JPS593611U - Pulse width modulation amplifier circuit - Google Patents
Pulse width modulation amplifier circuitInfo
- Publication number
- JPS593611U JPS593611U JP9793682U JP9793682U JPS593611U JP S593611 U JPS593611 U JP S593611U JP 9793682 U JP9793682 U JP 9793682U JP 9793682 U JP9793682 U JP 9793682U JP S593611 U JPS593611 U JP S593611U
- Authority
- JP
- Japan
- Prior art keywords
- signal
- pulse width
- width modulation
- circuit
- output
- 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
- Amplifiers (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図は従来のパルス幅変調増幅回路の一例の構成を示
す回路図、第２図は同例の動作を説明するための波形図
、第３図は従来のパルス幅変調増幅回路の他の例の構成
を示す回路図、第４図は同例の動作を説明するための波
形図、第５図はこの考案の第１の実施例の構成を示す回
路図、第６図はこの考案の第２の実施例の構成を示す回
路図、第７図はこの考案の第３の実施例の構成を示す回
路図である。
３・・・・・・パルス幅変調回路、１３・・・・・くラ
ー積分回路、１８・・・・・・ヒステリシスコンパレー
タ、１９・・・・・・抵抗、２０・・・・・・発振部、
２１・・・・・・トリガフリップフロップＵＫフリップ
フロップ）、２３・・・・・・可変周波数発振回路。Fig. 1 is a circuit diagram showing the configuration of an example of a conventional pulse width modulation amplification circuit, Fig. 2 is a waveform diagram for explaining the operation of the same example, and Fig. 3 is a circuit diagram showing the configuration of an example of a conventional pulse width modulation amplification circuit. FIG. 4 is a waveform diagram to explain the operation of the example; FIG. 5 is a circuit diagram showing the configuration of the first embodiment of the invention; FIG. 6 is a circuit diagram of the invention. FIG. 7 is a circuit diagram showing the structure of the second embodiment, and FIG. 7 is a circuit diagram showing the structure of the third embodiment of this invention. 3...Pulse width modulation circuit, 13...Kuller integration circuit, 18...Hysteresis comparator, 19...Resistor, 20...Oscillation Department,
21...Trigger flip-flop UK flip-flop), 23...Variable frequency oscillation circuit.
Claims (1)
幅変調し、前記増幅すべき信号をパルス信号として増幅
するパルス幅変調増幅回路において、ミラー積分回路と
ヒステリシスコンパレータとを順に縦続接続しかつ前記
ヒステリシスコンパレータの出力を前記ミラー積分回路
へ帰還して構成した発振部と、前記ヒステリシスコンパ
レータの出力をトリガ信号として入力するトリガフリッ
プフロップとから構成される可変周波数発振回路を設け
、前記増幅すべき信号に比例した信号を前記ミラー積分
回路の入力篇号として供給する一方、前記トリガフリッ
プフロップの出力を前記キャリア信号として用いるよう
にしたことを特徴とするパルス幅変調増幅回路。In a pulse width modulation amplification circuit that pulse width modulates a carrier signal according to the amplitude of a signal to be amplified and amplifies the signal to be amplified as a pulse signal, a Miller integration circuit and a hysteresis comparator are sequentially connected in cascade, and the A variable frequency oscillation circuit is provided, which is composed of an oscillation section configured by feeding back the output of the hysteresis comparator to the Miller integration circuit, and a trigger flip-flop that inputs the output of the hysteresis comparator as a trigger signal, and A pulse width modulation amplification circuit characterized in that a signal proportional to is supplied as an input signal to the Miller integration circuit, and an output of the trigger flip-flop is used as the carrier signal.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9793682U JPS593611U (en) | 1982-06-29 | 1982-06-29 | Pulse width modulation amplifier circuit |
| US06/473,777 US4524335A (en) | 1982-03-13 | 1983-03-10 | Pulse-width modulation circuit with carrier signal frequency control |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9793682U JPS593611U (en) | 1982-06-29 | 1982-06-29 | Pulse width modulation amplifier circuit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS593611U true JPS593611U (en) | 1984-01-11 |
| JPH0336099Y2 JPH0336099Y2 (en) | 1991-07-31 |
Family
ID=30232744
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9793682U Granted JPS593611U (en) | 1982-03-13 | 1982-06-29 | Pulse width modulation amplifier circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS593611U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6364406A (en) * | 1986-09-04 | 1988-03-22 | Tamura Seisakusho Co Ltd | Variable frequency chopping system insulating amplifier |
| JPH03105029U (en) * | 1990-02-14 | 1991-10-31 | ||
| JPH03111021U (en) * | 1990-02-28 | 1991-11-14 | ||
| JP2011142697A (en) * | 2000-08-14 | 2011-07-21 | John W Ulrick | Digital class-d audio amplifier |
-
1982
- 1982-06-29 JP JP9793682U patent/JPS593611U/en active Granted
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6364406A (en) * | 1986-09-04 | 1988-03-22 | Tamura Seisakusho Co Ltd | Variable frequency chopping system insulating amplifier |
| JPH03105029U (en) * | 1990-02-14 | 1991-10-31 | ||
| JPH03111021U (en) * | 1990-02-28 | 1991-11-14 | ||
| JP2011142697A (en) * | 2000-08-14 | 2011-07-21 | John W Ulrick | Digital class-d audio amplifier |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0336099Y2 (en) | 1991-07-31 |
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