Abstract: A system includes a memory device and a processing device, operatively coupled to the memory device. The processing device is to perform operations, including initializing a block family associated with the memory device; aggregating temperature values received from one or more temperature sensors of the memory device over time to determine an aggregate temperature; responsive to beginning to program a block residing on the memory device, associating the block with the block family; and in response to the aggregate temperature being greater than or equal to a specified threshold temperature value: performing a soft closure of the block family; initializing an extension timer; continuing to program data to the block; and performing a hard closure of the block family in response to one of the extension timer reaching an extension time value or the block family satisfying a hard closure criteria.

Abstract: Disclosed is an apparatus for dynamic thermal management, which includes a thermal management unit that determines whether there is a need to perform thermal management on a processor based on temperatures measured from a plurality of temperature sensors included in the processor and generates an indication signal, and a controller that performs the thermal management on the processor in response to the indication signal, by using a first method of adjusting a state of each of a plurality of cores included in the processor, a second method of adjusting a level of an operating voltage and a frequency of a clock signal, which are provided to the processor, and/or a third method for adjusting only the frequency of the clock signal to be provided to the processor, and where each of the plurality of cores is in a wake-up state or an idle state.

Abstract: A semiconductor structure and a preheating method thereof are provided. The semiconductor structure includes: a storage chip; a temperature detection unit configured to detect a temperature of the storage chip before the storage chip initiates; and a control chip configured to: before the storage chip initiates, heat the storage chip and determine whether the temperature detected by the temperature detection unit reaches a specified threshold; and if the temperature reaches the specified threshold, control the storage chip to initiate. When the semiconductor structure provided in the present invention works at a low temperature, the storage chip may be heated to the specified threshold, thereby preventing an increase of the resistances on the bit line, the word line, and the metal connection line in the storage chip, and improving the performance of read/write operations of the memory.

Abstract: Computer agents can be throttled individually. In an example, when a computer agent completes a work item, the computer agent reports this to a central component that maintains a vote value for that agent and that increases the respective vote value based on the completed work item. When the central component determines that system performance is sufficiently diminished, central component can throttle the performance of those computer agents having respective vote values above a predetermined threshold value.

Abstract: Systems, apparatuses, and methods for performing a software override of a power estimation mechanism are disclosed. A computing system includes a plurality of tuned parameters for generating an estimate of power consumption. The tuned parameters are generated based on post-silicon characterization of the system. After deployment, the system executes a plurality of different applications. When launching a particular application, the system loads a corresponding set of override parameters which are used to replace the plurality of tuned parameters. The system generates an estimate of power consumption using the set of override parameters rather than the previously determined tuned parameters. Then while executing the particular application, the system makes adjustments to power and frequency values for the various system components based on the estimate of power consumption.

Abstract: In an embodiment, a processor includes a core domain with a plurality of cores and a power controller having a first logic to receive a first request to increase an operating voltage of a first core of the core domain to a second voltage, to instruct a voltage regulator to increase the operating voltage to an interim voltage, and to thereafter instruct the voltage regulator to increase the operating voltage to the second voltage. Other embodiments are described and claimed.

Abstract: A system may include a power supply that generates a first voltage. The power supply may couple upstream from an electrical load. The electrical load may operate based at least in part on the first voltage. In some cases, a solid-state circuit breaker may be coupled between the power supply and the electrical load. Furthermore, a control system may be communicatively coupled to the power supply, the electrical load, and the solid-state circuit breaker. The control system may receive an operational status from the solid-state circuit breaker and may update a visualization rendered on a graphical user interface based at least in part on the operational status. The operational status may indicate an operation of the solid-state circuit breaker coupling the power supply to the electrical load.

Abstract: One embodiment provides a method, including: detecting, based on at least one metric, that an information handling device is experiencing a restricted airflow condition; decreasing, responsive to the detecting, a system power setting of the information handling device during a duration of the restricted airflow condition; and restoring, subsequent to detecting that the information handling device is no longer experiencing the restricted airflow condition; the system power setting. Other aspects are described and claimed.

