EP 0386431 A3 19910424 - MEASUREMENT CIRCUITRY FOR THE PRIMARY VOLTAGE OF AN IGNITION COIL
Title (en)
MEASUREMENT CIRCUITRY FOR THE PRIMARY VOLTAGE OF AN IGNITION COIL
Publication
Application
Priority
DE 3907616 A 19890309
Abstract (en)
[origin: EP0386431A2] A circuit arrangement for measuring the primary voltage of an ignition coil is proposed which manages without transistors and zener diodes and is thus particularly suitable for implementation in hybrid technology. The circuit provides a possibility for analog evaluation of the primary voltage and outputs the spark firing duration in the form of a digital signal. <IMAGE>
IPC 1-7
IPC 8 full level
F02P 17/00 (2006.01); F02P 17/10 (2006.01); F02P 17/12 (2006.01)
CPC (source: EP US)
F02P 17/10 (2013.01 - EP US); F02P 17/12 (2013.01 - EP US)
Citation (search report)
- [A] DE 2626499 A1 19761223 - SUN ELECTRIC CORP
- [A] DE 2759155 A1 19790712 - BOSCH GMBH ROBERT
- [A] DE 3043255 A1 19820701 - BOSCH GMBH ROBERT [DE]
- [A] US 4165481 A 19790821 - WELLS JOHN C, et al
- [A] US 4454560 A 19840612 - NAKAO SATOSHI [JP], et al
Designated contracting state (EPC)
DE FR SE
DOCDB simple family (publication)
EP 0386431 A2 19900912; EP 0386431 A3 19910424; EP 0386431 B1 19940615; DE 3907616 A1 19900920; DE 59006090 D1 19940721; US 5075627 A 19911224
DOCDB simple family (application)
EP 90101468 A 19900125; DE 3907616 A 19890309; DE 59006090 T 19900125; US 49036090 A 19900308