Robust and Efficient Transistor-Level Envelope-Following Analysis of PWM/PFM/PSM DC-DC Converters

Ya, Wang; Lai, Shaoyong

doi:10.1109/tcad.2016.2524565

Cited by 4 publications

(3 citation statements)

References 13 publications

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“…Pulse skipping mode is a novel modulation mode different from PWM and PFM, which are based on a constant‐frequency constant‐width (CFCW) control pulse signal . PSR fly‐back converters use sense voltage on a bias winding, coupled with the primary side winding as the feedback voltage, to form a closed‐loop control.…”

Section: Principle Of Psr Fly‐back Psm Modulationmentioning

confidence: 99%

Research of the adaptive control on modulation factor for PSR fly‐back PSM converter

Tian

Wang

2018

ETRI Journal

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The energy balance (EB) model of a primary side regulation (PSR) fly‐back converter in the discontinuous conduction mode (DCM) is discussed in this paper. Based on this EB model, the stability of a PSR fly‐back converter in the pulse skipping mode (PSM) is analyzed, and a self‐adapting modulation factor control strategy is proposed. Theoretical analysis and simulation results show that by saving an optocoupler and correlative circuits, which are necessary in traditional PSM fly‐back converters, the modulation factor tolerance controlled by this method is 1.26% on average, corresponding to the ideal value. Compared with traditional fly‐back PSM controllers, the power saved in the sampler/comparator modules is 87% on average for a load range of 1 Ω to 1 kΩ.

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Section: Principle Of Psr Fly‐back Psm Modulationmentioning

confidence: 99%

Research of the adaptive control on modulation factor for PSR fly‐back PSM converter

Tian

Wang

2018

ETRI Journal

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“…In this technique, the rate of switching used for triggering the converter is controlled by comparing it with the low-frequency signal. In this technique, the peak value of the output current is maintained constant and the average current varies, which in turn, the color of the LED is maintained (Wang et al, 2016a). A general block diagram of the various converter topologies and modulation techniques is illustrated in Figure 1.…”

Section: Introductionmentioning

confidence: 99%

A comprehensive review on various non-isolated power converter topologies for a light-emitting diode driver

et al. 2022

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Light-emitting diode (LED) lighting applications aided by an electronic power control have become very attractive in the recent years. For LED lighting applications, it is essential to design a converter with single/multi-output for handling multiple loads. As the LED load is more sensitive to the change in input/converter parameters, it is necessary to regulate the current concerning the design specifications. In this paper, several LED topologies are reviewed with a focus on power density, single/multi-load operation, size, and reliability. Several converter topologies are reviewed and compared in terms of power rating, number of semiconductor switches, isolation, and efficiency. Various modulation techniques used for dimming control are described in brief. The salient features of each converter topology are discussed with the power rating and application for which the topology can be preferred. So, the selection of the power factor correction (PFC) and low source side harmonics converter topology is presented. This paper will be helpful to the researchers who are working on the development of LED drivers.

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“…The selection of the proper optimal components value [9]. The power switching devices modulation [12].…”

Section: Introductionmentioning

confidence: 99%

Effect of Pulses Distribution in a Buck Converter Controlled with Pulse Skipping Modulation

Ciani

Catelani

Bartolini

et al. 2021

2021 IEEE 15th International Conference on Compatibility, Power Electronics and Power Engineering (CPE-POWERENG)

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Nowadays, Wireless Sensor Networks are more and more applied in different fields. Generally, sensor nodes used in wireless sensor networks are powered by batteries and photovoltaic panels. Consequently, the design of an efficient DC-DC converter represents a critical aspect in order to ensure high efficiency and minimize losses. Moreover, it is fundamental to design a DC-DC converter able to ensure high efficiency also in case of light load. Trying to solve these needs, this paper evaluates the advantages of the Pulse Skipping Modulation (PSM) in a prototype of a Buck converter. Different pulses distributions are compared and analyzed. A comparison in terms of output voltage ripple and DC-DC conversion efficiency is presented and discussed. The output voltage waveforms in four different scenarios at different operating condition are shown. The experimental results are obtained through a developed printed circuit board driven by an ESP 32 microcontroller and a suitable algorithm.

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Robust and Efficient Transistor-Level Envelope-Following Analysis of PWM/PFM/PSM DC-DC Converters

Cited by 4 publications

References 13 publications

Research of the adaptive control on modulation factor for PSR fly‐back PSM converter

Research of the adaptive control on modulation factor for PSR fly‐back PSM converter

A comprehensive review on various non-isolated power converter topologies for a light-emitting diode driver

Effect of Pulses Distribution in a Buck Converter Controlled with Pulse Skipping Modulation

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