Abstract: This invention discloses a chip wiring layer temperature sensing circuit, a temperature sensing method, a chip stereo temperature sensor, and a chip thereof. The chip wiring layer temperature sensing circuit includes a metal wiring layer temperature detection module, a pulse delay detection module, and a temperature transition module; wherein the metal wiring layer temperature detection module is disposed at a metal interconnection structure of a metal wiring layer of a chip; and the metal interconnection structure is electrically connected to the pulse delay detection module; wherein the pulse delay detection module includes a system high-speed clock, a delay data generated after a pulse passing through the metal wiring layer temperature detection module detected by the system high-speed clock, and the delay data was sent to the temperature transition module; wherein the temperature transition module calculates a temperature of the metal wiring layer according to the delay data.

Abstract: A fault detection system includes a sensor configured to measure a physical quantity and generate a measurement of the physical quantity; a first processor configured to receive the measurement, execute a first firmware based on the measurement, and output a first result of the executed first firmware; a second processor configured to receive the measurement from the sensor, execute a second firmware based on the measurement, and output a second result of the executed second firmware, wherein the first firmware and the second firmware provide a same nominal function in a diverse manner for calculating the first result and the second result, respectively, such that the first result and the second result are expected to be within a predetermined margin; and a fault detection circuit configured to detect a fault when the first result and the second result are not within the predetermined margin.

Abstract: Systems and methods for adaptive fault prediction analysis are described. In one embodiment, the system includes one or more computing components, and one or more hardware controllers. In some embodiments, the storage system includes a storage drive. At least one of the one or more hardware controllers is configured to analyze one or more tolerance limits of a first computing component among the plurality of computing components; calculate a failure metric of the first computing component based at least in part on the analysis of the one or more tolerance limits of the first computing component; analyze sensor data from the first computing component in real time; and update the failure metric based at least in part on the analyzing of the sensor data.

Abstract: Throttling recommendations for a systolic array may be arbitrated. Throttling recommendations may be received at an arbiter for a systolic array from different sources, such as one or more monitors implemented in an integrated circuit along with the systolic array or sources external to the integrated circuit with the systolic array. A strongest throttling recommendation may be selected. The rate at which data enters the systolic array may be modified according to the strongest throttling recommendation.

Abstract: In an embodiment, a processor includes a core domain with a plurality of cores and a power controller having a first logic to receive a first request to increase an operating voltage of a first core of the core domain to a second voltage, to instruct a voltage regulator to increase the operating voltage to an interim voltage, and to thereafter instruct the voltage regulator to increase the operating voltage to the second voltage. Other embodiments are described and claimed.

Abstract: Embodiments of the present invention include a solid state storage device for reporting actual power consumption including an internal power metering unit, a memory including flash memory, one or more components comprising at least a controller and the memory, wherein the memory has stored thereon instructions that are configured to be executed by the controller, and one or more voltage rails connecting the power metering unit to the one or more components so that the power metering unit is capable of measuring power consumed by the one or more components of the storage device.

Abstract: Described is an apparatus and method to prevent a processor from abruptly shutting down by proactive power management. The apparatus comprises a power supply rail to receive a current and a voltage from a power supply generator (e.g., a DC-DC converter, and low dropout regulator); a processor coupled to the power supply rail, wherein the processor is to operate with a current and a voltage provided by the power supply rail; and an interface to receive a request to throttle one or more performance parameters of the processor when a monitored current through the power supply rail or a monitored voltage on the power supply rail crosses a threshold current or a threshold voltage, respectively, wherein the threshold current is below a catastrophic threshold current of a voltage regulator, or wherein the threshold voltage is above a catastrophic threshold voltage of the processor.

Abstract: A method for building a simulation program with integrated circuit emphasis (SPICE) circuit model of an optical coupler is provided. The method includes: providing a plurality of electrical parameters of the SPICE circuit model of the optical coupler circuit for a plurality of temperature values, and building the SPICE circuit model of the optical coupler at each of the temperature values according to the electrical parameters of the optical coupler for each of the temperature values, so as to form a plurality of temperature-independent SPICE circuit models of the optical coupler; forming a plurality of temperature-voltage conversion switch circuit elements by utilizing control of a voltage source and temperature characteristics of an impedance; and connecting the temperature-voltage conversion switch circuit elements to the temperature-independent SPICE circuit models of the optical coupler, respectively, so as to build a temperature characterized SPICE circuit model of the optical coupler.

Abstract: A control method includes: determining a first state of a plurality of components in an electronic device; acquiring a first operating state of the electronic device; and determining whether to allow one or more of the plurality of components to be removed based on the first state of the plurality of components and the first operating state of the electronic device.

