JPH0720975Y2 - 電話機の静電気破壊防止装置 - Google Patents
電話機の静電気破壊防止装置Info
- Publication number
- JPH0720975Y2 JPH0720975Y2 JP8885389U JP8885389U JPH0720975Y2 JP H0720975 Y2 JPH0720975 Y2 JP H0720975Y2 JP 8885389 U JP8885389 U JP 8885389U JP 8885389 U JP8885389 U JP 8885389U JP H0720975 Y2 JPH0720975 Y2 JP H0720975Y2
- Authority
- JP
- Japan
- Prior art keywords
- telephone
- ground
- circuit
- capacitors
- full
- 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.)
- Expired - Lifetime
Links
Landscapes
- Elimination Of Static Electricity (AREA)
- Telephone Set Structure (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8885389U JPH0720975Y2 (ja) | 1989-07-27 | 1989-07-27 | 電話機の静電気破壊防止装置 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8885389U JPH0720975Y2 (ja) | 1989-07-27 | 1989-07-27 | 電話機の静電気破壊防止装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH0328847U JPH0328847U (US20100268047A1-20101021-C00003.png) | 1991-03-22 |
JPH0720975Y2 true JPH0720975Y2 (ja) | 1995-05-15 |
Family
ID=31638446
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP8885389U Expired - Lifetime JPH0720975Y2 (ja) | 1989-07-27 | 1989-07-27 | 電話機の静電気破壊防止装置 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0720975Y2 (US20100268047A1-20101021-C00003.png) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2007274689A (ja) * | 2006-03-31 | 2007-10-18 | Lifescan Scotland Ltd | 携帯型電子機器を静電気放電から保護するためのデバイス及び方法 |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5004742B2 (ja) * | 2007-10-05 | 2012-08-22 | 三洋電機株式会社 | 電源装置 |
-
1989
- 1989-07-27 JP JP8885389U patent/JPH0720975Y2/ja not_active Expired - Lifetime
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2007274689A (ja) * | 2006-03-31 | 2007-10-18 | Lifescan Scotland Ltd | 携帯型電子機器を静電気放電から保護するためのデバイス及び方法 |
Also Published As
Publication number | Publication date |
---|---|
JPH0328847U (US20100268047A1-20101021-C00003.png) | 1991-03-22 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP0817349A3 (en) | High voltage protection circuits | |
US5532528A (en) | Converter including direct current detection | |
JPH0720975Y2 (ja) | 電話機の静電気破壊防止装置 | |
CN106019170B (zh) | 一种电源适配器检测装置 | |
CA1215179A (en) | Versatile input circuit for sensing the status of a voltage input over a wide range of voltage levels and waveforms | |
JPS61167264A (ja) | 停電検出回路 | |
JPH0741234Y2 (ja) | 電話機用ドアホン接続回路 | |
US6665397B1 (en) | Telephone signal detecting circuit | |
JP2546098Y2 (ja) | 充電回路 | |
JPH1075571A (ja) | 混成集積回路装置 | |
KR900002020Y1 (ko) | 전자볼륨직접회로의 오동작 방지회로 | |
JP3629912B2 (ja) | Dc/dcコンバータ及びそれを用いた通信装置 | |
JP3253469B2 (ja) | スイッチング電源装置 | |
JP4143152B2 (ja) | 誤動作防止回路 | |
JPH0323803Y2 (US20100268047A1-20101021-C00003.png) | ||
KR200153714Y1 (ko) | 리셋 장치 | |
JPH08275384A (ja) | 電源装置 | |
JPS5949055A (ja) | 通話電流供給回路 | |
KR0129481Y1 (ko) | 전원 공급 장치의 과전압 차단회로 | |
JPH084774Y2 (ja) | リンガー検出装置 | |
SU1713054A1 (ru) | Преобразователь переменного напр жени в посто нное | |
GB2233171A (en) | A.C. to D.C. converter | |
JPH03855Y2 (US20100268047A1-20101021-C00003.png) | ||
JP2656850B2 (ja) | 交流信号監視回路 | |
JPS5941144B2 (ja) | 電流不平衡検出装置 |