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Power management technique of varying the voltage used by a component
upon circumstances. Dynamic voltage scaling to increase voltage is known as overvolting; dynamic voltage scaling to decrease voltage is known as undervolting
Dynamic_voltage_scaling
Power management technique in computers
Dynamic frequency scaling almost always appears in conjunction with dynamic voltage scaling, since higher frequencies require higher supply voltages for
Dynamic_frequency_scaling
controller. AVS is similar in its goal to dynamic voltage scaling (DVS) and dynamic voltage and frequency scaling (DVFS). All three approaches aim to reduce
Adaptive_voltage_scaling
Feature of some electrical appliances
detection) Constant Awake Mode CPU power dissipation Dynamic frequency scaling Dynamic voltage scaling Energy Star Energy storage as a service (ESaaS) Green
Power_management
PDA processor
processor offered DVFM (Dynamic Voltage and Frequency Management), combining both dynamic clock speed and dynamic voltage scaling power saving features
Sony_Handheld_Engine
Voltage within a computing core
with integrated graphics may have a separate voltage domain for the GPU portion Dynamic voltage scaling Switched-mode power supply applications (SMPS)
CPU_core_voltage
Topics referred to by the same term
digital camera which responds to local changes in brightness Dynamic voltage scaling, a computer power management technique D.V.S* (Derek VanScoten, active
DVS
Computer component
needed] Some models integrate with dynamic frequency scaling to support dynamic voltage and frequency scaling (DVFS).[citation needed] Some models can be configured
Power management integrated circuit
Power_management_integrated_circuit
Chip design improvement procedure
threshold voltage also reduces the leakage current of a path. Filter capacitor Operand isolation CPU power dissipation Dynamic voltage scaling Clock gating
Glitch_removal
American university teacher
Retrospective for “Combined dynamic voltage scaling and adaptive body biasing for lower power microprocessors under dynamic workloads” (with S. Martin
Trevor_Mudge
As transistors become smaller, their power density remains constant
In semiconductor electronics, Dennard scaling, also known as MOSFET scaling, is a scaling law which states roughly that, as transistors get smaller, their
Dennard_scaling
Electronics devices with low power consumption
watt Power management Green computing Dynamic frequency scaling Overclocking Underclocking Dynamic voltage scaling Operand isolation Glitch removal Autonomous
Low-power_electronics
Hardware cache of a central processing unit
shared between the cores. L4 cache is currently uncommon, and is generally dynamic random-access memory (DRAM) on a separate die or chip, rather than static
CPU_cache
When voltage across/within a circuit is raised beyond the design limit
discharge Overcurrent Dynamic voltage scaling, automatic adjustment of voltage in digital circuits Overclocking, where voltages may be purposefully increased
Overvoltage
jitter in embedded systems employing a time-triggered software architecture and dynamic voltage scaling", IEEE Transactions on Computers, 55(2): 113–124.
Time-triggered_architecture
Problems with central processing unit design
Analog Quantum Switch Power management PMU APM ACPI Dynamic frequency scaling Dynamic voltage scaling Clock gating Performance per watt (PPW) Related History
Hazard (computer architecture)
Hazard_(computer_architecture)
Increasing a processor's frequency to enhance performance
computing in the form of multicore processors. Dynamic frequency scaling Overclocking Underclocking Voltage scaling John L. Hennessy and David A. Patterson.
Frequency_scaling
Digital circuit that produces sums from inputs
5009159. S2CID 206619926. Reynders, Nele; Dehaene, Wim (2015). Ultra-Low-Voltage Design of Energy-Efficient Digital Circuits. Analog Circuits and Signal
Adder_(electronics)
Increasing processor speed beyond specification
implement hardware settings from the user (e.g., overclocked settings) Dynamic voltage scaling POWER8 on-chip controller (OCC) Serial presence detect (SPD) Super
Overclocking
Processor design concept
Analog Quantum Switch Power management PMU APM ACPI Dynamic frequency scaling Dynamic voltage scaling Clock gating Performance per watt (PPW) Related History
Translation_lookaside_buffer
Power-saving technique for circuits
contents of the power gating block and when to restore it back. Dynamic voltage scaling Power ramp Power network design (IC) Autonomous peripheral operation
Power_gating
Production of waste heat by computer processors
following: Voltage reduction – dual-voltage CPUs, dynamic voltage scaling, undervolting, etc. Frequency reduction – underclocking, dynamic frequency scaling, etc
Processor_power_dissipation
Type of digital adder
Analog Quantum Switch Power management PMU APM ACPI Dynamic frequency scaling Dynamic voltage scaling Clock gating Performance per watt (PPW) Related History
Carry-save_adder
Digital electronic system with no global clock signal
at variable speeds, whether due to data-dependent processing, dynamic voltage scaling, or process variation. The modules can then be combined to form
Asynchronous_system
Method of CPU communication
Analog Quantum Switch Power management PMU APM ACPI Dynamic frequency scaling Dynamic voltage scaling Clock gating Performance per watt (PPW) Related History
Memory-mapped I/O and port-mapped I/O
