JPS593612U - pulse width modulation circuit - Google Patents
pulse width modulation circuitInfo
- Publication number
- JPS593612U JPS593612U JP9899382U JP9899382U JPS593612U JP S593612 U JPS593612 U JP S593612U JP 9899382 U JP9899382 U JP 9899382U JP 9899382 U JP9899382 U JP 9899382U JP S593612 U JPS593612 U JP S593612U
- Authority
- JP
- Japan
- Prior art keywords
- pulse width
- width modulation
- modulation circuit
- switching
- circuits
- 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
- 238000010586 diagram Methods 0.000 description 3
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) [Abstract] 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回路のブロック図、第２図
はこの考案のパルス幅変調回路の一実施例の構成を示す
ブロック図、第３図ａないし第３図ｄおよび第４図ａな
いし第４図Ｃはそれぞれこの考案のパルス幅変調回路の
動作を説明するための・ 各部の信号波形図である。
１１ａ、１１ｂ・・・パルス幅変調回路、１２ａ。
１２ｂ・・・スイッチング回路、１３ａ・・・ローパス
フィルタ、Ｔ１１・・・入力端子、Ｔ１２・・・出力端
子、Ｄｌ、Ｄ２・・・ダイオード。Fig. 1 is a block diagram of a conventional pulse width modulation circuit, Fig. 2 is a block diagram showing the configuration of an embodiment of the pulse width modulation circuit of the present invention, Figs. 3a to 3d, and Fig. 4a. 4C to 4C are signal waveform diagrams of various parts for explaining the operation of the pulse width modulation circuit of this invention. 11a, 11b...Pulse width modulation circuit, 12a. 12b...Switching circuit, 13a...Low pass filter, T11...Input terminal, T12...Output terminal, Dl, D2...Diode.
Claims (1)
第１および第２のパルス幅変調回路と、この第１および
第２のパルス幅変調回路でパルス幅変調されたパルス幅
変調信号をそれぞれ電圧の異なる電源入力電圧でスイッ
チングして上記パルス幅変調信号のパルス幅の比率を変
える第１および第２のスイッチンレ゛回路と、この第１
および第２のスイッチング回路の出力を個別に復調した
後に合成する回路とよりなるパルス幅変調回路。First and second pulse width modulation circuits pulse width modulate the two divided audio input signals, respectively, and pulse width modulation signals pulse width modulated by the first and second pulse width modulation circuits are respectively pulse width modulated. first and second switching array circuits that change the pulse width ratio of the pulse width modulation signal by switching at different power supply input voltages;
and a circuit that individually demodulates and then synthesizes the outputs of the second switching circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9899382U JPS593612U (en) | 1982-06-30 | 1982-06-30 | pulse width modulation circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9899382U JPS593612U (en) | 1982-06-30 | 1982-06-30 | pulse width modulation circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS593612U true JPS593612U (en) | 1984-01-11 |
Family
ID=30234784
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9899382U Pending JPS593612U (en) | 1982-06-30 | 1982-06-30 | pulse width modulation circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS593612U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003069351A (en) * | 2001-08-29 | 2003-03-07 | Yokogawa Analytical Systems Inc | High frequency amplifier circuit and drive method of the high frequency amplifier circuit |
-
1982
- 1982-06-30 JP JP9899382U patent/JPS593612U/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003069351A (en) * | 2001-08-29 | 2003-03-07 | Yokogawa Analytical Systems Inc | High frequency amplifier circuit and drive method of the high frequency amplifier circuit |
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