Abstract: Dynamic voltage and frequency scaling (DVFS) is performed based on a power step by setting a plurality of power levels corresponding to a plurality of available frequencies of a clock signal for an operation of a processor, setting a plurality of power steps corresponding to the plurality of available frequencies, and controlling a conversion between the plurality of power levels based on a utilization of the processor and the plurality of power steps. Performance and power consumption of a processor are controlled efficiently by performing power level conversion based on the power step.

Abstract: A measuring device and a measuring method are provided. The measuring device includes an oscillating circuit, a time average frequency-frequency lock loop, and a digital signal processing circuit. The oscillation circuit includes an element to be measured and is configured to output a signal having an oscillation frequency correlated with an element value of the element to be measured. The time average frequency-frequency lock loop is configured to receive the signal output by the oscillation circuit and output a frequency control word correlated with the oscillation frequency. The digital signal processing circuit is configured to read the frequency control word output by the time average frequency-frequency lock loop and obtain the element value of the element to be measured according to the read frequency control word. The measuring device is easy to integrate, has small volume, low power consumption, and high reliability, and can achieve high-precision measurement.

Abstract: Imaging apparatuses and enclosures configured for deployment in connection with ceilings and downlight cavities are disclosed. Certain exemplary aspects relate to imaging apparatuses for monitoring, recording or imaging a space such as a room having overhead lighting provided via ceiling structures that may include enclosures and/or downlight fixtures within ceiling cavities, and various imaging apparatuses herein may include an infrared or thermal camera, for example, for imaging within such spaces.

Abstract: In a method of operating a system-on-chip (SOC), the SOC includes a plurality of processor cores. An operating frequency of the plurality of processor cores is set to a first operating frequency based on permitted power consumption of the SOC and an operating status of the plurality of processor cores. The first operating frequency is within a maximum operating frequency of the plurality of processor cores. At least one of the plurality of processor cores performs at least one processing operation based on the first operating frequency. When present power consumption of the SOC is determined as exceeding the permitted power consumption, a warning signal is activated, and a first control operation for reducing the present power consumption is performed immediately thereafter.

Abstract: The present disclosure relates to methods and devices for operation of a removable storage device. In some aspects, the device can initialize the operation of a removable storage device, such as with a host device. The device can also identify an environment around the device as a thermally enhanced environment or a thermally non-enhanced environment in response to the initialization of operation of the device. Additionally, the device can select a thermal control loop algorithm of the removable storage device based on the identified environment. The device can also adjust a thermal control loop algorithm of the device based on the identified environment. Moreover, the device can control processing operations of a processor in response to the adjusted thermal control loop algorithm.

Abstract: A method of controlling an apparatus that removes specified substances from a process gaseous stream can control at least one fan and a rotary wheel that removes the specified substances. The method includes measuring a pressure difference of the process gaseous stream across upstream and downstream sides of the rotary wheel, comparing the measured pressure difference to a predetermined pressure range, and controlling the at least one fan to increase or decrease its speed if the measured pressure difference is outside of the predetermined pressure range so as to change the pressure difference so as to be within the predetermined pressure range.

Abstract: The present disclosure describes apparatuses and methods for temperature-based memory management. In some aspects, a temperature-based memory manager receives, from a temperature sensor of a memory block, an indication of a temperature of the memory block. The temperature-based memory manager compares the indication of the temperature with a temperature threshold associated with the memory block. Based on a result of the comparison, the temperature-based memory manager alters a frequency of a clock signal by which the memory block operates effective to change power consumption of the memory block. By so doing, power consumption of the memory block may be reduced, and operating temperatures of the memory block can be kept below temperatures that are likely to affect reliability of storage cells of the memory block. This can be effective to improve reliability and long-term performance of the memory block, particularly in high-performance or mission critical applications.

Abstract: A method of estimating a temperature of a reactor provided in a boost converter disclosed herein, a temperature of a bus bar connected with the reactor and a current flowing in the bus bar are measured; when an absolute value of a DC component ILdc of the measured current exceeds a current threshold Ith, an estimated value of the temperature of the reactor is calculated by adding a first correction value, which depends on the DC component ILdc, to the measured temperature TL and is outputted as an estimated temperature TR; and when the absolute value of the DC component is lower than the current threshold Ith, the estimated value of the temperature of the reactor is calculated by adding a second correction value, which does not depend on the measured current, to the measured temperature and is outputted as the estimated temperature TR.

