JPS6459512A - Temperature controller - Google Patents
Temperature controllerInfo
- Publication number
- JPS6459512A JPS6459512A JP21689087A JP21689087A JPS6459512A JP S6459512 A JPS6459512 A JP S6459512A JP 21689087 A JP21689087 A JP 21689087A JP 21689087 A JP21689087 A JP 21689087A JP S6459512 A JPS6459512 A JP S6459512A
- Authority
- JP
- Japan
- Prior art keywords
- disconnection
- electrode wire
- pulse
- zero volt
- generating means
- 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
Links
Abstract
PURPOSE:To detect the disconnection of an electrode wire with remarkably high sensitivity, by providing a disconnection detection circuit which detects the disconnection of the electrode wire by phase relation with the pulse of a zero volt pulse generating means. CONSTITUTION:When the disconnection of the electrode wire 51 is generated, the influence of low resistance components in first and second heating resistors are eliminated in the positive half cycle of an AC power source 13, and a current phase advances by the influence of the capacitance component of temperature thermosensible resin 5, therefore, a pulse waveform whose phase leads by that of the zero volt pulse generating means 75 can be obtained. A control means 76 detects a phase difference between the zero volt pulse generating means 75 and a disconnection detecting means 104, or reads the state of the pulse of the disconnection detecting means 104 after a prescribed time in a digital way from the pulse of the zero volt pulse generating means 75, and detects the disconnection of the electrode wire 51. And the control means 76 holds the stoppage of the driving of a transistor 40 in a driving means.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP21689087A JPS6459512A (en) | 1987-08-31 | 1987-08-31 | Temperature controller |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP21689087A JPS6459512A (en) | 1987-08-31 | 1987-08-31 | Temperature controller |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6459512A true JPS6459512A (en) | 1989-03-07 |
Family
ID=16695513
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP21689087A Pending JPS6459512A (en) | 1987-08-31 | 1987-08-31 | Temperature controller |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6459512A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4881397B2 (en) * | 2006-02-22 | 2012-02-22 | エルジー ハウスホールド アンド ヘルスケア リミテッド | Cosmetic container |
-
1987
- 1987-08-31 JP JP21689087A patent/JPS6459512A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4881397B2 (en) * | 2006-02-22 | 2012-02-22 | エルジー ハウスホールド アンド ヘルスケア リミテッド | Cosmetic container |
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