JPH03103615U - - Google Patents
Info
- Publication number
- JPH03103615U JPH03103615U JP1216690U JP1216690U JPH03103615U JP H03103615 U JPH03103615 U JP H03103615U JP 1216690 U JP1216690 U JP 1216690U JP 1216690 U JP1216690 U JP 1216690U JP H03103615 U JPH03103615 U JP H03103615U
- Authority
- JP
- Japan
- Prior art keywords
- resistance element
- circuit
- amplifier circuit
- bridge
- output terminal
- 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
Description
第１図は本考案の原理的構成を示す図、第２図
は本考案実施例の回路図、第３図は従来の回路図
である。
１……入力端子、２……出力端子、３……増幅
器、４……抵抗素子、５……抵抗素子、６……ダ
イオード、６１……ダイオード、７……電流源、
７１……トランジスタ、７５…電流源。
FIG. 1 is a diagram showing the basic structure of the present invention, FIG. 2 is a circuit diagram of an embodiment of the present invention, and FIG. 3 is a conventional circuit diagram. 1... Input terminal, 2... Output terminal, 3... Amplifier, 4... Resistance element, 5... Resistance element, 6... Diode, 61... Diode, 7... Current source,
71...Transistor, 75...Current source.
Claims (1)
した負帰還増幅回路において、上記第１の抵抗素
子に並列に第２の抵抗素子とブリツジ構成のダイ
オードスイツチング回路との直列接続回路を接続
したことを特徴とする利得切替型増幅回路。 In a negative feedback amplifier circuit in which a first resistance element is connected between an output terminal and an input terminal, a series connection circuit of a second resistance element and a bridge-configured diode switching circuit is connected in parallel to the first resistance element. A gain switching type amplifier circuit characterized by the following.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1216690U JPH03103615U (en) | 1990-02-09 | 1990-02-09 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1216690U JPH03103615U (en) | 1990-02-09 | 1990-02-09 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH03103615U true JPH03103615U (en) | 1991-10-28 |
Family
ID=31515656
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1216690U Pending JPH03103615U (en) | 1990-02-09 | 1990-02-09 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03103615U (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5174257A (en) * | 1974-12-24 | 1976-06-28 | Fujitsu Ltd | TEIDENRYUKUDOKAIRO |
| JPS536553A (en) * | 1976-07-08 | 1978-01-21 | Matsushita Electric Ind Co Ltd | Variable gain amplifier |
-
1990
- 1990-02-09 JP JP1216690U patent/JPH03103615U/ja active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5174257A (en) * | 1974-12-24 | 1976-06-28 | Fujitsu Ltd | TEIDENRYUKUDOKAIRO |
| JPS536553A (en) * | 1976-07-08 | 1978-01-21 | Matsushita Electric Ind Co Ltd | Variable gain amplifier |