Intel Corporation

Tahoe Research, Ltd.

Vaibhav Vaidya

Christopher Schaef

Suhwan Kim

Krishnan Ravichandran

Harish Krishnamurthy

Vivek K De

Lilly Huang

Sriram R Vangal

Nachiket Venkappayya Desai

Turbo Majumder

Xiaosen Liu

Khondker Z Ahmed

Rinkle Jain

Tanay Karnik

David Arditti Ilitzky

Ankit Prakash Gupta

George Matthew

Dileep J Kurian

Sriram Kabisthalam Muthukumar

Yang-Lin Chen

Sally Safwat Amin

Pavan Kumar

Wayne Proefrock

Yi-Chun Shih

Frank K Welch, Jr

Ilya Klochkov

Sergio Carlo

Suvankar Biswas

Bernd Nordhausen

John G Tompkins

Akhila M

Frank K Welch Jr

Wayne L Proefrock

Voltage dividing circuitry is provided for use in a voltage converter for converting at least one input Direct Current, DC voltage to a plurality of output DC voltages. The voltage dividing circuitry including a voltage input port to receive an input DC voltage and an inductor having an input-side switch node and an output-side switch node. The output side switch node is connectable to one of a plurality of voltage output ports to supply a converted value of the input DC voltage as an output DC voltage. The flying capacitor interface has a plurality of switching elements and at least one flying capacitor, the flying capacitor interface to divide the input DC voltage to provide a predetermined fixed ratio of the input DC voltage at the input-side switch node of the inductor. A voltage converter and a power management integrated circuit having the voltage dividing circuitry are also provided.

Multiple output voltage conversion

Apparatuses, methods and storage medium associated with deriving power output from an energy harvester are disclosed herein. In embodiments, an apparatus may include one or more processors, devices, and/or circuitry to identify a plurality of times at which an intermediate voltage of a two stage power conversion circuit corresponds to a voltage reference, and ascertain an amount of time between one of the identified times and another one of the identified times. The one or more processors, devices, and/or circuitry may derive a power or current value associated with the second power supply using the amount of time.

Deriving power output from an energy harvester

In one embodiment, an energy harvesting system includes multiple-input-multiple-output switched-capacitor (MIMOSC) circuitry comprising a plurality of switched-capacitor circuit units to receive a plurality of direct current (DC) input voltages at respective input terminals of the switched-capacitor circuit unit, combine the received DC input voltages, and provide the combined DC input voltages at an output terminal of the switched-capacitor circuit unit. The energy harvesting system also includes maximum power point tracking (MPPT) circuitry coupled to switches of the switched-capacitor circuit units of the MIMOSC circuitry. The MPPT circuitry is to provide a plurality of switching signals to the switches of the switched-capacitor circuit units. The MIMOSC circuitry is to provide a plurality of DC output voltages to respective loads based on the switching signals from the MPPT circuitry.

Energy harvester with multiple-input multiple-output switched-capacitor (MIMOSC) circuitry

Systems, apparatuses and methods may provide for early pre-charge with respect to peak power events. Application performance may improve by pre-charging a supercap just prior to initiating a system wake up from a qualified system wake-source trigger. Additionally, the pre-charging of the supercap may be controlled by a time defined pre-charge period and may also be controlled by a predetermined threshold voltage.

Early pre-charge enablement for peak power application in net zero energy devices

An embodiment of a harvester apparatus comprising two or more charge pump stages may include at least a first charge pump stage to receive an alternating current source, and a second charge pump stage coupled to the first charge pump stage.

Self-starting AC harvester

Spin Hall Effect (SHE) magneto junction memory cells (e.g., magnetic tunneling junction (MTJ) or spin valve based memory cells) are used to implement high entropy physically unclonable function (PUF) arrays utilizing stochastics interactions of both parameter variations of the SHE-MTJ structures as well as random thermal noises. An apparatus is provided which comprises: an array of PUF devices, wherein an individual device of the array comprises a magnetic junction and an interconnect, wherein the interconnect comprises a spin orbit coupling material; a circuitry to sense values stored in the array, and to provide an output; and a comparator to compare the output with a code.