Abstract: The semiconductor device includes a plurality of cores, a sensor for detecting a temperature, and a control circuit configured to obtain each power consumption of the respective cores so as to select the core as a control object in accordance with the obtained power consumption.

Abstract: A power supply unit that allows measurement of the capacitance without interrupting operation of the unit is disclosed. The unit includes a controller that causes a voltage change of a capacitor from a first threshold voltage between two periods of time. The time difference of when the voltage reaches a second threshold voltage is measured and the capacitance is determined from the time measurement, voltage change and power dissipation. The determination of capacitance may be performed while the power supply unit is actively supplying power.

Abstract: Methods and systems for operating a programmable logic fabric (16) including a dynamic parameter scaling controller (22) that tracks an operating parameter that functions at multiple operating conditions by maintaining the operating parameter while cycling through multiple operating conditions during a calibration mode using the calibration configuration for the programmable logic fabric (16). The dynamic parameter scaling controller (22) also stores one or more functional values for the operating parameter in a calibration table. The dynamic parameter scaling controller (22) also operates the programmable logic fabric (16) using a design configuration using dynamic values for the operating parameter based at least in part on the one or more operating conditions.

Abstract: High temperature protection system includes a thermal detection and control circuit, a pulse width modulation signal output circuit, a driving circuit, and a coil module. The thermal detection and control circuit is used for detecting a temperature and outputting at least one corresponding control signal. The pulse width modulation signal output circuit is coupled to the thermal detection and control circuit for generating a pulse width modulation signal according to the at least one control signal. The driving circuit is coupled to the pulse width modulation signal for generating at least one driving voltage. The coil module is coupled to the driving circuit and is operated according to the at least one driving voltage.

Abstract: Locational environmental control provides quicker and more efficient comfort. A location associated with a mobile device determines a ceiling fan and/or an air terminal that best serves the location. The ceiling fan may be activated to provide inexpensive climate control to the location associated with the mobile device. Conditioned air (heated or cooled) may be output from the air terminal to provide additional relief.

Abstract: An integrated circuit (IC) includes: a plurality of hardware performance counters; a thermal sensor; and a micro-controller. The micro-controller generates a plurality of thermal predictors based on values of the counters and temperatures sensed by the thermal sensor. The thermal predictors include first and second rising thermal delta predictors to predict rising temperature deltas and first and second falling thermal delta predictors to predict falling temperature deltas. The micro-controller predicts a future temperature of the IC based on an idle temperature of the IC and a selected one of the temperature deltas.

Abstract: A method and a computer system for reducing noise are provided. The method includes: setting the computer system's operating mode to normal mode or low-noise mode by a processing unit according to a selection signal; measuring an operating temperature of the processing unit; controlling a rotational speed of a fan unit conducive to dissipation of heat from the processing unit according to the operating temperature by a fan-control unit in normal mode; detecting the operating temperature according to a first threshold and starting an overheat-protection mechanism by the processing unit in normal mode when the operating temperature reaches the first threshold; shutting down the fan unit by the fan-control unit in low-noise mode; and detecting the operating temperature according to a second threshold lower than the first threshold and starting the overheat-protection mechanism by the processing unit in low-noise mode when the operating temperature reaches the second threshold.

Abstract: Systems, methods, and computer-readable media for protecting critical data on cameras from physical attacks. In some examples, a camera at a particular site monitors data captured by the camera and, based on the data, detects one or more predetermined conditions indicating a threat to the camera. Based on the one or more predetermined conditions indicating the threat to the camera, the camera determines a threshold risk of damage to data stored at the camera. In response to determining the threshold risk of damage to the data stored at the camera, the camera selects, from a plurality of content items in the data stored at the camera, a subset of content items based on respective priorities associated with the plurality of content items, and sends, via a network, the subset of content items to one or more destinations to yield a prioritized backup of the plurality of content items.

Abstract: Methods, systems, and computer programs encoded on computer storage medium, for detecting a throttling of a component; identifying a temperature of the component; calculating a thermal response for the component, including: setting the identified temperature as a maximum temperature, setting a first temperature lower than the maximum temperature, wherein for temperatures of the component less than the first temperature, the cooling fan system has a first fan speed, setting a second temperature between the first and the maximum temperature, wherein for temperatures of the component between the first and the second temperatures, a fan speed of the cooling fan system is linearly increased until an acoustic fan speed, setting a third temperature between the second and the maximum temperature, wherein for temperatures of the component between the second and third temperatures, maintaining the fan speed at the acoustic fan speed; applying the thermal response to the component.

