JPH01100521U - - Google Patents
Info
- Publication number
- JPH01100521U JPH01100521U JP19598487U JP19598487U JPH01100521U JP H01100521 U JPH01100521 U JP H01100521U JP 19598487 U JP19598487 U JP 19598487U JP 19598487 U JP19598487 U JP 19598487U JP H01100521 U JPH01100521 U JP H01100521U
- Authority
- JP
- Japan
- Prior art keywords
- chopper
- voltage
- amplifier circuit
- amplifier
- holding
- 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
- 230000001105 regulatory effect Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 4
- 239000003990 capacitor Substances 0.000 description 1
- 238000009499 grossing Methods 0.000 description 1
Landscapes
- Amplifiers (AREA)
Description
第１図はこの考案の実施例に係るチヨツパ増幅
器の回路構成図、第２図は同じくその動作波形図
、第３図は従来のチヨツパ増幅器の回路構成図、
第４図は同じくその動作波形図である。
ｅｉ……入力電圧、Ｓ１，Ｓ２……スイツチ、
Ａ１，Ａ２……オペアンプ、Ｃ１，Ｃ２，Ｃ３…
…コンデンサ、Ｆ１，Ｆ２……平滑回路。
FIG. 1 is a circuit configuration diagram of a chopper amplifier according to an embodiment of this invention, FIG. 2 is a diagram of its operating waveforms, and FIG. 3 is a circuit diagram of a conventional chopper amplifier.
FIG. 4 is also an operational waveform diagram. ei...Input voltage, S1 , S2 ...Switch,
A 1 , A 2 ... operational amplifier, C 1 , C 2 , C 3 ...
...Capacitor, F 1 , F 2 ... Smoothing circuit.
Claims (1)
からの信号を増幅する増幅回路と、その増幅回路
のオフセツト電圧を除去した電圧を上記チヨツパ
と同期して制御するスイツチ手段とを有するチヨ
ツパ増幅器において、 上記スイツチ手段の出力側に上記増幅回路の出
力電圧に規制される電圧を保持する電圧保持手段 を設けたことを特徴とするチヨツパ増幅器。[Scope of Claim for Utility Model Registration] A chopper that intermittents an input signal, an amplifier circuit that amplifies the signal from the chopper, and a switch means that controls the voltage obtained by removing the offset voltage of the amplifier circuit in synchronization with the chopper. A chopper amplifier comprising: a voltage holding means for holding a voltage regulated by the output voltage of the amplifier circuit on the output side of the switching means.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19598487U JPH01100521U (en) | 1987-12-25 | 1987-12-25 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19598487U JPH01100521U (en) | 1987-12-25 | 1987-12-25 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01100521U true JPH01100521U (en) | 1989-07-06 |
Family
ID=31486630
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19598487U Pending JPH01100521U (en) | 1987-12-25 | 1987-12-25 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01100521U (en) |
-
1987
- 1987-12-25 JP JP19598487U patent/JPH01100521U/ja active Pending