ELECTRICAL CIRCUIT FOR CONTROLLING A PIEZOELECTRIC ELEMENT, PARTICULARLY OF A FUEL INJECTION SYSTEM OF A MOTOR VEHICLE

The invention relates to an electrical circuit (10) for controlling a piezoelectric element (11, 12, 13, 14), particularly of a fuel injection system of a motor vehicle. Two series-connected transistors (27, 28) that can be controlled by a clock pulse are provided whose common connecting point is co...

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Bibliographic Details
Main Authors REINEKE JOERG, GRAF MARCO
Format Patent
LanguageEnglish
Published 07.09.2007
Subjects
BLASTING
COMBUSTION ENGINES
CONTROLLING COMBUSTION ENGINES
ELECTRICITY
HEATING
HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
LIGHTING
MECHANICAL ENGINEERING
WEAPONS
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Summary:The invention relates to an electrical circuit (10) for controlling a piezoelectric element (11, 12, 13, 14), particularly of a fuel injection system of a motor vehicle. Two series-connected transistors (27, 28) that can be controlled by a clock pulse are provided whose common connecting point is coupled to the piezoelectric element (11, 12, 13, 14), and of which one (28) is provided for discharging the piezoelectric element (11, 12, 13, 14). In the event of a fault, the transistor (28) provided for discharging can be controlled using the clock pulse.
Bibliography:Application Number: KR20077012648