JPS58101537U - 局電源式電話機におけるスイッチング素子の動作閉塞回路 - Google Patents

局電源式電話機におけるスイッチング素子の動作閉塞回路

Info

Publication number
JPS58101537U
JPS58101537U JP19755981U JP19755981U JPS58101537U JP S58101537 U JPS58101537 U JP S58101537U JP 19755981 U JP19755981 U JP 19755981U JP 19755981 U JP19755981 U JP 19755981U JP S58101537 U JPS58101537 U JP S58101537U
Authority
JP
Japan
Prior art keywords
switching element
blocking circuit
switching elements
circuit
operation blocking
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
Application number
JP19755981U
Other languages
English (en)
Japanese (ja)
Other versions
JPH0221812Y2 (ko
Inventor
木下　利治
早坂　年昭
Original Assignee
株式会社田村電機製作所
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 株式会社田村電機製作所 filed Critical 株式会社田村電機製作所
Priority to JP19755981U priority Critical patent/JPS58101537U/ja
Publication of JPS58101537U publication Critical patent/JPS58101537U/ja
Application granted granted Critical
Publication of JPH0221812Y2 publication Critical patent/JPH0221812Y2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Electronic Switches (AREA)
  • Devices For Supply Of Signal Current (AREA)
JP19755981U 1981-12-29 1981-12-29 局電源式電話機におけるスイッチング素子の動作閉塞回路 Granted JPS58101537U (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP19755981U JPS58101537U (ja) 1981-12-29 1981-12-29 局電源式電話機におけるスイッチング素子の動作閉塞回路

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP19755981U JPS58101537U (ja) 1981-12-29 1981-12-29 局電源式電話機におけるスイッチング素子の動作閉塞回路

Publications (2)

Publication Number Publication Date
JPS58101537U true JPS58101537U (ja) 1983-07-11
JPH0221812Y2 JPH0221812Y2 (ko) 1990-06-12

Family

ID=30110774

Family Applications (1)

Application Number Title Priority Date Filing Date
JP19755981U Granted JPS58101537U (ja) 1981-12-29 1981-12-29 局電源式電話機におけるスイッチング素子の動作閉塞回路

Country Status (1)

Country Link
JP (1) JPS58101537U (ko)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5282179A (en) * 1975-12-29 1977-07-09 Fujitsu Ltd Transistor protection circuit
JPS54157075A (en) * 1978-05-31 1979-12-11 Omron Tateisi Electronics Co Contactless switch

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5282179A (en) * 1975-12-29 1977-07-09 Fujitsu Ltd Transistor protection circuit
JPS54157075A (en) * 1978-05-31 1979-12-11 Omron Tateisi Electronics Co Contactless switch

Also Published As

Publication number Publication date
JPH0221812Y2 (ko) 1990-06-12

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