JPS54140029A - Contactless igniting device - Google Patents
Contactless igniting deviceInfo
- Publication number
- JPS54140029A JPS54140029A JP4773578A JP4773578A JPS54140029A JP S54140029 A JPS54140029 A JP S54140029A JP 4773578 A JP4773578 A JP 4773578A JP 4773578 A JP4773578 A JP 4773578A JP S54140029 A JPS54140029 A JP S54140029A
- Authority
- JP
- Japan
- Prior art keywords
- state
- transistor
- current flows
- voltage
- generated
- 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
- Electrical Control Of Ignition Timing (AREA)
Abstract
PURPOSE: To provide a contactless igniting device wherein an angle of delay of a constant value is obtained by an AC generator and a simple circuit using a small capacitor regardless of the rotational speed of an engine.
CONSTITUTION: In the case where switch means 21 is closed, an AC voltage generated by an AC generator 1 is applied to a transistor 3 through a resistor 2. When a primary current flows to an igniting coil 14 in a state where the AC voltage is in negative state and the voltage is converted from the negative state to the positive state, the primary current is interrupted and a spark is generated in an ignition plug 15. In the case where switch means 21 is opened, the AC signal is converted from the negative state to positive state, and a charge current flows in a capacitor 16 until it reaches the positive peak. While the charge current flows, the transistor 3 is connected in the interrupted state. When the AC signal passes through the positive peak, the transistor 3 becomes conductive, and a spark is generated in the ignition plug 15. For this reason, the ignition timing is delayed at a predetermined angle.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4773578A JPS54140029A (en) | 1978-04-24 | 1978-04-24 | Contactless igniting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4773578A JPS54140029A (en) | 1978-04-24 | 1978-04-24 | Contactless igniting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS54140029A true JPS54140029A (en) | 1979-10-30 |
Family
ID=12783591
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4773578A Pending JPS54140029A (en) | 1978-04-24 | 1978-04-24 | Contactless igniting device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS54140029A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62111166A (en) * | 1985-11-08 | 1987-05-22 | Hitachi Ltd | Contactless ignitor |
-
1978
- 1978-04-24 JP JP4773578A patent/JPS54140029A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62111166A (en) * | 1985-11-08 | 1987-05-22 | Hitachi Ltd | Contactless ignitor |
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