Patent ID: 7839182

Claim:
A circuit for detecting noise peaks on a power supply of an electronic circuit, the power supply providing a first potential of a supply voltage, the circuit comprising: a power terminal at which is applied the first potential of the supply voltage; a low-pass filter receiving as input the first potential of the supply voltage and providing as output a second potential and a third potential of the supply voltage, the low-pass filter comprising at least one first resistive element; and at least first and second transistors each having their control terminals connected to the power terminal of application of the first potential of the supply voltage of the circuit and each having first conduction terminals at which is applied one of the second and third potentials of the supply voltage, a second conduction terminal of each of the first and second transistors providing the result of the detection, wherein the first and second transistors are of opposite type and are connected in parallel to the low-pass filter.