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Showing 1 to 20 of 50 for “"voltage regulators"”.
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Advanced Control Schemes for Voltage Regulators
… architecture. These are closely related to the Voltage Regulator (VR), a dedicated power supply for the microprocessor and its control method. The speed of the VR control system should be high in order to meet the stringent load-line requirements with the high current and high di/dt, otherwise, …
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High Frequency, High Current Density Voltage Regulators
As a very special DC-DC converter, VRM (Voltage Regulator Module) design must follow the fast-developing trend of microprocessors. The design challenges are the high current, high di/dt, and stringent load-line requirement. When the energy is transferred from the input of a VRM, through the VRM, …
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Integrated Voltage Regulators with Thin-Film Magnetic Power Inductors
… with on-chip power inductors. Integrated voltage reg- ulators will also enable fine-grained power management, by providing dynamic scaling of the supply voltage in concert with the clock frequency of synchronous logic to throttle power consumption at periods of low computational demand. …
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Advanced Control Schemes for High-Bandwidth Multiphase Voltage Regulators
… the control bandwidth (BW) of the multiphase voltage regulator (VR) is a more cost-effective and space-saving approach. However, it is found that the stability margin of current-mode control in high-BW design is very sensitive to operating conditions and component tolerance, depending on the …
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Investigation of Alternative Power Architectures for CPU Voltage Regulators
… with Moore's law, there are still challenges for voltage regulators (VRs). Firstly, high efficiency is required not only for easy thermal management, but also for saving on electricity costs for data centers, or battery life extension for laptop computers. At the same time, high power density is …
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High Frequency High-Efficiency Voltage Regulators for Future Microprocessors
… to provide the power as quickly as possible, the voltage regulator (VR), a dedicated DC-DC converter, is placed in close proximity to power the processor. At first, VRs drew power from the 5V output of the silver box. As the power delivered through the VR increased so dramatically, it became no …
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A Novel Inverse Charge Constant On-Time Control for High Performance Voltage Regulators
… large core count. From the standpoint of its voltage regulator (VR) design, it must have very good efficiency at light loads, while also supporting a very fast transient response. Thus, the variable-frequency constant on-time current-mode (COTCM) control scheme is widely used in the VRs, as it …
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Fully Distributed Control and Its Analog IC Design For Scalable Multiphase Voltage Regulators
Modern microprocessors require low supply voltage (about 1V), but very high current (maximum current is 300A in servers, 100A in desktop PCs and 70A in notebook PCs), and tighter voltage regulation. However, the size of a CPU Voltage Regulator (VR) needs to be reduced. To achieve much higher power …
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Functional verification and timing analysis of large digital emitter-coupled logic circuits including voltage regulators
… the circuit into blocks at base nodes and voltage source nodes to exploit latency in time and space. Blocks are identified as either voltage source blocks or switching blocks automatically. The voltage source blocks are simulated at dc only to accurately calculate reference voltages.
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Permeability Spectra of Electrodeposited CoFe Film for Inductor Applications
… of passive components like inductors and voltage regulators presents challenges. Research trends have focused on RF and power electronics applications for Micro Electromechanical Devices (MEMs), with promising growth in biomedical, neurotechnology, and wireless/sensor applications. Power …
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High Performance Digital Control Techniques for Powering Microprocessors
… in which processors closely interact with voltage regulators are becoming necessary to enhance system energy efficiency. Digital techniques offer advantages such as flexibility, fewer external components and reduced overall cost as compared to conventional analog techniques. The primary …
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A Real-time Management of Distribution Voltage Fluctuations due to High Solar Photovoltaic (PV) Penetrations
… challenges. High PV penetration can create overvoltages and voltage fluctuations in the network, which are major concerns for the grid operator. Traditional voltage control devices like switched capacitor banks or line voltage regulators can alleviate slow-moving fluctuations, but these devices …
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Modeling of Integrated Voltage Regulator Power delivery systems
… Integration of on chip inductive DC-DC voltage regulators has become a popular way to design SOCs with improved power efficiency and performance. Such distributed power systems are highly complex because of their multi parametric interactive behavior. The various parameters encompass the …
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On-chip Voltage Regulator– Circuit Design and Automation
… and regulation requirements with off-chip regulators. The off-chip regulators become a less attractive choice because of the higher overheads and complexity imposed by the additional wires, pins, and pads. The increased I2R loss makes it challenging to maintain the integrity of different …
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Semi-Automated Switching Regulator Modeling Method and Tool
… the behavioral modeling process for switching voltage regulators. These regulators are commonly used in many application areas including discrete use in larger systems, integrated in a System on a Chip (SoC), or as the primary use case for a design. When used in an integrated system these …
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A Two-Stage Piezoelectric Resonator and Switched Capacitor DC-DC Converter
… power density capabilities operating as dc-dc voltage regulators, but that these advantages wane for high step down ratios. Alternatively, utilizing capacitors in a switch capacitor (SC) network can provide high step down ratios with high power densities and efficiencies, but only for specific …
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Inter-Area Oscillation Damping with Power System Stabilizers and Synchronized Phasor Measurements
… of power system stabilizers to the automatic voltage regulators on the generators in the power system. The damping provided by this additional stabilizer provides the means to reduce the inhibiting effects of the oscillations. This thesis is an investigation of the use of synchronized phasor …
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Enhancing PV Hosting Capacity of Distribution Feeders using Voltage Profile Design
… power to the customers. These feeders experience voltage drops due to a combination of feeder length, load distribution, and other factors. Traditionally, voltage drop was a major concern. Now, due to an ever-increasing PV penetration, overvoltage has also become a major concern. This limits the …
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Hierarchical Fuzzy Control of the UPFC and SVC located in AEP's Inez Area
… controllers in the system include the Automatic Voltage Regulators (AVRs) of the generators, the controllers of the SVC, and UPFC. To coordinate the control actions of these controllers and prevent voltage instability resulting from their fighting against each other, a two level hierarchical …
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