An Accurate, Low-Voltage, CMOS Switching Power Supply With Adaptive On-Time Pulse-Frequency Modulation (PFM) Control

Sahu, B.; Rincón-Mora, Gabriel A.

doi:10.1109/tcsi.2006.887472

Cited by 204 publications

(90 citation statements)

References 6 publications

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“…Pulse frequency modulation (PFM) control techniques, which are based on a hysteresis control of the output voltage, are used to achieve a low power consumption of the converter and then a high efficiency with light loads [13]. Fig.…”

Section: B Dc/dc Conversion and Pfm Controlmentioning

confidence: 99%

A New MPPT Method for Low-Power Solar Energy Harvesting

López-Lapeña

Penella

Gasulla

2010

IEEE Trans. Ind. Electron.

180

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Abstract-This paper describes a new maximum-power-pointtracking (MPPT) method focused on low-power (< 1 W) photovoltaic (PV) panels. The static and dynamic performance is theoretically analyzed, and design criteria are provided. A prototype was implemented with a 500-mW PV panel, a commercial boost converter, and low-power components for the MPPT controller. Laboratory measurements were performed to assess the effectiveness of the proposed method. Tracking efficiency was higher than 99.6%. The overall efficiency was higher than 92% for a PV panel power higher than 100 mW. This is, in part, feasible due to the low power consumption of the MPPT controller, which was kept lower than 350 μW. The time response of the tracking circuit was tested to be around 1 s. Field measurements showed energy gains higher than 10.3% with respect to a direct-coupled solution for an ambient temperature of 26• C. Higher gains are expected for lower temperatures. Index Terms-Energy harvesting, maximum power point tracking (MPPT), solar cells, wireless sensor networks (WSNs).

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Section: B Dc/dc Conversion and Pfm Controlmentioning

confidence: 99%

A New MPPT Method for Low-Power Solar Energy Harvesting

López-Lapeña

Penella

Gasulla

2010

IEEE Trans. Ind. Electron.

180

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“…Since the traditional offline isolation LED lighting methods always use signals feedbacking from the secondary side of the transformer, as shown in reference [5,11] and [12], a complex application environment is needed for improving the cost of the whole circuit and blocking the widely use of the green lighting. Consequently, the primary-side PFM constant current control methods are introduced, which are shown below.…”

Section: Methods Descriptionmentioning

confidence: 99%

“…Flyback converter can operate in pulse frequency modulation (PFM) mode [4][5][6], pulse width modulation (PWM) mode [7][8][9] and pulse skip modulation (PSM) mode. In order to improve efficiency, most AC-DC converters work in PWM mode on the heavy load (constant current) state, and in PFM mode or PSM mode on the light load (constant voltage) state.…”

Section: Introductionmentioning

confidence: 99%

An Offline Current-Mode PFM Controller for Low Power Residential LED Lighting with Primary-Side Constant Current Regulation Techniques

Zhao

Lai

2013

IJSH

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“…2(a) [5]. The power MOSFETs produce an ac signal at node A by a signal controlled by a pulse width modulator (PWM) [8], [9], as shown in Fig. 2(b).…”

Section: Introductionmentioning

confidence: 99%

A Distributed Filter Within a Switching Converter for Application to 3-D Integrated Circuits

Rosenfeld

Friedman

2011

IEEE Trans. VLSI Syst.

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Abstract-A design methodology for distributing a buck converter filter for application to 3-D circuits is described. The 3-D filter exploits transmission line properties, permitting the generation and distribution of power supplies to different planes. As compared to a conventional LC filter, the proposed filter only requires on-chip capacitors without the use of on-chip inductors. Additionally, the physical structure of the filter simultaneously enables the distribution of the current to the load while filtering the switching signal at the input. A case study in a 0.18-m CMOS 3-D technology demonstrates the generation of a 1.2 V power supply delivering 700 mA peak current.

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An Accurate, Low-Voltage, CMOS Switching Power Supply With Adaptive On-Time Pulse-Frequency Modulation (PFM) Control

Cited by 204 publications

References 6 publications

A New MPPT Method for Low-Power Solar Energy Harvesting

A New MPPT Method for Low-Power Solar Energy Harvesting

An Offline Current-Mode PFM Controller for Low Power Residential LED Lighting with Primary-Side Constant Current Regulation Techniques

A Distributed Filter Within a Switching Converter for Application to 3-D Integrated Circuits

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