EP 0307325 B1 19930310 - IGNITION CONTROL CIRCUIT
Title (en)
IGNITION CONTROL CIRCUIT
Publication
Application
Priority
FR 8712103 A 19870827
Abstract (en)
[origin: EP0307325A1] The invention relates to a control circuit comprising: a double pole power switch (4) connected in series to the primary winding of an ignition coil (2) and a detection resistor (R1) connected to a voltage divider (R2, R3) supplying a voltage VD; a controlled amplifier- comparator (9), the first input of which receives the detected voltage and the second input of which receives a reference voltage (8) and the output of which is connected to the base of the switch (4), this amplifier-comparator acting to limit the base current when the detected voltage nears the reference voltage; a series resistor (R10) between the output of the amplifier-comparator (9) and the base of the switch (4); a differential amplifier (11), the inputs of which are connected to the terminals of the series resistor and the output of which is connected to the first input of the amplifier-comparator. <IMAGE>
IPC 1-7
IPC 8 full level
F02P 3/04 (2006.01); F02P 3/045 (2006.01); F02P 3/05 (2006.01); F02P 3/055 (2006.01); F02P 5/145 (2006.01)
CPC (source: EP KR US)
F02P 3/04 (2013.01 - KR); F02P 3/051 (2013.01 - EP US)
Designated contracting state (EPC)
DE ES FR GB IT NL SE
DOCDB simple family (publication)
EP 0307325 A1 19890315; EP 0307325 B1 19930310; DE 3879051 D1 19930415; DE 3879051 T2 19930916; ES 2038781 T3 19930801; FR 2619859 A1 19890303; FR 2619859 B1 19900112; JP 2621946 B2 19970618; JP S6473168 A 19890317; KR 890004068 A 19890419; US 4912373 A 19900327
DOCDB simple family (application)
EP 88420284 A 19880823; DE 3879051 T 19880823; ES 88420284 T 19880823; FR 8712103 A 19870827; JP 20963088 A 19880825; KR 880010415 A 19880816; US 23106188 A 19880811