JPS61189615U - - Google Patents
Info
- Publication number
- JPS61189615U JPS61189615U JP7215685U JP7215685U JPS61189615U JP S61189615 U JPS61189615 U JP S61189615U JP 7215685 U JP7215685 U JP 7215685U JP 7215685 U JP7215685 U JP 7215685U JP S61189615 U JPS61189615 U JP S61189615U
- Authority
- JP
- Japan
- Prior art keywords
- pulse width
- circuit
- amplifier circuit
- signal
- wave
- 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
- 238000003079 width control Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 4
- 230000003321 amplification Effects 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
Landscapes
- Amplitude Modulation (AREA)
Description
第１図は本考案によるパルス幅変調送信器の振
幅変調装置の一実施例を示す構成図、第２図は第
１図の動作説明に供する各部の波形を示す波形図
、第３図は従来のパルス幅変調送信器の一例を示
すブロツク図、第４図は第３図の動作説明に供す
る波形図である。
１……パルス幅変調波生成回路、２……増幅回
路、３……ローパスフイルタ（低域通過波器）
、４……振幅変調用電源回路。
Fig. 1 is a block diagram showing an embodiment of the amplitude modulation device for a pulse width modulation transmitter according to the present invention, Fig. 2 is a waveform diagram showing waveforms of various parts to explain the operation of Fig. 1, and Fig. 3 is a conventional 4 is a block diagram showing an example of a pulse width modulation transmitter, and FIG. 4 is a waveform diagram for explaining the operation of FIG. 3. 1...Pulse width modulated wave generation circuit, 2...Amplification circuit, 3...Low pass filter (low pass wave device)
, 4... Amplitude modulation power supply circuit.
Claims (1)
よつて得られたパルス幅変調波を増幅する増幅回
路と、この増幅回路からの出力を受けて搬送波信
号に変換して出力信号とする低域通過波器とを
設けたパルス幅変調送信器において、前記増幅回
路に供給する電源電圧を信号波に基づくパルス幅
制御により変化させる手段を備えてなるようにし
たことを特徴とする振幅変調装置。 A circuit that generates a pulse width modulated wave, an amplifier circuit that amplifies the pulse width modulated wave obtained by this circuit, and a low frequency circuit that receives the output from this amplifier circuit and converts it into a carrier signal and outputs the signal. 1. An amplitude modulation device, characterized in that the pulse width modulation transmitter is equipped with a pass wave device, and further comprises means for changing the power supply voltage supplied to the amplifier circuit by pulse width control based on a signal wave.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7215685U JPS61189615U (en) | 1985-05-17 | 1985-05-17 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7215685U JPS61189615U (en) | 1985-05-17 | 1985-05-17 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61189615U true JPS61189615U (en) | 1986-11-26 |
Family
ID=30610308
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7215685U Pending JPS61189615U (en) | 1985-05-17 | 1985-05-17 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61189615U (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4915369A (en) * | 1972-05-18 | 1974-02-09 | ||
| JPS58147231A (en) * | 1982-02-26 | 1983-09-02 | Hitachi Ltd | Generating device of signal applied with pulse-width modulation |
-
1985
- 1985-05-17 JP JP7215685U patent/JPS61189615U/ja active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4915369A (en) * | 1972-05-18 | 1974-02-09 | ||
| JPS58147231A (en) * | 1982-02-26 | 1983-09-02 | Hitachi Ltd | Generating device of signal applied with pulse-width modulation |
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