Patent ID: 11936284
Assignee: TEXAS INSTRUMENTS INCORPORATED
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  G | IPC G  H

Claim 18:
19. A system, comprising:
a voltage converter circuit, comprising:
a first switch coupled to a pulse generator, wherein the first switch is configured to receive signals from the pulse generator that cause the first switch to selectively turn ON and turn OFF during a switching cycle;
a second switch coupled to the pulse generator, wherein the second switch is configured to receive signals from the pulse generator that cause the second switch to selectively turn ON and turn OFF during the switching cycle;
an inductor comprising a first inductor end and a second inductor end, wherein the first inductor end is coupled to the first switch and to the second switch; and
a capacitor comprising a first capacitor end and a second capacitor end, wherein the first capacitor end is coupled to the second inductor end; and

a ripple voltage detector circuit coupled to the voltage converter circuit and comprising:
the pulse generator; and
a first control loop coupled to the pulse generator and the voltage converter circuit, wherein the first control loop is configured to:
measure an output voltage of the voltage converter circuit;
determine an output ripple voltage of the output voltage;
determine a ripple coefficient based on the output ripple voltage;
determine a reference peak inductor current based on the ripple coefficient;
determine a peak value of an inductor current during the switching cycle; and
transition a switching state of the voltage converter circuit based on the reference peak inductor current and the peak value of the inductor current.