Memory-mapped_I/O_and_port-mapped_I/O
Combinational digital circuit
are represented by integers. Consequently, for any particular fixed-point scale factor (or implied radix point position), an ALU can directly add or subtract
Arithmetic_logic_unit
Type of computer memory
; Radens, C. J. (2002). "Challenges and future directions for the scaling of dynamic random-access memory (DRAM)". IBM Journal of Research and Development
Dynamic_random-access_memory
Security-related instruction code processor extension
remotely, but requires access to the privileged control of the processor's voltage and frequency. A security advisory and mitigation for this attack was originally
Software_Guard_Extensions
Register in a computer's CPU
Analog Quantum Switch Power management PMU APM ACPI Dynamic frequency scaling Dynamic voltage scaling Clock gating Performance per watt (PPW) Related History
Memory_buffer_register
vibration. Two power saving policies used are Dynamic Power Management (DPM) and Dynamic Voltage Scaling (DVS). DPM conserves power by shutting down parts
Sensor_node
Type of computer memory introduced 2014
about the increasing die area consumption due to non-scaling analog elements like charge pumps, voltage regulators, and additional circuitry. These components
DDR4_SDRAM
Electrical circuit
power in radio frequency circuits Scaling a large dynamic range sensor (e.g. from a photodiode) into a linear voltage scale for an analog-to-digital converter
Log_amplifier
Analog Quantum Switch Power management PMU APM ACPI Dynamic frequency scaling Dynamic voltage scaling Clock gating Performance per watt (PPW) Related History
Redundant binary representation
Redundant_binary_representation
Dynamic frequency scaling technology by AMD
was AMD's dynamic frequency scaling and power saving technology targeted at mobile and embedded microprocessors. It allows for the core voltage and frequency
PowerNow!
Computer hardware technology
Manufacturer Control The dynamic chain of trust starts when the operating system invokes a special security instruction, which resets dynamic PCRs (PCR17–22) to
Trusted_Execution_Technology
System designed to maintain a constant voltage
A voltage regulator is a system designed to automatically maintain a constant voltage. It may use a simple feed-forward design or may include negative
Voltage_regulator
Electronic component
applications and musical pedal-effect circuits). To increase the dynamic range of the input voltage, maintain a constant resistance over the input signal range
Voltage-controlled_resistor
Electronic component
a. voltage-dependent resistor (VDR)) is a surge protecting electronic component with an electrical resistance that varies with the applied voltage. It
Varistor
Circuit that performs subtraction
Analog Quantum Switch Power management PMU APM ACPI Dynamic frequency scaling Dynamic voltage scaling Clock gating Performance per watt (PPW) Related History
Subtractor
power/performance tradeoffs. Dynamic voltage scaling (DVS): The supply voltage of the processor is adjusted statically or dynamically to achieve different
Energy_proportional_computing
Power management technique for synchronous digital circuits
gating Glitch removal Dynamic frequency scaling Autonomous peripheral operation Benini, Luca; DeMicheli, Giovanni (2012). Dynamic Power Management: Design
Clock_gating
Logarithmic unit expressing the ratio of physical quantities
ratios, two principal types of scaling of the decibel are used to provide consistency depending on whether the scaling refers to ratios of power quantities
Decibel
Power management technique in computers
Enhanced SpeedStep is a series of dynamic frequency scaling technologies (codenamed Geyserville and including SpeedStep, SpeedStep II, and SpeedStep III)
SpeedStep
Ratio of the desired signal to the background noise
example, RMS voltage). Because many signals have a very wide dynamic range, signals are often expressed using the logarithmic decibel scale. Based upon
Signal-to-noise_ratio
Dynamic frequency scaling technology
Precision Boost (PB), is a dynamic frequency scaling technology developed by AMD, and implemented in their CPUs. CPB dynamically adjust a processor's clock
AMD_Turbo_Core
Topics referred to by the same term
refer to: Delaware Valley Friends School, Pennsylvania, US Dynamic voltage and frequency scaling, a power management technique in computer architecture This
DVFS
Device that converts sound into an electrical signal
common with other classes of dynamic microphones, ribbon microphones do not require phantom power; in fact, this voltage can damage some older ribbon
Microphone
Power saving mode of modern processors by Advanced Micro Devices
AMD Cool'n'Quiet is a CPU dynamic frequency scaling and power saving technology introduced by AMD with its Athlon XP processor line. It works by reducing
Cool'n'Quiet
Wireless sensor network mote
added to the motherboard on P1, P2 connectors. This board provides dynamic voltage scaling and hardware acceleration to increase the energy efficiency of
PowWow
Type of computer memory
Double Data Rate 5 Synchronous Dynamic Random-Access Memory (DDR5 SDRAM) is a type of synchronous dynamic random-access memory. Compared to its predecessor
DDR5_SDRAM
Technology for constructing integrated circuits
because of two components, static and dynamic: Both NMOS and PMOS transistors have a gate–source threshold voltage (Vth), below which the current (called
CMOS
Observation on the growth of integrated circuit capacity
