JPS55115726A - Switching circuit - Google Patents

Switching circuit

Info

Publication number
JPS55115726A
JPS55115726A JP2373679A JP2373679A JPS55115726A JP S55115726 A JPS55115726 A JP S55115726A JP 2373679 A JP2373679 A JP 2373679A JP 2373679 A JP2373679 A JP 2373679A JP S55115726 A JPS55115726 A JP S55115726A
Authority
JP
Japan
Prior art keywords
contact
zero
load
closed
thyristor
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
JP2373679A
Other languages
Japanese (ja)
Other versions
JPS601782B2 (en
Inventor
Hideki Fukusono
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.)
Panasonic Electric Works Co Ltd
Original Assignee
Matsushita Electric Works 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 Matsushita Electric Works Ltd filed Critical Matsushita Electric Works Ltd
Priority to JP2373679A priority Critical patent/JPS601782B2/en
Publication of JPS55115726A publication Critical patent/JPS55115726A/en
Publication of JPS601782B2 publication Critical patent/JPS601782B2/en
Expired 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
    • H03K17/13—Modifications for switching at zero crossing
    • H03K17/136—Modifications for switching at zero crossing in thyristor switches

Abstract

PURPOSE:To lower the current changing rate and to reduce the noise, by controlling the three terminal thyristor at zero-cross and turning on and off the thyristor near zero point of load current. CONSTITUTION:When the input signal is inputted to the input side terminal 1, the relay 2 is operated and the contact 2a is closed. Then, trigger current flows to the thyristor 5 at the vicinity of zero with the zero-cross 7. When the contact 2b is closed with the delay a half cycle or more since the contact 2a is closed, the gate current flows in the path of the power supply 3-load 4-resistor 8-contact 2b- gate terminal G, independently of the zero-cross 7. The contact 2c closes with further delay. Accordingly, no arc of rushing current is produced at the contact 2c. Further, the load is run in the path of the power supply 3-load 4-contact 2c.
JP2373679A 1979-02-28 1979-02-28 switching circuit Expired JPS601782B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2373679A JPS601782B2 (en) 1979-02-28 1979-02-28 switching circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2373679A JPS601782B2 (en) 1979-02-28 1979-02-28 switching circuit

Publications (2)

Publication Number Publication Date
JPS55115726A true JPS55115726A (en) 1980-09-05
JPS601782B2 JPS601782B2 (en) 1985-01-17

Family

ID=12118584

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2373679A Expired JPS601782B2 (en) 1979-02-28 1979-02-28 switching circuit

Country Status (1)

Country Link
JP (1) JPS601782B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS583322A (en) * 1981-06-29 1983-01-10 Matsushita Electric Works Ltd Relay circuit

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS583322A (en) * 1981-06-29 1983-01-10 Matsushita Electric Works Ltd Relay circuit

Also Published As

Publication number Publication date
JPS601782B2 (en) 1985-01-17

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