JPS5992908U - temperature control device - Google Patents
temperature control deviceInfo
- Publication number
- JPS5992908U JPS5992908U JP18822982U JP18822982U JPS5992908U JP S5992908 U JPS5992908 U JP S5992908U JP 18822982 U JP18822982 U JP 18822982U JP 18822982 U JP18822982 U JP 18822982U JP S5992908 U JPS5992908 U JP S5992908U
- Authority
- JP
- Japan
- Prior art keywords
- detection circuit
- output
- temperature
- zero
- heating elements
- 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
Landscapes
- Control Of Temperature (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図は従来例を示す回路図、第２図はこの考案の実施
例を示す回路図、第３図は同実施例における温度変化に
対する総発熱量の変化を示すグラフである。
１１・・・交流電源、１２，１３，１４．１５・・・双
方向性３端子サイリスタ、１６．１７．１８゜１９・・
・発熱体、２８・・・ゼロクロス検出回路、’３０・・
・感熱素子、３１・・・マイクロコンピュータ。FIG. 1 is a circuit diagram showing a conventional example, FIG. 2 is a circuit diagram showing an embodiment of this invention, and FIG. 3 is a graph showing changes in total heat generation amount with respect to temperature changes in the same embodiment. 11... AC power supply, 12, 13, 14. 15... Bidirectional 3-terminal thyristor, 16.17.18゜19...
・Heating element, 28... Zero cross detection circuit, '30...
- Heat sensitive element, 31... microcomputer.
Claims (1)
子を介して接続された複数の発熱体と、上記交流電源波
形のゼロクロス点を検出するゼロクロス検出回路と、周
囲温度を検出して温度に対応した電圧を出力する温度検
出回路と、この温度検出回路出力及び上記ゼロクロス検
出回路出力をそれぞれ入力され、上記温度検出回路出力
のレベルに応じて上記交流電源波形のゼロクロス点に同
期して上記各半導体スイッチング素子の１又は複数を選
択的にスイッチング動作する手段とを設け、周囲温度の
変化に応じて前記各発熱体による総発熱量を段階的に可
変することを特徴とする温度制御装置。An AC power supply, a plurality of heating elements connected to this power supply through semiconductor switching elements, a zero-cross detection circuit that detects zero-crossing points of the AC power waveform, and an ambient temperature that detects a voltage corresponding to the temperature. A temperature detection circuit to output, the output of this temperature detection circuit and the output of the zero cross detection circuit are respectively input, and the output of each of the semiconductor switching elements is synchronized with the zero cross point of the AC power waveform according to the level of the output of the temperature detection circuit. What is claimed is: 1. A temperature control device comprising means for selectively switching one or more of the heating elements, and varying the total amount of heat generated by each of the heating elements stepwise in accordance with changes in ambient temperature.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18822982U JPS5992908U (en) | 1982-12-13 | 1982-12-13 | temperature control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18822982U JPS5992908U (en) | 1982-12-13 | 1982-12-13 | temperature control device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5992908U true JPS5992908U (en) | 1984-06-23 |
Family
ID=30406115
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18822982U Pending JPS5992908U (en) | 1982-12-13 | 1982-12-13 | temperature control device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5992908U (en) |
-
1982
- 1982-12-13 JP JP18822982U patent/JPS5992908U/en active Pending
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