A Transient-Enhanced Voltage Regulator with Stability and Power-Supply-Rejection Boosting

Shi, Yue; Wang, Anqi; Cao, Jianwen; Zhou, Zekun

doi:10.1186/s11671-019-3215-4

Cited by 4 publications

(3 citation statements)

References 30 publications

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“…The coefficients of A v LR and A v M AL are equated to solve the following equations simultaneously: Then, the physical parameters, i.e., C gs R oa , C gs R oa g m , g m , and G ea g m , are estimated. Thereafter, these estimated physical parameters are substituted into the Z out CL (z) model, as shown in (2). Moreover, parameters that are easy to measure and obtain, such as R 1 , R 2 , C out , and r ds , are also substituted by their measured values in (2).…”

Section: E Physical Parameter Estimationmentioning

confidence: 99%

“…Thereafter, these estimated physical parameters are substituted into the Z out CL (z) model, as shown in (2). Moreover, parameters that are easy to measure and obtain, such as R 1 , R 2 , C out , and r ds , are also substituted by their measured values in (2). Finally, a complete estimated Z out CL (z) is obtained.…”

Section: E Physical Parameter Estimationmentioning

confidence: 99%

“…All of these effects degrade the performance of electronic devices. Therefore, LVRs must be able to maintain a steady output voltage and be unaffected by changes in conditions [2].…”

Section: Introductionmentioning

confidence: 99%

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Physical Parameter Estimation of Linear Voltage Regulators using Model-based Approach

Luet¹,

Hairi²,

Mohamed³

et al. 2020

IJACSA

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Electronic systems are becoming increasingly sophisticated due to the emergence of advanced technology, which can produce robust integrated circuits by reducing the dimensions of transistors to just a few nanometers. Furthermore, most electronic systems nowadays are in the form of system-on-chip and thus require stable voltage specifications. One of the critical electronic components is the linear voltage regulator (LVR). LVRs are types of power converter used to maintain a stable and constant DC voltage to the load. Therefore, LVR stability is an essential aspect of voltage regulator design. The main factor influencing the stability of LVRs is the load disturbance. In general, disturbances such as a sudden change in load current can be compensated for by an output capacitor, which, contains a parasitic element known as equivalent series resistance (ESR). Therefore, the ESR and output capacitor specified in the datasheet is essential to compensate for load disturbance. However, LVR manufacturers typically do not provide detailed information, such as the internal physical parameters associated with the LVR in the datasheet. This situation leads to difficulties in identifying the behavior and stability of LVR. Therefore, this study aims to develop a method for estimating the internal physical parameters of LVR circuits that are difficult to measure directly by using a model-based approach (MBA). In this study, the MBA estimates the LVR model transfer function by analyzing the input and output signals via a linear regression method. Simulations through MATLAB and OrCAD Capture CIS software verify the estimated LVR model transfer function. Results show that the MBA has an excellent performance in estimating the physical parameters of LVRs and determining their stability.

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Section: E Physical Parameter Estimationmentioning

confidence: 99%

Section: E Physical Parameter Estimationmentioning

confidence: 99%

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Physical Parameter Estimation of Linear Voltage Regulators using Model-based Approach

Luet¹,

Hairi²,

Mohamed³

et al. 2020

IJACSA

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A fast transient response low-dropout regulator with all-NPN push–pull buffer in 0.6-μm bipolar process

Zhang

Ren

Wang

et al. 2022

Analog Integr Circ Sig Process

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Real time Capacitance and Absorption Based Voltage Regulation Model for Improved Power Stabilization with Cuk Converter

Vij,

Divya

2024

E3S Web of Conf.

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The problem of voltage regulation in power systems has been well studied. There exist numbers of stabilization model discussed in literature which consider input and output voltage. The methods suffer to achieve higher performance in power stabilization. To handle this issue, an efficient Real-time Capacitance and Absorption based voltage regulation model (RCAVRM) is presented in this paper. The model has been fabricated with different MOFSET and cuk converter connected in serial where the Mofset are designed to maintain the traces of voltage present in different capacitors and inductors. At each duty cycle, the method collects the number of circuits being used and number of other circuits not triggered. Based on these details, the method computes Capacitance Power Stabilization Factor (CPSF) and Voltage Absorption Factor (VAF). Using these two factors, the method computes the value of power stabilization weight (PSW) for different circuits. Based on the value of PSW, a unique circuit is selected to regulate the power supply to the electric system. The proposed model improves the performance of power stabilization with least voltage loss.

show abstract

A Transient-Enhanced Voltage Regulator with Stability and Power-Supply-Rejection Boosting

Cited by 4 publications

References 30 publications

Physical Parameter Estimation of Linear Voltage Regulators using Model-based Approach

Physical Parameter Estimation of Linear Voltage Regulators using Model-based Approach

A fast transient response low-dropout regulator with all-NPN push–pull buffer in 0.6-μm bipolar process

Real time Capacitance and Absorption Based Voltage Regulation Model for Improved Power Stabilization with Cuk Converter

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