Patent ID: 9621042
Date: 2017-04-11
CPC Classifications: H02M,H04N,Y02B

Claim:
1. Device comprising an item of equipment; a switch mode power supply module intended to supply power to said item of equipment and comprising a circuit for measuring a power supply voltage present between power supply rails, wherein: said item of equipment comprises a capacitive element connected between power supply rails and an activation circuit, said capacitive element is suitable for storing energy during a switching operation phase of the switch mode power supply module and for supplying the stored energy to said activation circuit during a switching operation interruption phase of the switch mode power supply module; said activation circuit is suitable for applying between said power supply rails the voltage present at the terminals of the capacitive element when said item of equipment is started or woken up by an activation signal, and said switch mode power supply module is suitable for ending the switching operation interruption phase as a function of the measured power supply voltage.