JPH01159426U - - Google Patents
Info
- Publication number
- JPH01159426U JPH01159426U JP5519088U JP5519088U JPH01159426U JP H01159426 U JPH01159426 U JP H01159426U JP 5519088 U JP5519088 U JP 5519088U JP 5519088 U JP5519088 U JP 5519088U JP H01159426 U JPH01159426 U JP H01159426U
- Authority
- JP
- Japan
- Prior art keywords
- resistor
- input terminal
- circuit
- input
- diode
- 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
- 230000003321 amplification Effects 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
Landscapes
- Logic Circuits (AREA)
- Electronic Switches (AREA)
Description
第１図及び第２図Ａ乃至Ｄはこの考案に係る入
力保護回路の実施例を示し、第１図は回路図、第
２図Ａ乃至Ｄはこの考案を応用した他の実施例を
示した回路図である。第３図は従来例の回路図で
ある。
主な番号、符号の説明、１，５：入力端子、２
，６：ゲート回路、４：電流増幅回路、Ｃ：コン
デンサ、Ｄ１〜Ｄ６：ダイオード、Ｑ…トランジ
スタ、Ｒ１〜Ｒ４：抵抗。
1 and 2 A to D show an embodiment of the input protection circuit according to this invention, FIG. 1 is a circuit diagram, and FIGS. 2 A to D show other embodiments to which this invention is applied. It is a circuit diagram. FIG. 3 is a circuit diagram of a conventional example. Explanation of main numbers and symbols, 1, 5: Input terminal, 2
, 6: Gate circuit, 4: Current amplification circuit, C: Capacitor, D1 to D6: Diode, Q... Transistor, R1 to R4: Resistor.
Claims (1)
第１のダイオードの直列回路と、この直列回路の
第１の抵抗と第１のダイオードの接続中点と電子
回路の入力端線路との間に接続した第２のダイオ
ードと、電子回路の入力端と入力端子間に挿入し
た第２の抵抗とで構成したことを特徴とする入力
保護回路。 A series circuit of a first resistor and a first diode connected between the supply voltage source and earth, and between the midpoint of the connection of the first resistor and the first diode of this series circuit and the input end line of the electronic circuit. 1. An input protection circuit comprising: a second diode connected to the input terminal; and a second resistor inserted between the input terminal of the electronic circuit and the input terminal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5519088U JPH01159426U (en) | 1988-04-26 | 1988-04-26 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5519088U JPH01159426U (en) | 1988-04-26 | 1988-04-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01159426U true JPH01159426U (en) | 1989-11-06 |
Family
ID=31281087
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5519088U Pending JPH01159426U (en) | 1988-04-26 | 1988-04-26 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01159426U (en) |
-
1988
- 1988-04-26 JP JP5519088U patent/JPH01159426U/ja active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPH01159426U (en) | ||
| JPH01162922U (en) | ||
| JPS60172434U (en) | Malfunction prevention circuit at startup | |
| JPS58182513U (en) | Output circuit | |
| JPS59126319U (en) | DC stabilized power supply circuit | |
| JPH0273827U (en) | ||
| JPS60174328U (en) | Astable multivibrator | |
| JPS6355616U (en) | ||
| JPS611930U (en) | ECL circuit | |
| JPS6135419U (en) | bootstrap circuit | |
| JPS6257470U (en) | ||
| JPS6129524U (en) | grounded base amplifier | |
| JPS5969521U (en) | voltage generation circuit | |
| JPS6137626U (en) | variable resistance circuit | |
| JPS63108214U (en) | ||
| JPS5882019U (en) | amplifier circuit | |
| JPS61184334U (en) | ||
| JPS6144920U (en) | oscillator | |
| JPS588208U (en) | constant current circuit | |
| JPS61124094U (en) | ||
| JPS60114421U (en) | Mute circuit | |
| JPS5893013U (en) | Output transistor current limit circuit | |
| JPH02118315U (en) | ||
| JPS61156311U (en) | ||
| JPS6421417U (en) |