Dennard at IBM recognized the rapid MOSFET scaling technology and formulated what became known as Dennard scaling, which describes that as MOS transistors
Moore's_law
circuits that can be made using transistors that obey an exponential current-voltage characteristic—this includes bipolar junction transistors (BJTs) and CMOS
Translinear_circuit
Image luminance mapping function
scaling software sucks/rules" image based on this principle. In addition to scaling, the problem also applies to other forms of downsampling (scaling
Gamma_correction
Law of electrical current and voltage
point) of the voltage (that is, one over the derivative of current with respect to voltage). For sufficiently small signals, the dynamic resistance allows
Ohm's_law
DC-to-DC power converter with an output voltage greater than its input voltage
converter or step-up converter is a DC-to-DC converter that increases voltage, while decreasing current, from its input (supply) to its output (load)
Boost_converter
Electronic measuring instrument that combines several measurement functions in one unit
measure multiple electrical properties. A typical multimeter can measure voltage, resistance, and current, in which case can be used as a voltmeter, ohmmeter
Multimeter
Reliability test applied to integrated circuits
reliability. This test stresses the IC at an elevated temperature, high voltage and dynamic operation for a predefined period of time. The IC is usually monitored
High-temperature operating life
High-temperature_operating_life
Device that compares two voltages or currents
In electronics, a comparator is a device that compares two voltages or currents and outputs a digital signal indicating which is larger. It has two analog
Comparator
System that converts an analog signal into a digital signal
device that converts an analog input voltage or current to a digital number representing the magnitude of the voltage or current. Typically, the digital
Analog-to-digital_converter
Electronic component
transmission systems, they stabilize voltage and power flow. The property of energy storage in capacitors was exploited as dynamic memory in early digital computers
Capacitor
Modeling semiconductor behavior
the capacitances—both intrinsic and parasitic—that affect dynamic performance. The power scaling which is now a major driving force in the industry is reflected
Semiconductor_device_modeling
American electrical engineer (1932–2024)
billion. Dennard Scaling Dennard was also among the first to recognize the tremendous potential of downsizing MOSFETs. The scaling theory he and his
Robert_H._Dennard
Ratio between the largest and smallest values that a certain quantity can assume
have a relatively high dynamic range. However, a human cannot perform these feats of perception at both extremes of the scale at the same time. The human
Dynamic_range
Bulk movement of electrical energy
transmission, the voltage is often increased for transmission, then reduced for local distribution. This is because higher voltages corresponds to lower
Electric_power_transmission
Functional relationship between two quantities
The equivalence of power laws with a particular scaling exponent can have a deeper origin in the dynamical processes that generate the power-law relation
Power_law
Electronic signal to synchronize circuits
a clock generator that dynamically changes its frequency, such as spread-spectrum clock generation, dynamic frequency scaling, etc. Devices that use static
Clock_signal
Digital electronic term
the output is a logic high or low voltage level) by all of the connected inputs, while maintaining the output voltage specifications. For each logic family
Fan-out
Above-ground structure for bulk transfer and distribution of electricity
glass fiber), though some copper wires are used in medium-voltage distribution and low-voltage connections to customer premises. A major goal of overhead
Overhead_power_line
Computer format for representing real numbers
multiplied by a fixed scaling factor. For example, the value 1.23 can be stored in a variable as the integer value 123 with an implicit scaling factor of 1/100
Fixed-point_arithmetic
Final stage of electricity delivery to individual consumers in a power grid
transmission voltage to medium voltage ranging between 2 kV and 33 kV with the use of transformers. Primary distribution lines carry this medium voltage power
Electric_power_distribution
Instrument which indicates force strength
cells, but a voltage output is generated by the basic piezoelectric material – proportional to the deformation of load cell. Useful for dynamic/frequent measurements
Load_cell
corresponding to the local slope of the plate characteristic (dynamic plate resistance, dV/dI). Diode voltages can be determied by use of a graphical aide. In capacitor-input
Vacuum_tube_characteristics
Interconnected network for delivering electricity to consumers
Electrical grids consist of power stations, electrical substations to step voltage up or down, electric power transmission to carry power over long distances
Electrical_grid
Electronic device/component that increases the strength of a signal
electronic device that can increase the magnitude of a signal (a time-varying voltage or current). It is a two-port electronic circuit that uses electric power
Amplifier
Effect in field-effect transistors
circuit topologies the source voltage varies dynamically while the substrate is kept at a global reference potential. This voltage difference alters the internal
