JPH024318U - - Google Patents
Info
- Publication number
- JPH024318U JPH024318U JP8109088U JP8109088U JPH024318U JP H024318 U JPH024318 U JP H024318U JP 8109088 U JP8109088 U JP 8109088U JP 8109088 U JP8109088 U JP 8109088U JP H024318 U JPH024318 U JP H024318U
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- energized
- channel mosfet
- power supply
- voltage
- 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.)
- Granted
Links
- 238000010586 diagram Methods 0.000 description 3
Landscapes
- Electronic Switches (AREA)
Description
第１図は、この考案の実施例に係るＭＯＳＦＥ
Ｔ保護回路を示す回路図、第２図は、従来のＣＭ
ＯＳ回路を示す構成図、第３図は、従来の電源回
路を示す回路図。
１……電源回路、６……ＰチヤネルＭＯＳＦＥ
Ｔ、６ａ……接続点、７，１３……ＮチヤネルＭ
ＯＳＦＥＴ、９……ツエナーダイオード、１４…
…ＮチヤネルＭＯＳＦＥＴ、１５……ツエナーダ
イオード、１５ａ……接続点、１６……抵抗、Ｂ
……電源ラインの接点、Ｄ……ドレイン、Ｇ……
ゲート、Ｒ……抵抗、Ｓ……ソース、ＧＮＤ……
グラウンド、ＶＺ１，ＶＺ２……ツエナー電圧、
ＶＢ……電源電圧、ＶＴＨ……閾値電圧、ＶＨ…
…接続点６ａにおける電圧。
FIG. 1 shows a MOSFE according to an embodiment of this invention.
A circuit diagram showing the T protection circuit, Figure 2, is a conventional CM
FIG. 3 is a block diagram showing an OS circuit, and FIG. 3 is a circuit diagram showing a conventional power supply circuit. 1...Power supply circuit, 6...P channel MOSFE
T, 6a... Connection point, 7, 13... N channel M
OSFET, 9... Zener diode, 14...
...N-channel MOSFET, 15... Zener diode, 15a... Connection point, 16... Resistor, B
...Power line contact, D...Drain, G...
Gate, R...resistance, S...source, GND...
Ground, VZ 1 , VZ 2 ... Zener voltage,
VB...power supply voltage, VTH...threshold voltage, VH...
...Voltage at the connection point 6a.
Claims (1)
停電を切り換える回路を有するＣＭＯＳ回路にお
いて、 常時通電している回路のＰチヤネルＭＯＳＦＥ
Ｔのソース側と電源ラインとの間に高耐圧のＮチ
ヤネルＭＯＳＦＥＴを介装し、該ＮチヤネルＭＯ
ＳＦＥＴのゲート側とグラウンドとの間に電源電
圧より高いツエナー電圧を有するツエナーダイオ
ードを接続し、前記ＮチヤネルＭＯＳＦＥＴのゲ
ート側とドレイン側との間に抵抗を接続したこと
を特徴とするＭＯＳＦＥＴ保護回路。[Scope of claim for utility model registration] Circuits that are constantly energized and energized by input signals;
In a CMOS circuit that has a circuit that switches during power outages, the P channel MOSFE of the circuit that is always energized
A high-voltage N-channel MOSFET is interposed between the source side of T and the power supply line, and the N-channel MOSFET
A MOSFET protection circuit characterized in that a Zener diode having a Zener voltage higher than the power supply voltage is connected between the gate side of the SFET and the ground, and a resistor is connected between the gate side and the drain side of the N-channel MOSFET. .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8109088U JPH0644186Y2 (en) | 1988-06-21 | 1988-06-21 | MOSFET protection circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8109088U JPH0644186Y2 (en) | 1988-06-21 | 1988-06-21 | MOSFET protection circuit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH024318U true JPH024318U (en) | 1990-01-11 |
| JPH0644186Y2 JPH0644186Y2 (en) | 1994-11-14 |
Family
ID=31305890
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8109088U Expired - Lifetime JPH0644186Y2 (en) | 1988-06-21 | 1988-06-21 | MOSFET protection circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0644186Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102810539A (en) * | 2011-06-03 | 2012-12-05 | 美国亚德诺半导体公司 | Metal oxide semiconductor output circuits and methods of forming the same |
-
1988
- 1988-06-21 JP JP8109088U patent/JPH0644186Y2/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102810539A (en) * | 2011-06-03 | 2012-12-05 | 美国亚德诺半导体公司 | Metal oxide semiconductor output circuits and methods of forming the same |
| JP2012253326A (en) * | 2011-06-03 | 2012-12-20 | Analog Devices Inc | Metal oxide semiconductor output circuits and methods of forming the same |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0644186Y2 (en) | 1994-11-14 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPS61189732U (en) | ||
| DE3784609D1 (en) | INTEGRATED CIRCUIT WITH "LATCH-UP" PROTECTIVE CIRCUIT IN COMPLEMENTARY MOS CIRCUIT TECHNOLOGY. | |
| JPH024318U (en) | ||
| JPS6254540U (en) | ||
| JPH0344915U (en) | ||
| JPH0262835U (en) | ||
| JPH0741216Y2 (en) | Semiconductor integrated circuit | |
| JPH0446724U (en) | ||
| JPS61131141U (en) | ||
| JPS63149637U (en) | ||
| JPS62186529U (en) | ||
| JPH01144925U (en) | ||
| JPH02118329U (en) | ||
| JPH03123326U (en) | ||
| JPH0320546U (en) | ||
| JPH02138929U (en) | ||
| JPS6441150U (en) | ||
| JPS61140611U (en) | ||
| JPS63173925U (en) | ||
| JPS6157715U (en) | ||
| JPH0466609U (en) | ||
| JPH0352U (en) | ||
| JPS61111231U (en) | ||
| JPS62154749U (en) | ||
| JPS61124126U (en) |