1998 · FUEL [13] · страница 89 из 104 · Открыть оригинал PDF ↗

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IGNITION COIL AND POWER TRANSISTOR

OPERATION

When the power transistor unit A is turned ON
by the signal from the engine control unit,
primary current flows to the ignition coil
When the power transistor unit A is turned
OFF;, the primary current is shut off and a high
voltage is induced in the secondary coil A
causing the ignition plugs of No.and No
cylinders to spark When the power transistor
unit B is turned OFF, the ignition plugs of No. 2
and No. 5 cylinders spark In addition, when

the power transistor unit C is turned OFF; the
ignition plugs of No. 3 and No.cylinders
spark:

When the engine control unit turns OFF the
transistor in the unit, the battery voltage in the
unit is applied to the power transistor unit to
turn it ON: When the engine control unit turns
ON the transistor in the unit, the power
transistor unit is turned OFF

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