Abstract: An electronic device includes a thermal sensor and a microprocessor. The thermal sensor is configured to sense an internal temperature of the electronic device and provide multiple temperature values according to the sensing result. The microprocessor is coupled to the thermal sensor and configured to receive the temperature values. The microprocessor determines a high threshold value and a low threshold value according to the temperature values and filters the temperature values in sequence according to the high threshold value and the low threshold value. When one of the temperature values is not higher than the high threshold value and is not lower than the low threshold value, the microprocessor outputs the temperature value, and when the temperature value is higher than the high threshold value or is lower than the low threshold value, the microprocessor outputs a predetermined temperature value instead of the temperature value.

Abstract: A method for monitoring temperature of an electronic element is provided. The method is used in an embedded controller of a device and includes: determining whether the temperature reading is higher than or equal to a temperature threshold; increasing a time value of a timer with an accumulated time value when the temperature reading is higher than or equal to the temperature threshold; determining whether the time value is greater than or equal to a time threshold; and transmitting a notification signal to a basic input/output system (BIOS) to notify the BIOS to read the temperature reading when the time value is greater than or equal to the time threshold.

Abstract: The invention relates to a method for estimating a temperature contribution of an inverter used to energize an electrical machine, in particular a synchronous machine. The method comprises the steps for calculating oscillating temperature swings of components of the inverter; and determining, as the estimated temperature contribution (?T(?), ?Ti(?), (?Td(?)) of the inverter, an upper envelope of an amplitude of a sum of the calculated oscillating temperature swings. The method according to the invention or an apparatus designed to carry out the method can be expanded for the purpose of estimating a temperature or a complete temperature contribution of the inverter and is provided, in particular, for use in an electric vehicle or a hybrid vehicle having an electrical drive without a variable speed gear in order to estimate the operating temperature of vehicle drive power electronics accommodated therein.

Abstract: Methods of operating a mobile device are provided. A method of operating a mobile device includes calculating a mean power consumption with respect to a time duration, using a measured power consumption or using an estimated power consumption. The method includes comparing a performance constraint standard with the mean power consumption. Moreover, the method includes constraining performance of the mobile device, using an application processor of the mobile device, in response to determining that the mean power consumption exceeds the performance constraint standard. Related mobile devices are also provided.

Abstract: A method and device for temperature measurement of a processor is disclosed. A temperature-sensing circuit of the processor may have an associated resonance frequency, wherein the resonance frequency depends on a temperature of the temperature-sensing circuit. A temperature of the temperature-sensing circuit may be determined by determining the resonance frequency of the temperature-sensing circuit.

Abstract: A heating, ventilation, and air conditioning (HVAC) system may be controlled by an HVAC control system. The HVAC control system may include a communications block, a controller and a user interface. The communications block may receive sensed data from sensing devices located within spaces of a building. The sensing devices may be located at different spaced sensor locations within the building. The controller may receive the sensed data from the communications block and based, at least in part, on the received sensed, determine recommended setting changes to the HVAC control system. The user interface may display the recommended setting changes to a user.

Abstract: Embodiments contained in the disclosure provide a method and apparatus for device specific thermal mitigation. The thermal and power behavior of the device, is characterized. A thermal threshold is then determined for the device. The thermal data and thermal ramp factor for each device are determined and stored in a cross-reference matrix. A correlation factor is determined for temperature and frequency. These correlation factors determine a device mitigation temperature. The device mitigation temperature may be stored in a fuse table on the device, with a fuse blown on the device to permanently store the device mitigation temperature. The apparatus includes: an electronic device, a memory within the electronic device, and a set of fuses within the electronic device. The device also includes means for determining if a static or dynamic frequency is high, and means for mitigating a voltage and frequency used by the device, based on that determination.

Abstract: Systems and methods herein remedy thermal constraints experienced by wireless communication systems operating in the millimeter wave spectrum. User equipment (UE) having a plurality of antenna subarrays controlled by respective RFICs monitor temperature gradients of respective sectors of the UE. Upon the thermal gradient of a sector reaching a temperature threshold, the UE performs thermal management steps to prevent hardware of a respective sector from damage due to overshoot.

