JPS54144860A - Non-contact switch - Google Patents

Non-contact switch

Info

Publication number
JPS54144860A
JPS54144860A JP5275778A JP5275778A JPS54144860A JP S54144860 A JPS54144860 A JP S54144860A JP 5275778 A JP5275778 A JP 5275778A JP 5275778 A JP5275778 A JP 5275778A JP S54144860 A JPS54144860 A JP S54144860A
Authority
JP
Japan
Prior art keywords
power supply
circuit
gate
surge
rich
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
Application number
JP5275778A
Other languages
Japanese (ja)
Inventor
Yasuo Matsuda
Kazuo Honda
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP5275778A priority Critical patent/JPS54144860A/en
Publication of JPS54144860A publication Critical patent/JPS54144860A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
    • H03K17/51—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used
    • H03K17/56—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices
    • H03K17/72—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices having more than two PN junctions; having more than three electrodes; having more than one electrode connected to the same conductivity region

Landscapes

  • Thyristor Switches And Gates (AREA)

Abstract

PURPOSE:To establish the higher current switch usable both for AC and DC rich in general purpose and low cost, by selecting one of AC or DC power supply as the power supply, and by separating the OFF-gate circuit of the gate turn off thyristor when the AC power supply is selected. CONSTITUTION:When the power supply is DC1, the OFF-gate circuit 47 of the gate drive circuit 33 is not separated to function the gate turn-off thyristor GTO 32, and when the power supply is AC11, the GT032 is naturally turned off by separating the circuit 47. If the restriction of surge due to load energy should be considered, the load 2 is provided with two surge restriction circuits 6 and 21 for DC and Ac, and the selector switch 31 selecting one surge circuit is provided, depending on the power supply, whether AC or DC. As a result, the high current type switch both for AC and DC can be obrained, which is rich in general purpose and low cost.
JP5275778A 1978-05-04 1978-05-04 Non-contact switch Pending JPS54144860A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5275778A JPS54144860A (en) 1978-05-04 1978-05-04 Non-contact switch

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5275778A JPS54144860A (en) 1978-05-04 1978-05-04 Non-contact switch

Publications (1)

Publication Number Publication Date
JPS54144860A true JPS54144860A (en) 1979-11-12

Family

ID=12923751

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5275778A Pending JPS54144860A (en) 1978-05-04 1978-05-04 Non-contact switch

Country Status (1)

Country Link
JP (1) JPS54144860A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4568838A (en) * 1981-05-29 1986-02-04 Hitachi, Ltd. Control circuit for a semiconductor element with a control electrode

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4568838A (en) * 1981-05-29 1986-02-04 Hitachi, Ltd. Control circuit for a semiconductor element with a control electrode

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