JPS6431364A - Heater driving device for electric heater - Google Patents

Heater driving device for electric heater

Info

Publication number
JPS6431364A
JPS6431364A JP18833387A JP18833387A JPS6431364A JP S6431364 A JPS6431364 A JP S6431364A JP 18833387 A JP18833387 A JP 18833387A JP 18833387 A JP18833387 A JP 18833387A JP S6431364 A JPS6431364 A JP S6431364A
Authority
JP
Japan
Prior art keywords
relay
triac
driving circuit
heater
turned
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
JP18833387A
Other languages
Japanese (ja)
Other versions
JPH0754737B2 (en
Inventor
Katsuaki Suzuki
Masafumi Ishikawa
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 Holdings Corp
Original Assignee
Matsushita Electric Industrial Co 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 Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP62188333A priority Critical patent/JPH0754737B2/en
Publication of JPS6431364A publication Critical patent/JPS6431364A/en
Publication of JPH0754737B2 publication Critical patent/JPH0754737B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Landscapes

  • Control Of Resistance Heating (AREA)
  • Keying Circuit Devices (AREA)

Abstract

PURPOSE:To prevent the arc discharge at a relay contact by controlling the opening or closing timing of a relay and a TRIAC (triode AC switch) connected to both ends of a heater so that the relay precedes in the on-operation and the TRIAC precedes in the off-operation. CONSTITUTION:A relay driving circuit 4 is operated by a drive signal generating means 7 to turn a relay contact 2 on. A TRIAC driving circuit 5 is operated by the signal slightly delayed by the first delay means 8, and a TRIAC 3 is turned on late. When the drive signal generating means 7 then generates the off signal, the TRIAC driving circuit 5 is first turned off, then the relay driving circuit 4 is turned off by being slightly delayed by the second delay means 9. The arc discharge when the relay contact 2 is opened or closed is prevented according to this constitution, the reliability is remarkably improved, and a relay contact with a small capacity can be utilized.
JP62188333A 1987-07-27 1987-07-27 Electric heater heater drive Expired - Fee Related JPH0754737B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62188333A JPH0754737B2 (en) 1987-07-27 1987-07-27 Electric heater heater drive

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62188333A JPH0754737B2 (en) 1987-07-27 1987-07-27 Electric heater heater drive

Publications (2)

Publication Number Publication Date
JPS6431364A true JPS6431364A (en) 1989-02-01
JPH0754737B2 JPH0754737B2 (en) 1995-06-07

Family

ID=16221779

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62188333A Expired - Fee Related JPH0754737B2 (en) 1987-07-27 1987-07-27 Electric heater heater drive

Country Status (1)

Country Link
JP (1) JPH0754737B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009153274A (en) * 2007-12-19 2009-07-09 Sanyo Electric Co Ltd Vehicular power supply unit
JP2011113809A (en) * 2009-11-26 2011-06-09 Mitsubishi Electric Corp Heater drive circuit

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5556396A (en) * 1978-10-19 1980-04-25 Tokyo Shibaura Electric Co High frequency heater

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5556396A (en) * 1978-10-19 1980-04-25 Tokyo Shibaura Electric Co High frequency heater

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009153274A (en) * 2007-12-19 2009-07-09 Sanyo Electric Co Ltd Vehicular power supply unit
JP2011113809A (en) * 2009-11-26 2011-06-09 Mitsubishi Electric Corp Heater drive circuit

Also Published As

Publication number Publication date
JPH0754737B2 (en) 1995-06-07

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Legal Events

Date Code Title Description
LAPS Cancellation because of no payment of annual fees