JP4856609B2 - 通信モジュール - Google Patents
通信モジュール Download PDFInfo
- Publication number
- JP4856609B2 JP4856609B2 JP2007264802A JP2007264802A JP4856609B2 JP 4856609 B2 JP4856609 B2 JP 4856609B2 JP 2007264802 A JP2007264802 A JP 2007264802A JP 2007264802 A JP2007264802 A JP 2007264802A JP 4856609 B2 JP4856609 B2 JP 4856609B2
- Authority
- JP
- Japan
- Prior art keywords
- terminal
- power supply
- voltage
- circuit
- bus
- 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.)
- Active
Links
- 230000004044 response Effects 0.000 claims description 11
- 230000005540 biological transmission Effects 0.000 description 69
- 230000003287 optical effect Effects 0.000 description 49
- 230000002265 prevention Effects 0.000 description 14
- 238000010586 diagram Methods 0.000 description 7
- 238000003780 insertion Methods 0.000 description 5
- 230000037431 insertion Effects 0.000 description 5
- 230000008859 change Effects 0.000 description 2
- 230000002452 interceptive effect Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Images
Landscapes
- Elimination Of Static Electricity (AREA)
- Direct Current Feeding And Distribution (AREA)
Description
図2は、本発明の第1実施形態に係る光伝送モジュール20のブロック図である。同図に示すように、光伝送モジュール20は、Vcc端子30、SDA端子32、SCL端子34、GND端子36、突入電流防止回路38、光送信回路40、光受信回路42、通信制御回路44、静電保護ダイオード46,48、を含んで構成される。
図3は、本発明の第2実施形態に係る光伝送モジュール22のブロック図である。同図に示すように、光伝送モジュール22は、通信制御回路44と静電保護ダイオード46,48とを含む通信制御素子50と、オペアンプ52と、を備える点を除き、第1実施形態に係る光伝送モジュール20と同様の構成を有する。以下、重複説明を避けるため、光伝送モジュール22と光伝送モジュール20との相違点のみを説明する。
Claims (2)
- 電源電圧が供給される電源端子と、前記電源電圧以下の電圧が供給されるバス端子と、前記電源端子の電圧上昇に応じて内部回路の駆動電圧を徐増させる駆動電圧調整手段と、一方端に対する他方端の電位の増大に応じて該他方端から該一方端に流れる電流の制限を解除する整流手段と、を含む通信モジュールであって、
前記整流手段の一方端は、前記電源端子と前記駆動電圧調整手段との間に接続され、
前記整流手段の他方端は、前記バス端子と前記内部回路との間に接続される、
ことを特徴とする通信モジュール。 - 電源電圧が供給される電源端子と、前記電源電圧以下の電圧が供給されるバス端子と、前記電源端子の電圧上昇に応じて内部回路の駆動電圧を徐増させる駆動電圧調整手段と、一方端に対する他方端の電位の増大に応じて該他方端から該一方端に流れる電流の制限を解除する手段であって、前記一方端は前記駆動電圧調整手段と前記内部回路との間に接続され、前記他方端は前記バス端子と前記内部回路との間に接続された整流手段と、を含む通信モジュールであって、
前記バス端子に印加される電圧に応じた電圧を前記内部回路に印加するとともに、前記バス端子から前記内部回路に流れる電流を制限するバッファ手段を、
さらに含むことを特徴とする通信モジュール。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2007264802A JP4856609B2 (ja) | 2007-10-10 | 2007-10-10 | 通信モジュール |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2007264802A JP4856609B2 (ja) | 2007-10-10 | 2007-10-10 | 通信モジュール |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2009095171A JP2009095171A (ja) | 2009-04-30 |
JP4856609B2 true JP4856609B2 (ja) | 2012-01-18 |
Family
ID=40666588
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2007264802A Active JP4856609B2 (ja) | 2007-10-10 | 2007-10-10 | 通信モジュール |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP4856609B2 (ja) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2015061456A (ja) * | 2013-09-20 | 2015-03-30 | 日本無線株式会社 | 電源回路 |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0590929A (ja) * | 1991-09-30 | 1993-04-09 | Nec Corp | 半導体集積回路 |
JP3135811B2 (ja) * | 1995-02-13 | 2001-02-19 | 三菱電機株式会社 | 主副電子装置のインタフェイス装置 |
JP4132270B2 (ja) * | 1998-04-20 | 2008-08-13 | 三菱電機株式会社 | 半導体集積回路装置 |
JP2000357772A (ja) * | 1999-06-17 | 2000-12-26 | Nec Corp | 入力保護回路の活線挿抜システム及び方法 |
JP2003031672A (ja) * | 2001-07-19 | 2003-01-31 | Matsushita Electric Ind Co Ltd | 半導体集積回路装置 |
JP2004207662A (ja) * | 2002-12-26 | 2004-07-22 | Renesas Technology Corp | 半導体集積回路及び電子機器 |
JP2005123533A (ja) * | 2003-10-20 | 2005-05-12 | Nippon Telegr & Teleph Corp <Ntt> | 静電放電保護回路 |
JP4783059B2 (ja) * | 2005-05-13 | 2011-09-28 | ローム株式会社 | 半導体装置及びこれを用いた光電変換装置、スキャナ |
