JPH03100398U - - Google Patents
Info
- Publication number
- JPH03100398U JPH03100398U JP618990U JP618990U JPH03100398U JP H03100398 U JPH03100398 U JP H03100398U JP 618990 U JP618990 U JP 618990U JP 618990 U JP618990 U JP 618990U JP H03100398 U JPH03100398 U JP H03100398U
- Authority
- JP
- Japan
- Prior art keywords
- semiconductor element
- incandescent lamp
- semiconductor device
- semiconductor
- lamp
- 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
- 239000004065 semiconductor Substances 0.000 claims 7
- 230000002159 abnormal effect Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 1
Description
図面は本考案実施例の回路図である。 The drawing is a circuit diagram of an embodiment of the present invention.
Claims (1)
源に接続すると共に上記半導体素子の電流制御を
行う第２の半導体素子を設けて、前記第１の半導
体素子におけるコレクタ・エミツタ間の電圧が前
記白熱ランプの故障等で異常に上昇したとき、こ
れを検出して上記第２の半導体素子で第１の半導
体素子を遮断状態にする回路を設けた白熱ランプ
駆動用半導体素子保護装置。 A second semiconductor element is provided which connects the incandescent lamp to a DC power supply via the first semiconductor element and controls the current of the semiconductor element, so that the voltage between the collector and the emitter of the first semiconductor element is adjusted to the incandescent lamp. A semiconductor device protection device for driving an incandescent lamp, comprising a circuit that detects an abnormal rise in temperature due to a lamp failure or the like and causes the second semiconductor device to cut off the first semiconductor device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP618990U JPH03100398U (en) | 1990-01-29 | 1990-01-29 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP618990U JPH03100398U (en) | 1990-01-29 | 1990-01-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH03100398U true JPH03100398U (en) | 1991-10-21 |
Family
ID=31509868
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP618990U Pending JPH03100398U (en) | 1990-01-29 | 1990-01-29 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03100398U (en) |
-
1990
- 1990-01-29 JP JP618990U patent/JPH03100398U/ja active Pending