GB1356195A - Triggering device for a silicon controlled rectifier for controlling a capacitor discharge ignition circuit - Google Patents
Triggering device for a silicon controlled rectifier for controlling a capacitor discharge ignition circuitInfo
- Publication number
- GB1356195A GB1356195A GB1248971A GB1248971A GB1356195A GB 1356195 A GB1356195 A GB 1356195A GB 1248971 A GB1248971 A GB 1248971A GB 1248971 A GB1248971 A GB 1248971A GB 1356195 A GB1356195 A GB 1356195A
- Authority
- GB
- United Kingdom
- Prior art keywords
- vibrator
- capacitor
- controlled rectifier
- silicon controlled
- memory circuit
- 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.)
- Expired
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02P—IGNITION, OTHER THAN COMPRESSION IGNITION, FOR INTERNAL-COMBUSTION ENGINES; TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES
- F02P3/00—Other installations
- F02P3/06—Other installations having capacitive energy storage
- F02P3/08—Layout of circuits
- F02P3/0876—Layout of circuits the storage capacitor being charged by means of an energy converter (DC-DC converter) or of an intermediate storage inductance
- F02P3/0884—Closing the discharge circuit of the storage capacitor with semiconductor devices
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Ignition Installations For Internal Combustion Engines (AREA)
Abstract
1356195 Ignition systems FABBRICA ITALIANA MAGNETI MARELLI SpA 30 April 1971 [5 June 1970] 12489/71 Heading F1B A triggering device for a silicon controlled rectifier SCR for controlling a capacitor discharge ignition circuit of an internal-combustion engine (not shown) comprises a monostable multi-vibrator MVM adapted for response in use to input pulses produced by operation of a mechanical contact breaker R to provide output pulses for supply to the silicon controlled rectifier, the input of the multi-vibrator being connected to a memory circuit such that in use when the multi-vibrator is operated to produce an output pulse the memory circuit will be conditioned to apply to the multi-vibrator input a bias such as to resist operation of the multivibrator to produce a further output pulse, the memory circuit being such as to remove the bias within a predetermined period to permit the multi-vibrator to respond to the next operation of the contact breaker. The memory circuit comprises a capacitor C3 parallel connected to a resistor R5 so that the capacitor is charged during production of a multi-vibrator output pulse. The multi-vibrator is arranged for energization from a D.C. source through an integrating circuit comprising a series resistor 12 and a parallel capacitor C4. Upon each operation of the breaker contacts, the capacitor will provide the multi-vibrator with a supply voltage sufficient to develop at the catput thereof a control signal capable of triggering the silicon controlled rectifier, while the capacitor will for a predetermined period after the conductive state of the multi-vibrator ceases, supply the multi-vibrator with such a reduced supply voltage that the multi-vibrator output control signal is zero or incapable of triggering the silicon controlled rectifier.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT2554470 | 1970-06-05 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1356195A true GB1356195A (en) | 1974-06-12 |
Family
ID=11217034
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1248971A Expired GB1356195A (en) | 1970-06-05 | 1971-04-30 | Triggering device for a silicon controlled rectifier for controlling a capacitor discharge ignition circuit |
Country Status (12)
| Country | Link |
|---|---|
| US (1) | US3736463A (en) |
| AT (1) | AT319665B (en) |
| BE (1) | BE767998A (en) |
| CH (1) | CH534303A (en) |
| DE (1) | DE2125130A1 (en) |
| ES (1) | ES391935A1 (en) |
| FR (1) | FR2095801A5 (en) |
| GB (1) | GB1356195A (en) |
| NL (1) | NL7107637A (en) |
| PL (1) | PL70696B1 (en) |
| SE (1) | SE382242B (en) |
| ZA (1) | ZA713219B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4077380A (en) * | 1975-05-14 | 1978-03-07 | Texaco Inc. | Controlled-duration continuous-wave high-frequency ignition system |
| FR2418875A1 (en) * | 1978-03-03 | 1979-09-28 | Texaco Development Corp | Controlled-duration continuous-wave HF ignition system - has engine-timed unit for controlling electronic switch which starts and stops oscillator containing transformer |
| JPS5851070U (en) * | 1981-10-01 | 1983-04-06 | 三菱電機株式会社 | internal combustion engine ignition system |
| US4688538A (en) * | 1984-12-31 | 1987-08-25 | Combustion Electromagnetics, Inc. | Rapid pulsed multiple pulse ignition and high efficiency power inverter with controlled output characteristics |
| US20090140791A1 (en) * | 2007-11-29 | 2009-06-04 | Young Paul D | Switching Element Control |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3312860A (en) * | 1963-09-27 | 1967-04-04 | Straza Ind | Condenser discharge using silicon controlled rectifier control means |
| US3383556A (en) * | 1965-06-28 | 1968-05-14 | Gen Motors Corp | Capacitor discharge ignition system |
| FR1555752A (en) * | 1967-11-30 | 1969-01-31 | ||
| GB1239210A (en) * | 1967-12-01 | 1971-07-14 | ||
| US3472216A (en) * | 1968-03-06 | 1969-10-14 | Willis D Clyborne | Engine ignition system |
-
1971
- 1971-04-29 CH CH636371A patent/CH534303A/en not_active IP Right Cessation
- 1971-04-30 GB GB1248971A patent/GB1356195A/en not_active Expired
- 1971-05-18 ZA ZA713219A patent/ZA713219B/en unknown
- 1971-05-21 DE DE19712125130 patent/DE2125130A1/en active Pending
- 1971-05-31 PL PL1971148509A patent/PL70696B1/pl unknown
- 1971-06-02 BE BE767998A patent/BE767998A/en unknown
- 1971-06-02 FR FR7119941A patent/FR2095801A5/fr not_active Expired
- 1971-06-03 NL NL7107637A patent/NL7107637A/xx unknown
- 1971-06-04 SE SE7107214A patent/SE382242B/en unknown
- 1971-06-04 ES ES391935A patent/ES391935A1/en not_active Expired
- 1971-06-04 AT AT484571A patent/AT319665B/en not_active IP Right Cessation
- 1971-06-07 US US00150466A patent/US3736463A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| DE2125130A1 (en) | 1971-12-23 |
| CH534303A (en) | 1973-02-28 |
| ZA713219B (en) | 1972-02-23 |
| US3736463A (en) | 1973-05-29 |
| BE767998A (en) | 1971-11-03 |
| NL7107637A (en) | 1971-12-07 |
| ES391935A1 (en) | 1973-06-16 |
| SE382242B (en) | 1976-01-19 |
| FR2095801A5 (en) | 1972-02-11 |
| PL70696B1 (en) | 1974-04-30 |
| AT319665B (en) | 1975-01-10 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed [section 19, patents act 1949] | ||
| PLNP | Patent lapsed through nonpayment of renewal fees |