JPS6117887U - Self-diagnosis device for load drive circuits in in-vehicle electronic equipment - Google Patents
Self-diagnosis device for load drive circuits in in-vehicle electronic equipmentInfo
- Publication number
- JPS6117887U JPS6117887U JP10073184U JP10073184U JPS6117887U JP S6117887 U JPS6117887 U JP S6117887U JP 10073184 U JP10073184 U JP 10073184U JP 10073184 U JP10073184 U JP 10073184U JP S6117887 U JPS6117887 U JP S6117887U
- Authority
- JP
- Japan
- Prior art keywords
- vehicle electronic
- self
- load drive
- diagnosis device
- electronic equipment
- 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
- Dc-Dc Converters (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
【図面の簡単な説明】
第１図は本考案の構成を示すブロック図、第２図は第１
図の場合の論理表図、第３図は本考案の一実施例を示す
回路図、第４図は同上のフローチャート、第５図は他の
実施例を示す回路図、第６図は他の実施例を示す回路図
である。
１・・・負荷、２ａ，２ｂ・・・通電ライン、３・・・
制御回路ユニット、４，４′・・・トランジスタ、５・
・・第１の検出手段、６・・・第２の検出手段、７・・
・判定手段、１１・・・マイクロコンピュータ、１２・
・・Ａ／Ｄ変換器。[Brief explanation of the drawings] Figure 1 is a block diagram showing the configuration of the present invention, and Figure 2 is a block diagram showing the configuration of the present invention.
3 is a circuit diagram showing one embodiment of the present invention, FIG. 4 is a flowchart of the same as above, FIG. 5 is a circuit diagram showing another embodiment, and FIG. 6 is a circuit diagram showing another embodiment of the present invention. FIG. 2 is a circuit diagram showing an example. 1... Load, 2a, 2b... Current carrying line, 3...
Control circuit unit, 4, 4'...transistor, 5.
...First detection means, 6...Second detection means, 7...
- Determination means, 11... microcomputer, 12.
...A/D converter.
Claims (1)
信号によりスイッチング制御されるトランジスタを備え
る車載電子機器の負荷駆動回路において、前記トランジ
スタへの制御信号の論理レベルを検出する第１の検出手
段と、前記トランジスタと負荷との接続点の電位の論理
レベルを検出する第２の検出手段と、これらの検出手段
により検出される．論理レベルの組合わせから異常の有
無を判定する判定手段とを設けてなる車載電子機器にお
ける負荷駆動回路の自己診断装置。In a load drive circuit for an in-vehicle electronic device that includes a transistor that is interposed in a current carrying line of a load and whose switching is controlled by a control signal within a control circuit unit, a first detection means for detecting a logic level of a control signal to the transistor; , second detection means for detecting the logic level of the potential at the connection point between the transistor and the load; A self-diagnosis device for a load drive circuit in an in-vehicle electronic device, comprising a determination means for determining the presence or absence of an abnormality based on a combination of logic levels.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10073184U JPS6117887U (en) | 1984-07-05 | 1984-07-05 | Self-diagnosis device for load drive circuits in in-vehicle electronic equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10073184U JPS6117887U (en) | 1984-07-05 | 1984-07-05 | Self-diagnosis device for load drive circuits in in-vehicle electronic equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6117887U true JPS6117887U (en) | 1986-02-01 |
Family
ID=30660178
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10073184U Pending JPS6117887U (en) | 1984-07-05 | 1984-07-05 | Self-diagnosis device for load drive circuits in in-vehicle electronic equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6117887U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008010186A (en) * | 2006-06-27 | 2008-01-17 | Kuroi Electric Co Ltd | Discharge lamp lighting circuit |
| JP2011090979A (en) * | 2009-10-26 | 2011-05-06 | Panasonic Corp | Induction cooking device |
-
1984
- 1984-07-05 JP JP10073184U patent/JPS6117887U/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008010186A (en) * | 2006-06-27 | 2008-01-17 | Kuroi Electric Co Ltd | Discharge lamp lighting circuit |
| JP4553872B2 (en) * | 2006-06-27 | 2010-09-29 | クロイ電機株式会社 | Discharge lamp lighting circuit |
| JP2011090979A (en) * | 2009-10-26 | 2011-05-06 | Panasonic Corp | Induction cooking device |
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