Body_effect
power. Voltage scaling: lower supply voltages use less power, but go slower. Voltage islands: Different blocks can be run at different voltages, saving
Power_optimization_(EDA)
Protein
Genetically encoded voltage indicator (or GEVI) is a protein that can sense membrane potential in a cell and relate the change in voltage to a form of output
Genetically encoded voltage indicator
Genetically_encoded_voltage_indicator
Nonlinear two-terminal fundamental circuit element
has a dynamic relationship between current and voltage, including a memory of past voltages or currents. Other scientists had proposed dynamic memory
Memristor
Vacuum tube used to display images
a quadrupole lens with dynamic focus to alter the shape and adjust the focus of the electron beam, varying the focus voltage depending on the position
Cathode_ray_tube
Automatic circuit protection device
individual household appliances, to switchgear designed to protect high-voltage circuits feeding an entire city. Any device which protects against excessive
Circuit_breaker
Electrical device that uses batteries to prevent any interruption of power flow
system Fuel cell applications IT baseline protection Power conditioner Dynamic voltage restoration Net metering system with energy storage Surge protector
Uninterruptible_power_supply
Multidisciplinary field of engineering
MOSFET scaling, the miniaturisation of MOSFETs on IC chips, led to the miniaturisation of electronics (as predicted by Moore's law and Dennard scaling). This
Electromechanics
Electrical resonant transformer circuit invented by Nikola Tesla
designed by inventor Nikola Tesla in 1891. It is used to produce high voltage, low current, high frequency alternating current. Tesla experimented with
Tesla_coil
Iranian-American engineer
System/390 servers. Dr. Davari defined the roadmap for technology and voltage scaling for IBM which influenced the CMOS roadmap for the industry down to
Bijan_Davari
Term in electrical engineering
affect the grid in a significant way. SCMVA is defined as a product of the voltage before the 3LG fault and the current that would flow after the fault (this
Short circuit ratio (electrical grid)
Short_circuit_ratio_(electrical_grid)
Topical index of English Wikipedia articles about metrology and measurement
machine Pratt & Whitney Measurement Systems ISO 16610 ISO 25178 Josephson voltage standard Metre Convention Unified Code for Units of Measure International
Outline of metrology and measurement
Outline_of_metrology_and_measurement
Higher level of microcode
Analog Quantum Switch Power management PMU APM ACPI Dynamic frequency scaling Dynamic voltage scaling Clock gating Performance per watt (PPW) Related History
Millicode
Ratio of active power to apparent power
the circuit. Real power is the average of the instantaneous product of voltage and current and represents the capacity of the electricity for performing
Power_factor
Device measuring electrical waves on a power grid
the magnitude and phase angle of an electrical phasor quantity (such as voltage or current) in the electricity grid using a common time source for synchronization
Phasor_measurement_unit
Technology for splitting water molecules
the production of hydrogen to be used as an energy carrier. With fast dynamic response times, large operational ranges, and high efficiencies, water
Proton exchange membrane electrolysis
Proton_exchange_membrane_electrolysis
Device for electrical connection
the user to introduce an offset voltage to allow measurement of voltages with excessive DC level. The total dynamic range is still limited, but the user
Test_probe
Glass with electrically switchable opacity
Smart glass, also known as switchable glass, dynamic glass, and smart-tinting glass, is a type of glass that can change its optical properties, becoming
Smart_glass
Converter that measures a physical quantity and converts it into a signal
measured property. For example, if a sensor measures temperature and has a voltage output, the sensitivity is constant with the units [V/K]. The sensitivity
Sensor
Heterogeneous computing architecture
transparently to the operating system using the existing dynamic voltage and frequency scaling (DVFS) facility. The existing DVFS support in the kernel
ARM_big.LITTLE
Audio signal processing operation
Dynamic range compression (DRC) or simply compression, is an audio signal processing operation that reduces the volume of loud sounds or amplifies quiet
Dynamic_range_compression
Relation of types of systems with corresponding dynamics
voltage. This analogy became so widespread that sources of voltage are still today referred to as electromotive force. The power conjugate of voltage
Analogical_models
Type of active circuit electronic filter
include both voltages and currents. The branch gains will include impedances and admittances. Convert all nodes of the signal-flow graph to voltages and all
Leapfrog_filter
Physical characteristic of oscillating systems
(\omega )}.} A sinusoidal input voltage at frequency ω results in an output voltage at the same frequency that has been scaled by G(ω) and has a phase shift
Resonance
Mathematical descriptions of the properties of certain cells in the nervous system
Richardson MJ (February 2008). "Dynamic I-V curves are reliable predictors of naturalistic pyramidal-neuron voltage traces". Journal of Neurophysiology
Biological_neuron_model
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