JPH01131874U - - Google Patents
Info
- Publication number
- JPH01131874U JPH01131874U JP2596088U JP2596088U JPH01131874U JP H01131874 U JPH01131874 U JP H01131874U JP 2596088 U JP2596088 U JP 2596088U JP 2596088 U JP2596088 U JP 2596088U JP H01131874 U JPH01131874 U JP H01131874U
- Authority
- JP
- Japan
- Prior art keywords
- output
- ignition
- circuit
- output signals
- ignition coils
- 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 3
- 238000010586 diagram Methods 0.000 description 4
Landscapes
- Ignition Installations For Internal Combustion Engines (AREA)
Description
第１図はこの考案の一実施例による点火信号検
出回路図、第２図は第１図の各部の動作波形図、
第３図は従来の点火信号検出回路図、第４図は点
火信号回路の出力波形図である。
図において、８……第１の抵抗、９……第２の
抵抗、１２……第３の抵抗、１３……パルス発生
回路、１４……第１のダイオード、１５……第２
のダイオード、２０……点火装置である。なお、
各図中同一符号は同一又は相当部分を示す。
Fig. 1 is an ignition signal detection circuit diagram according to an embodiment of this invention, Fig. 2 is an operation waveform diagram of each part of Fig. 1,
FIG. 3 is a conventional ignition signal detection circuit diagram, and FIG. 4 is an output waveform diagram of the ignition signal circuit. In the figure, 8...first resistor, 9...second resistor, 12...third resistor, 13...pulse generation circuit, 14...first diode, 15...second
20... is an ignition device. In addition,
The same reference numerals in each figure indicate the same or corresponding parts.
Claims (1)
する各パワートランジスタを有する点火装置から
の複数の出力信号の論理和を取るための抵抗とダ
イオードの直列回路を複数含むオア回路と、この
オア回路の出力側に接続される抵抗と、前記オア
回路と接続される出力回路とを備え、前記ダイオ
ードの各陰極を接続し、前記各出力信号のピーク
が他の出力信号の電圧レベルに影響を及ぼさない
ようにしたことを特徴とする点火信号検出回路。 An OR circuit including a plurality of series circuits of resistors and diodes for taking the logical sum of a plurality of output signals from an ignition device having a plurality of ignition coils and power transistors that control the primary side current of the ignition coils intermittently; A resistor connected to the output side and an output circuit connected to the OR circuit, each cathode of the diode being connected so that the peak of each output signal does not affect the voltage level of other output signals. An ignition signal detection circuit characterized in that:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2596088U JPH01131874U (en) | 1988-03-01 | 1988-03-01 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2596088U JPH01131874U (en) | 1988-03-01 | 1988-03-01 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01131874U true JPH01131874U (en) | 1989-09-07 |
Family
ID=31247148
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2596088U Pending JPH01131874U (en) | 1988-03-01 | 1988-03-01 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01131874U (en) |
-
1988
- 1988-03-01 JP JP2596088U patent/JPH01131874U/ja active Pending
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