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US 2026/0189130 A1Published application
Voltage overshoot mitigation
AssigneeIntel Corporation
InventorsAmit K. Jain, Sze Geat Pang, Joshua Resch, Marva Mason Ortiz
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Abstract
Embodiments herein relate to a voltage converter which can mitigate a voltage overshoot in an energy efficient and space-efficient manner. In one aspect, energy from an inductor is diverted away from the output and recycled from the output capacitance to the input of the voltage converter. Different implementations includes an augmented buck-boost converter, a switched-coupled-inductor buck converter, a buck-reverse-flyback hybrid converter, and an inductive shunt and recovery circuit.
Claims20
An apparatus, comprising:
- a power rail;
- a ground rail;
- a first series path, coupled to the power rail and the ground rail, comprising a high-side switch and a low-side switch;
- a second series path, coupled to the power rail and the ground rail, comprising a first switch and a second switch;
- an inductor coupled at one side to a node between the high-side and low-side switches and at an opposing side to a node between the first and second switches;
- and
- a third switch which is coupled at one side to the node between the first and second switches and at an opposite side to the power rail.
4 more elements
An apparatus, comprising:
- a power rail including first and second portions;
- a ground rail;
- a first series path, coupled to the first portion of the power rail and the ground rail, comprising a high-side switch and a low-side switch;
- a first inductive path including a first inductor coupled at one side to the second portion of the power rail and at an opposing side to a node between the high-side and low-side switches;
- and
- a second inductive path including a second inductor coupled at one side to the ground rail and at an opposing side to the power rail or the ground rail.
3 more elements
A system, comprising:
- a voltage converter comprising a power rail and a ground rail;
- and
- a control circuit coupled to the voltage converter, wherein:
- the voltage converter comprises a first inductive path comprising a first inductor, and a second inductive path comprising a second inductor coupled on one side to the power rail by a power rail-side switch and on an opposing side to the ground rail by a ground rail-side switch;
- and
- the control circuit is configured to make a determination that an overvoltage condition exists at the voltage converter, and to turn on the power rail-side switch and the ground rail-side switch based on the determination that the overvoltage condition exists.
3 more elements
Dependencies are inferred from the claim text.