GB1330453A - Solid state ignition systems - Google Patents

Solid state ignition systems

Info

Publication number
GB1330453A
GB1330453A GB1330453DA GB1330453A GB 1330453 A GB1330453 A GB 1330453A GB 1330453D A GB1330453D A GB 1330453DA GB 1330453 A GB1330453 A GB 1330453A
Authority
GB
United Kingdom
Prior art keywords
diode
transistor
jan
collector
power
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
Application number
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Lumenition Ltd
Original Assignee
Lumenition Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Lumenition Ltd filed Critical Lumenition Ltd
Publication of GB1330453A publication Critical patent/GB1330453A/en
Expired legal-status Critical Current

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
    • F02P3/02—Other installations having inductive energy storage, e.g. arrangements of induction coils
    • F02P3/04—Layout of circuits
    • F02P3/0407—Opening or closing the primary coil circuit with electronic switching means
    • F02P3/0435—Opening or closing the primary coil circuit with electronic switching means with semiconductor devices
    • 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
    • F02P3/02—Other installations having inductive energy storage, e.g. arrangements of induction coils
    • F02P3/04—Layout of circuits
    • F02P3/055—Layout of circuits with protective means to prevent damage to the circuit, e.g. semiconductor devices or the ignition coil
    • F02P3/0552—Opening or closing the primary coil circuit with semiconductor devices
    • 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
    • F02P7/00—Arrangements of distributors, circuit-makers or -breakers, e.g. of distributor and circuit-breaker combinations or pick-up devices
    • F02P7/06—Arrangements of distributors, circuit-makers or -breakers, e.g. of distributor and circuit-breaker combinations or pick-up devices of circuit-makers or -breakers, or pick-up devices adapted to sense particular points of the timing cycle
    • F02P7/073—Optical pick-up devices

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Lighting Device Outwards From Vehicle And Optical Signal (AREA)

Abstract

1330453 Ignition systems LUMENITION Ltd 7 Jan 1972 [8 Jan 1971 26 Jan 1971 [ 1029/71 and 3173/71 Heading FIB A transistorized ignition system disclosed in Specification 1219833, in which are provided lensing means to ensure that the infra red rays from the lamp 1 converge to a point 17 in the plane of the rotating disc 3, means to ensure that the photo-transistor 2 produces cleanly switched square wave pulses without oscillation, and means for protecting the power stage against transient voltages at the instant of switch off being provided. The former means comprises a diode D4 across the emitter and collector electrodes of photo-transistor 2 and the latter means comprises resistor R9 and Zener diode Z1 in series across the collector and base electrodes of power transistor P and a diode D2 across the collector and emitter electrodes of P. Resistor R9 and Zener diode Z1 protect against positive going transients and diode D2 against negative going transients. The switching time of power transistor P is slowed by an iron cored inductor L. The power stage may comprise two power transistors (P1) and (P2) arranged as a darlington pair, Fig. 3 (not shown). Reference has been directed by the Comptroller to Specification 1252324, 1252559, and 1279385.
GB1330453D 1971-01-08 1971-01-08 Solid state ignition systems Expired GB1330453A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB102971 1971-01-08

Publications (1)

Publication Number Publication Date
GB1330453A true GB1330453A (en) 1973-09-19

Family

ID=9714907

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1330453D Expired GB1330453A (en) 1971-01-08 1971-01-08 Solid state ignition systems

Country Status (2)

Country Link
BR (1) BR7200072D0 (en)
GB (1) GB1330453A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2178531A (en) * 1985-07-05 1987-02-11 Lumenition Ltd Improvements in light sensitive electronic switches

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2178531A (en) * 1985-07-05 1987-02-11 Lumenition Ltd Improvements in light sensitive electronic switches
GB2178531B (en) * 1985-07-05 1989-07-12 Lumenition Ltd Improvements in light sensitive electronic switches

Also Published As

Publication number Publication date
BR7200072D0 (en) 1973-08-21

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Legal Events

Date Code Title Description
PS Patent sealed
PLE Entries relating assignments, transmissions, licences in the register of patents
PCNP Patent ceased through non-payment of renewal fee