Physically unclonable function implemented with spin orbit coupling based magnetic memory

In some examples, an apparatus for reference voltage generation includes a plurality of reference voltage rails each with a corresponding reference voltage, a first controller, and a second controller. The first controller is to cycle through the plurality of reference voltage rails and maintain the reference voltages in a synchronous mode. The second controller is to detect an event and provide an indication to the first controller to update in an asynchronous mode one of the plurality of reference voltages in response to the event. The first controller is to update in an asynchronous mode the one of the plurality of reference voltages in response to the event.

Reference voltage generation

Some embodiments include apparatus and methods for using a switch to couple an inductor to an energy harvester for a time interval to allow charging of the inductor during the time interval, and using a circuit to generate control information for power management. A value of the control information is based on a value of the time interval.

Energy harvester power indicator and power management circuitry

Embodiments described herein concern operating a peak-delivered-power (PDP) controller. Operating a PDP includes calculating the new power output value from the output voltage value and the output current value, determining whether the new power output value is greater than the previous power output value to determine whether the voltage regulator is outputting a maximum power output, based on a determination that the new power output value is greater than the previous power output value, providing an instruction to a duty generator to increase a duty cycle of the voltage regulator, based on a determination that the new power output value is not greater than the previous power output value, providing an instruction to the duty generator to decrease the duty cycle of the voltage regulator, and replacing the previous power output value with the new power output value.

Peak-delivered-power circuit for a voltage regulator

A power regulator includes a plurality of harvester switches, each coupled to receive a separate energy source, a plurality of load switches, each coupled to supply power to a separate load, an inductor to store energy received from one or more energy sources and release the energy to supply the power to one or more loads and a controller to control charging of the inductor via activation of one or more of the harvester switches and discharging of the inductor via activation of one or more of the load switches.

Multiple input single inductor multiple output regulator

The present disclosure provides for the management of power of a NZE IoT device. Managing power can include receiving the one or more asynchronous events from the asynchronous event system, determining if any of the one or more asynchronous events meet a respective charge qualification, generating the power-on command for the power-managed compute system if any of the one or more asynchronous events meet the respective charge qualification, and waiting for a power source to reach a threshold associated with the respective charge qualification if any of the one or more asynchronous events do not meet the respective charge qualification.

Power management of an NZE IoT device

In an embodiment, a system includes controller circuitry to initiate a plurality of energy transfer cycles. Each energy transfer cycle includes an input time period during which corresponding input energy is received by a power train, and an output time period during which corresponding output energy is output from the power train. The system also includes energy detection logic to provide, upon completion of each energy transfer cycle, a corresponding indication of corresponding residual energy retained by the power train. Other embodiments are described and claimed.

Apparatus and method for reduced energy retention in an energy transfer system

Embodiments described herein describe operating a master-slave controller. Operating the master-slave controller comprises, based on a determination that the first output voltage value is greater than the second output voltage value, calculating a first duty cycle value and an input voltage value and the second voltage regulator, calculating a second duty cycle value based on the first duty cycle value, and based on a determination that the second output voltage value is greater than or equal to the first output voltage value, calculating the second duty cycle value based on the second output voltage value and the input voltage value and calculating the first duty cycle value based on the second duty cycle value and configuring the first voltage regulator with the first duty cycle value and the second voltage regulator with the second duty cycle value.

Master-slave controller architecture

Techniques for harvesting electrical energy from a plurality of harvesters is disclosed. An example energy harvesting system includes a plurality of harvesters and a signal conditioning circuit selectively coupled to an output of each of the plurality of harvesters. The system also includes an energy storage element coupled to the output of the signal conditioning circuit to be charged by the plurality of harvesters through the signal conditioning circuit. The system also includes a controller to discharge a selected harvester to the signal conditioning circuit when an output of the selected harvester triggers a charge collection.

Growing community of inventors

Portland, OR, United States of America

Vaibhav Vaidya