-inverting amplifier 8 and the output signal of the inverting amplifier 7, as shown in Fig. 2(d).
This is a synthesis circuit that outputs a bipolar signal indicated by K.
次に、上記構成によるユニポーラ／バイポーラ変換回路
の動作について第２図（ａ）〜第２図（ｄ）を参照して
説明する。まず、入力端子１に入力した第２図（ａ）に
示すユニポーラ信号（ＲＺ）は第１スイッチ回路４の入
力端子４ｂおよび第２スイッチ回路５の入力端子５ｂに
入力する。したがって、第１スイッチ回路４は制御回路
３の出力端子３ａから出力する第１制御信号にょシ制御
され、その出力信号は非反転アンプロにょυ増幅されて
第２図６）に示すようにバイポーラ信号の正極性部分の
信号を合成回路８に出力する。同様に、第２スイッチ回
路５は制御回路３の出力端子３ｂから出力する第２制御
信号により制御され、その出方信号は反転アンプ７によ
り増幅されて第２図（、−）に示すようにバイポーラ信
号の負極性部分の信号を合成回路８に出力する。このよ
うに１第１スイッチ回路４および第２スイッチ回路５は
制御回路３によってオン・オフ状態に制御されるが、合
成回路８から出力するバイポーラ信号が正極性を示すと
きには第１スイッチ回路４がオン状態、第２スイッチ回
路５がオフ状態になる。同様に、合成回路８から出力す
るバイポーラ信号が負極性を示すときには第１スイッチ
回路４がオフ状態、第２スイッチ回路５がオン状態にな
る。このため、合成回路８は非反転アンプ６の出力信号
と反転アンプ７の出力信号とを加算して第２図（ｄＪに
示すバイポーラ信号を出力することができる。Next, the operation of the unipolar/bipolar conversion circuit having the above configuration will be explained with reference to FIGS. 2(a) to 2(d). First, the unipolar signal (RZ) shown in FIG. 2(a) input to the input terminal 1 is input to the input terminal 4b of the first switch circuit 4 and the input terminal 5b of the second switch circuit 5. Therefore, the first switch circuit 4 is controlled by the first control signal outputted from the output terminal 3a of the control circuit 3, and the output signal is amplified by a non-inverting amplifier and converted into a bipolar signal as shown in FIG. The signal of the positive polarity portion is outputted to the synthesis circuit 8. Similarly, the second switch circuit 5 is controlled by the second control signal output from the output terminal 3b of the control circuit 3, and the output signal is amplified by the inverting amplifier 7 to produce the output signal as shown in FIG. The signal of the negative polarity portion of the bipolar signal is output to the synthesis circuit 8. In this way, the first switch circuit 4 and the second switch circuit 5 are controlled to turn on and off by the control circuit 3, but when the bipolar signal output from the synthesis circuit 8 shows positive polarity, the first switch circuit 4 is turned on and off. In the on state, the second switch circuit 5 becomes in the off state. Similarly, when the bipolar signal output from the synthesis circuit 8 has negative polarity, the first switch circuit 4 is turned off and the second switch circuit 5 is turned on. Therefore, the synthesis circuit 8 can add the output signal of the non-inverting amplifier 6 and the output signal of the inverting amplifier 7 and output a bipolar signal shown in FIG. 2 (dJ).
以上詳細に説明したように、この発明に係るユニバーサ
ル／バイポーラ変換回路によれば、非反転アンプおよび
反転アンプを用いることによシ全体の機能を１つの集積
回路にまとめることができる効果がある。As described above in detail, the universal/bipolar conversion circuit according to the present invention has the effect that the entire function can be integrated into one integrated circuit by using a non-inverting amplifier and an inverting amplifier.
第１図はこの発明に係るユニポーラ／バイポーラ変換回
路の一実施例を示すブロック図、第２図（−〜第２図１
ｄ）は第１図の各部の波形を示す図である。
１・・・・入力端子、２・・・・出力端子、３争・・書
制御回路、４・・・・第１スイッチ回路、５・・・・第
２スイッチ回路、６・・・・非反転アンプ ７ ａ 句
・−反転アンプ、８拳＊・・合成回路。FIG. 1 is a block diagram showing an embodiment of a unipolar/bipolar conversion circuit according to the present invention, and FIG.
d) is a diagram showing waveforms at various parts in FIG. 1; 1...Input terminal, 2...Output terminal, 3...Write control circuit, 4...First switch circuit, 5...Second switch circuit, 6...Non Inverting amplifier 7 a phrase - Inverting amplifier, 8 fists *...Synthesis circuit.
Claims (1)
スイッチ手段と、第１スイッチ手段の出力信号が入力す
る非反転アンプと、第２スイッチ手段の出力信号が入力
する反転アンプと、この非反転アンプの出力信号と反転
アンプの出力信号を加算する合成回路と、この合成回路
の出力信号がバイポーラ信号になるように第１スイッチ
手段および第２スイッチ手段をオン・オフ状態に制御す
る制御回路とを設けたことを特徴とするユニポーラ／バ
イポーラ変換回路。a first switch means into which a unipolar signal is input;
a switch means, a non-inverting amplifier to which the output signal of the first switch means is input, an inverting amplifier to which the output signal of the second switch means is input, and a combination of adding the output signal of the non-inverting amplifier and the output signal of the inverting amplifier. 1. A unipolar/bipolar conversion circuit comprising: a circuit; and a control circuit that controls the first switch means and the second switch means to turn on and off so that the output signal of the synthesis circuit becomes a bipolar signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP27501589A JPH03139019A (en) | 1989-10-24 | 1989-10-24 | Unipolar/bipolar conversion circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP27501589A JPH03139019A (en) | 1989-10-24 | 1989-10-24 | Unipolar/bipolar conversion circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH03139019A true JPH03139019A (en) | 1991-06-13 |
Family
ID=17549692
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP27501589A Pending JPH03139019A (en) | 1989-10-24 | 1989-10-24 | Unipolar/bipolar conversion circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03139019A (en) |
-
1989
- 1989-10-24 JP JP27501589A patent/JPH03139019A/en active Pending
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