Freescale Semiconductor,inc.

Hamada Ahmed

Patrice Besse

Pierre Turpin

Alexis Nathanael Huot-Marchand

Erwan Hemon

Nicolas Jarrige

A method of measuring a capacitor value comprises the steps of loading the capacitor up to a given voltage value; obtaining a first measure of a time for discharging the capacitor by a fixed voltage drop, the discharge of the capacitor being caused by a first current; reloading the capacitor up to the given voltage value; obtaining a second measure of a time for discharging the capacitor by the fixed voltage drop, the discharge of the capacitor being caused by the first current and by a second current of known value added to said first current; and determining the capacitor value from the difference between the first measure and the second measure, based on the given voltage drop or the given time, respectively, and based further on the known value of the given second current.

Method and device for diagnosing a reservoir capacitor of a vehicle passenger protection system, and vehicle safety system incorporating such device

An electrical circuit for manipulating at least one of a voltage and a current on a bus wire comprises a first switch having a first gate, a first source, and a first potential reduction unit. The first potential reduction unit is suitable for lowering a potential difference between the first gate and the first source of the first switch, wherein the lowering of the potential difference is caused by a shutting-off of a first control voltage.

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Toulouse, France

Hamada Ahmed