| 摘要 |
The invention relates to an electronic device for driving the electromagnetic pumps feeding the motor vehicles with a constant fuel flow, destined to the internal combustion engines, said device comprising an overvoltage sensing circuit (CST) which supplies an electric signal (V s) depending on the supply voltage (V A), a voltage stabilizer (ST) supplying a constant voltage (V ST), an oscillator (OSC) which generates a signal (V 0) and which is blocked when the supply voltage (V A) increases over a pre-established threshold value (V P) which is a state corresponding to the cancellation of a current (I B) supplied to the electromagnet coil, by a power circuit (CF).
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