Dynamic voltage scaling and power management for portable systems

2001 ◽  
Author(s):  
Tajana Simunic ◽  
Luca Benini ◽  
Andrea Acquaviva ◽  
Peter Glynn ◽  
Giovanni De Micheli
Keyword(s):  
Power Management ◽  
Voltage Scaling ◽  
Dynamic Voltage Scaling ◽  
Dynamic Voltage

scholarly journals Dynamic Voltage Scaling With Reduced Frequency Switching And Preemptions

2012 ◽  
pp. 10-14
Author(s):  
Arya Lekshmi Mohan ◽  
Anju S. Pillai
Keyword(s):  
Power Consumption ◽  
Power Management ◽  
Voltage Scaling ◽  
Dynamic Voltage Scaling ◽  
Discrete Frequency ◽  
Cpu Time ◽  
Innovative Technique ◽  
Reduced Frequency ◽  
Dynamic Voltage

Dynamic Voltage Scaling is an innovative technique for reducing the power consumption of a processor by utilizing its hardware functionality. Dynamic Voltage Scaling processors are mainly focusing on power management. Such processors can be switch between discrete frequency and voltage levels. The main challenges of Dynamic Voltage Scaling are increased number of preemptions and frequency switching. A part of dynamic energy as well as CPU time is lost due to these processes. To limit such processes, an algorithm is proposed which reduces both unwanted frequency switching and preemptions.

A Near-Optimum Dynamic Voltage Scaling (DVS) in 65-nm Energy-Efficient Power Management With Frequency-Based Control (FBC) for SoC System

2012 ◽  
Vol 47 (11) ◽  
pp. 2563-2575 ◽  
Author(s):  
Yu-Huei Lee ◽  
Chao-Chang Chiu ◽  
Shen-Yu Peng ◽  
Ke-Horng Chen ◽  
Ying-Hsi Lin ◽  
...  
Keyword(s):  
Power Management ◽  
Energy Efficient ◽  
Voltage Scaling ◽  
Dynamic Voltage Scaling ◽  
Dynamic Voltage ◽  
Efficient Power

scholarly journals Comparison of Dynamic Voltage Scaling (DVS) of Core Voltage Using the On-board Voltage Regulator and External Voltage Regulator via I2C Protocol in Automotive Micro controller

2021 ◽  
Vol 23 (06) ◽  
pp. 794-804
Author(s):  
Kiran Guruprasad Shetty P S ◽  
◽  
Dr. Ravish Aradhya H V ◽  
Eswar Goda ◽  
◽  
...  
Keyword(s):  
Power Management ◽  
Integrated Circuit ◽  
Supply Voltage ◽  
Voltage Scaling ◽  
Dynamic Voltage Scaling ◽  
Voltage Regulator ◽  
External Voltage ◽  
The Core ◽  
Control Command ◽  
Dynamic Voltage

Dynamic Voltage Scaling is performed on automotive micro-controller AURIX from Infineon Technologies. In this micro-controller the core and different IPs operate on the 1.25 V supply rail, so dynamically voltage is changed according to the workload in the micro-controller. DVS is done either using an internal onboard voltage regulator or an external voltage regulator. An External board (KITPF3000FRDMEV), which has a controller and a Power Management Integrated Circuit (PMIC) is used for changing the supply voltage to the micro-controller during DVS using an external voltage regulator. The micro-controller is predicting the workload and according to workload, the control command is sent to the controller (FRDM-KL25) in the kit through I2C communication and then the controller sends the command to adjust the voltage of PMIC (PF3000) through I2C communication. Both current measurements for the internal voltage regulator and external voltage regulator are measured for various loads and latency is measured for various baud rates while using external voltage regulator through I2C protocol.

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