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US 9,958,922 B2Granted
Low ripple mechanism of mode change in switched capacitor voltage regulators
AssigneeIntel Corporation
InventorsGeorge E. Matthew, Rinkle Jain, Vaibhav Vaidya
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Abstract
Methods and apparatus relating to a low ripple mechanism of mode change in switched capacitor voltage regulators are described. In an embodiment, a mode change of a Switching Capacitor Voltage Regulator (SCVR) is caused based at least in part on a comparison of an output voltage of the SCVR and a reference voltage. The output voltage is sensed based at least in part on a clock signal. Other embodiments are also disclosed and claimed.
Claims20
An apparatus comprising:
- logic, at least a portion of which is in hardware, to cause a mode change of a Switching Capacitor Voltage Regulator (SCVR) based at least in part on a comparison of an output voltage of the SCVR and a reference voltage,
- wherein the output voltage is to be sensed based at least in part on a clock signal, wherein the SCVR in each of a plurality of step down modes is to switch between two states, wherein, while changing between the two states, a transition of the mode change of the SCVR is to be synchronized through a common state.
A method comprising:
- causing a mode change of a Switching Capacitor Voltage Regulator (SCVR) based at least in part on a comparison of an output voltage of the SCVR and a reference voltage,
- wherein the output voltage is sensed based at least in part on a clock signal, wherein the SCVR in each of a plurality of step down modes switches between two states, wherein, while changing between the two states, a transition of the mode change of the SCVR is synchronized through a common state.
A computing system comprising:
- a processor having one or more processor cores to execute one or more instructions to be stored in memory;
- and
- logic, at least a portion of which is in hardware, to cause a mode change of a Switching Capacitor Voltage Regulator (SCVR) based at least in part on a comparison of an output voltage of the SCVR and a reference voltage,
- wherein the output voltage is to be sensed based at least in part on a clock signal, wherein the SCVR in each of a plurality of step down modes is to switch between two states, wherein, while changing between the two states, a transition of the mode change of the SCVR is to be synchronized through a common state.
1 more element
Dependencies are inferred from the claim text.