JPS6431364A - Heater driving device for electric heater - Google Patents
Heater driving device for electric heaterInfo
- 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
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.
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)
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)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5556396A (en) * | 1978-10-19 | 1980-04-25 | Tokyo Shibaura Electric Co | High frequency heater |
-
1987
- 1987-07-27 JP JP62188333A patent/JPH0754737B2/en not_active Expired - Fee Related
Patent Citations (1)
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)
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 |