Abstract: A storage device capable of providing instructions to modify a cooling system in support of its own operations is described. The storage device may include data storage to store data. The storage device may also include one or more operation sensors to determine a change in the operating conditions of the storage device. Finally, the storage device may include a transmitter to transmit the change in the operation conditions of the storage device to a Thermal Management System (TMS).

Abstract: Method, machine, manufacture, composition of matter, article, and improvements thereto, with particular regard to chemically heated hot emitter electric generators, and support thereof. Illustratively, there can be a machine including: a first computer system including a digital computer operably associated with an input device, a memory, and an output device, the computer programmed to carry out operations including: receiving, as information input at said input device, input representing chemically heated hot emitter electromagnetic emissions; computing, from said input, output that can be used for, or to facilitate, operation of chemically heated hot emitter generators.

Abstract: Embodiments of the present disclosure provide techniques and configurations for integrally determining a parameter (e.g., temperature) of a die of an integrated circuit. In one instance, the apparatus may comprise a die including a first (e.g., remote) area and a second (e.g., local) area disposed at a distance from the first area, and circuitry to determine a parameter associated with the remote area of the die. The circuitry may include: a first sensing device disposed in the remote area, to provide first readings associated with the parameter; a second sensing device disposed in the local area, to provide second readings associated with the parameter; and a control module coupled with the sensing devices and disposed in the local area, to facilitate a determination of the parameter based on the first and second readings provided by the first and second sensing devices. Other embodiments may be described and/or claimed.

Abstract: Described herein are technologies related to an implementation of a thermal management scheme in a device. Particularly, a look up table or LUT is configured to include a data set of information (e.g., user-profile data, network-profile data) and a corresponding recommended thermal throttling mode. During regular device operation, conditions internal/external to the device is detected and the corresponding thermal throttling mode (from the LUT) is applied. In certain implementations, optimization algorithms are used in place of the LUT.

Abstract: Methods of operating a mobile device are provided. A method of operating a mobile device includes calculating a mean power consumption with respect to a time duration, using a measured power consumption or using an estimated power consumption. The method includes comparing a performance constraint standard with the mean power consumption. Moreover, the method includes constraining performance of the mobile device, using an application processor of the mobile device, in response to determining that the mean power consumption exceeds the performance constraint standard. Related mobile devices are also provided.

Abstract: A high accuracy on-chip thermal sensor includes an integrated circuit and sensing elements. The thermal sensor finds application in various mobile and battery powered devices and includes a processor that analyzes a measured temperature signal and decides if the thermal sensor operates in low or high power operational mode, or if the device's CPU is to be reset. A method utilizing the thermal sensor includes making comparisons to two threshold temperatures and operating at low power mode below the first threshold temperature, high power mode between the two threshold temperatures and causing reset if the second threshold temperature is exceeded. Low power operational mode includes a lower clock frequency, lower bias current and lower power consumption. Higher power operational mode is used when the upper threshold temperature is being approached and includes a higher data sampling frequency and more accurate temperature control and uses higher power.

Abstract: A method to avoid over-rebooting of a power supply device comprises Step 1: receiving a power-good signal generated by a power supply device working normally; Step 2: checking whether the power-good signal is received; if no, demanding the power supply device to reboot; and Step 3: recording a count of rebootings of the power supply device; after the power supply device reboots, checking again whether the power-good signal is received; if yes, letting the power supply device keep on working and resetting the count of rebootings; if no, demanding the power supply device to reboot again, accumulating the count of rebootings, and checking whether the count of rebootings is greater than a limited count of rebootings; if yes, forbidding the power supply device to reboot. Thus is solved the problem that a power supply device whose abnormality cannot be removed by rebooting may damage the information device.

Abstract: According to various embodiments, a circuit arrangement is described that has a plurality of components requiring a supply. Each component requiring a supply is set up to output a signal that indicates a subsequent power requirement of the component requiring a supply. The circuit arrangement further has a control device that is set up to take the signals as a basis for ascertaining a value that represents a subsequent power requirement of the plurality of components requiring a supply, to ascertain whether the value satisfies a prescribed criterion, and to control the operation of the components requiring a supply on the basis of whether the value satisfies the prescribed criterion.