-
2007
- 2007-10-10 JP JP2007264802A patent/JP4856609B2/ja active Active
Also Published As
Publication number | Publication date |
---|---|
JP2009095171A (ja) | 2009-04-30 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US11128130B2 (en) | Protection circuit with bidirectional surge protection | |
CN112088476B (zh) | 具有集成vbus到cc短路保护的usb type-c/pd控制器 | |
KR100992712B1 (ko) | 집적 회로, 집적 회로 칩 및 그 집적 회로의 적어도 하나의컴포넌트를 보호하기 위한 시스템 | |
EP3499724B1 (en) | Output driver with overvoltage protection | |
US7835124B2 (en) | Short circuit and over-voltage protection for a data bus | |
US8693152B2 (en) | Power over ethernet powered device circuit and electrostatic discharge protection circuit thereof | |
JP4291359B2 (ja) | I2c通信方式を利用して通信するカメラモジュール | |
JP4800417B2 (ja) | サージ防止回路、ローカル・エリア・ネットワーク・コネクタ、及びネットワーク・モジュール | |
KR100855265B1 (ko) | 정전기 방전 보호 회로 | |
JP6003681B2 (ja) | サージ保護回路、及び、通信装置 | |
WO2016044550A1 (en) | Overvoltage protection for nfc devices | |
JP4856609B2 (ja) | 通信モジュール | |
US10411690B2 (en) | Low side output driver reverse current protection circuit | |
US8773823B2 (en) | Overvoltage protection structure for a differential link | |
US11183838B2 (en) | Power sourcing equipment and power over ethernet system | |
US20200264643A1 (en) | Controller area network (can) transceiver | |
US10396068B2 (en) | Electrostatic discharge protection device | |
US8373951B2 (en) | Universal serial bus protection circuit | |
JP5750326B2 (ja) | 電子機器の保護回路 | |
US6597554B2 (en) | Overvoltage protector of a burn-in board | |
EP3739709B1 (en) | Over current and electrostatic discharge protection system having high operational endurance | |
US20150200539A1 (en) | Transient voltage suppressor | |
US9030247B2 (en) | High voltage tolerant input/output circuit | |
ES2768623T3 (es) | Sistema de bus para la configuración de interfaces de comunicación en el vehículo y procedimiento para fabricar dicho sistema de bus | |
US9531370B1 (en) | Transmitter, common mode transceiver using the same, and operating method thereof |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20091208 |
|
A977 | Report on retrieval |
Free format text: JAPANESE INTERMEDIATE CODE: A971007 Effective date: 20110929 |
|
TRDD | Decision of grant or rejection written | ||
A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20111004 |
|
A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 |
|
A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20111028 |
|
FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20141104 Year of fee payment: 3 |
|
R150 | Certificate of patent or registration of utility model |
Free format text: JAPANESE INTERMEDIATE CODE: R150 Ref document number: 4856609 Country of ref document: JP Free format text: JAPANESE INTERMEDIATE CODE: R150 |
|
S531 | Written request for registration of change of domicile |
Free format text: JAPANESE INTERMEDIATE CODE: R313531 |
|
S533 | Written request for registration of change of name |
Free format text: JAPANESE INTERMEDIATE CODE: R313533 |
|
R350 | Written notification of registration of transfer |
Free format text: JAPANESE INTERMEDIATE CODE: R350 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
S533 | Written request for registration of change of name |
Free format text: JAPANESE INTERMEDIATE CODE: R313533 |
|
R350 | Written notification of registration of transfer |
Free format text: JAPANESE INTERMEDIATE CODE: R350 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |