JPH0423143U - - Google Patents
Info
- Publication number
- JPH0423143U JPH0423143U JP6367890U JP6367890U JPH0423143U JP H0423143 U JPH0423143 U JP H0423143U JP 6367890 U JP6367890 U JP 6367890U JP 6367890 U JP6367890 U JP 6367890U JP H0423143 U JPH0423143 U JP H0423143U
- Authority
- JP
- Japan
- Prior art keywords
- temperature
- heat radiation
- control
- heater
- temperature detection
- 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
- 238000001514 detection method Methods 0.000 claims description 5
- 239000004065 semiconductor Substances 0.000 claims description 5
- 230000005855 radiation Effects 0.000 claims 4
- 230000017525 heat dissipation Effects 0.000 description 4
- 230000003287 optical effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000003321 amplification Effects 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
Description
第１図は本考案に係る半導体素子の放熱制御装
置を複写機の光学系制御用モータのドライブ用ト
ランジスタの制御に応用した実施例を示す回路図
、第２図は放熱台への加熱用のヒータと温度検出
素子の組み込み状態を示す断面図、第３図は第１
図の例における放熱台の温度制御、定着ヒータの
温度制御を示すグラフ、第４図は従来の半導体素
子の放熱構造を示す断面図、そして第５図はトラ
ンジスタの電流増幅率と温度との関係を示すグラ
フである。
１……光学系駆動用モータ、２……モータ駆動
用トランジスタ、３……放熱台ヒータ、４……放
熱台温度検出用サーミスタ、５……定着ヒータ、
６……定着温度検出用サーミスタ、７……複写機
の制御回路部、１０……パワートランジスタ、１
１……放熱台、１２……基板。
Fig. 1 is a circuit diagram showing an embodiment in which the heat dissipation control device for a semiconductor element according to the present invention is applied to control a drive transistor of a motor for controlling an optical system of a copying machine, and Fig. 2 is a circuit diagram showing an embodiment in which a heat dissipation control device for a semiconductor element according to the present invention is applied to control a drive transistor of a motor for controlling an optical system of a copying machine. A cross-sectional view showing the assembled state of the heater and temperature detection element, Figure 3 is the same as Figure 1.
A graph showing the temperature control of the heat dissipation stand and the temperature control of the fixing heater in the example shown in the figure, Fig. 4 is a cross-sectional view showing the heat dissipation structure of a conventional semiconductor element, and Fig. 5 is the relationship between the current amplification factor of the transistor and the temperature. This is a graph showing. 1... Optical system drive motor, 2... Motor drive transistor, 3... Heat sink heater, 4... Heat sink temperature detection thermistor, 5... Fixing heater,
6...Fusing temperature detection thermistor, 7...Control circuit section of copying machine, 10...Power transistor, 1
1... Heat sink, 12... Board.
Claims (1)
ータと温度検出素子とを組み込み、該温度検出素
子が検出した上記放熱台の温度をもとに制御手段
により上記ヒータを駆動して上記放熱台の温度を
一定とするよう制御することを特徴とする半導体
素子の放熱制御装置。 A heater and a temperature detection element are incorporated into a heat radiation stand to which a semiconductor element is attached, and the heater is driven by a control means based on the temperature of the heat radiation stand detected by the temperature detection element to control the temperature of the heat radiation stand. A heat radiation control device for a semiconductor device, characterized by controlling the temperature to be constant.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6367890U JPH0423143U (en) | 1990-06-15 | 1990-06-15 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6367890U JPH0423143U (en) | 1990-06-15 | 1990-06-15 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0423143U true JPH0423143U (en) | 1992-02-26 |
Family
ID=31593943
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6367890U Pending JPH0423143U (en) | 1990-06-15 | 1990-06-15 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0423143U (en) |
-
1990
- 1990-06-15 JP JP6367890U patent/JPH0423143U/ja active Pending
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