JPH01172718U - - Google Patents
Info
- Publication number
- JPH01172718U JPH01172718U JP6750888U JP6750888U JPH01172718U JP H01172718 U JPH01172718 U JP H01172718U JP 6750888 U JP6750888 U JP 6750888U JP 6750888 U JP6750888 U JP 6750888U JP H01172718 U JPH01172718 U JP H01172718U
- Authority
- JP
- Japan
- Prior art keywords
- comparator
- input
- carrier wave
- signal
- power amplifier
- 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
- 230000003321 amplification Effects 0.000 claims 1
- 238000003199 nucleic acid amplification method Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
- 239000003990 capacitor Substances 0.000 description 1
Landscapes
- Amplifiers (AREA)
Description
第１図Ａ及びＢは本考案の実施例を説明するた
めのスイツチング方式交流電力増幅器の回路図で
あり、第２図Ａ及びＢは、従来のスイツチング方
式交流電力増幅器を説明するための回路図である
。
４０……入力端子、４１……増幅器、４２……
コンパレータ、５１……ドライブ回路、５２，５
３……トランジスタ、５４……コイル、４３，４
４，４５，４６，４８，４９，５０，５６，７０
，７２，７３……抵抗、４７，５５，７１……コ
ンデンサ。
Figures 1A and B are circuit diagrams of a switching type AC power amplifier for explaining an embodiment of the present invention, and Figures 2A and B are circuit diagrams for explaining a conventional switching type AC power amplifier. It is. 40...Input terminal, 41...Amplifier, 42...
Comparator, 51... Drive circuit, 52, 5
3...Transistor, 54...Coil, 43,4
4, 45, 46, 48, 49, 50, 56, 70
, 72, 73...resistor, 47, 55, 71... capacitor.
Claims (1)
幅すべき信号波とを入力して比較し、該比較器の
出力から出力されるパルス幅変調された信号を電
流増幅したあとローパスフイルタを介して前記搬
送波成分を除去することにより復調された出力信
号を得るよう構成された電力増幅器において、 前記比較器の正入力に前記搬送波と前記増幅す
べき信号とを入力する手段と、 前記比較器の負入力に前記搬送波と前記復調さ
れた出力信号とを入力する手段とを、 設けたことを特徴とする電力増幅器。[Claims for Utility Model Registration] A carrier wave and a signal wave to be amplified are input to a comparator having a positive input and a negative input and compared, and a pulse width modulated signal outputted from the output of the comparator is converted into a current. In a power amplifier configured to obtain a demodulated output signal by removing the carrier wave component through a low-pass filter after amplification, the carrier wave and the signal to be amplified are input to the positive input of the comparator. A power amplifier comprising: means for inputting the carrier wave and the demodulated output signal to a negative input of the comparator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6750888U JPH01172718U (en) | 1988-05-24 | 1988-05-24 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6750888U JPH01172718U (en) | 1988-05-24 | 1988-05-24 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01172718U true JPH01172718U (en) | 1989-12-07 |
Family
ID=31292880
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6750888U Pending JPH01172718U (en) | 1988-05-24 | 1988-05-24 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01172718U (en) |
-
1988
- 1988-05-24 JP JP6750888U patent/JPH01172718U/ja active Pending
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