Theoretical Study and Implementation of a Fast Transient Response Hybrid Power Supply

Barrado, A.; Vázquez, R.; Olías, E.; Lázaro, A.; Pleite, J.

doi:10.1109/tpel.2004.830034

Cited by 39 publications

(41 citation statements)

References 7 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…However, they are significantly different. The first one (that we will denominate 'A' and is reported in previous literature [12], [13]), tries to cancel completely the current through the linear regulator in the steady state in order to achieve a reduction of the losses. Thus the efficiency of the whole system increases and almost equals the one of the switching converter.…”

Section: Introductionmentioning

confidence: 99%

Capacitorless DC-DC Regulator as a Candidate Topology for Photovoltaic Solar Facilities

García

2024

RE&PQJ

View full text Add to dashboard Cite

Abstract. Linear-assisted DC/DC converters (or linearswitching hybrid DC/DC converters) consist of a voltage linear regulator (classic NPN or nMOS topologies and LDO) connected in parallel with a switching DC/DC converter. They are a good candidate for energy processing in photovoltaic solar facilities. In order to control these hybrid structures, different strategies exist, allowing fixing the switching frequency as a function of some parameters of the linear regulator. This article compares two control strategies that, although can be applied to the same circuital structure of linear-assisted converter, are sensibly different. The first one, reported in previous literature, cancels completely the average current through the linear regulator in steady state to achieve a reduction of the losses. Thus the efficiency of the whole system increases and almost equals the one of the standalone switching converter. The proposed approach, in spite of a slightly increment of linear regulator's losses, reduces the output ripple due to the crossover distortion of linear regulator output stage.

show abstract

Section: Introductionmentioning

confidence: 99%

Capacitorless DC-DC Regulator as a Candidate Topology for Photovoltaic Solar Facilities

García

2024

RE&PQJ

View full text Add to dashboard Cite

show abstract

“…However, they are significantly different. The first one (that we will denominate 'A' and is reported in previous literature [1], [2]), tries to completely cancel the current through the linear regulator in the steady state in order to achieve a reduction of power losses. Thus, the efficiency of the whole system increases and almost equals the one of the switching converter.…”

Section: Introductionmentioning

confidence: 99%

Comparative Aspects in Control Strategies for Hybrid DC/DC Converters

García¹,

Vilella²

2016

REPQJ

View full text Add to dashboard Cite

Abstract. Linear-switching hybrid DC/DC converters consist of a voltage linear regulator (classic NPN or nMOS topologies and LDO) connected in parallel with a switching DC/DC converter. In order to control these hybrid structures, different strategies exist, allowing to fix the switching frequency as a function of some parameters of the linear regulator. This article compares two control strategies that, although they can be applied to the same circuital structure of linear-assisted converter, they are slightly different. The first one, reported in previous literature, cancels completely the average current through the linear regulator in steady state to achieve a reduction of power losses. Thus, the efficiency of the whole system increases and almost equals the one of the standalone switching converter. The proposed approach, in spite of a slightly increment of linear regulator's losses, reduces the output ripple that is caused by the crossover distortion of linear regulator output stage.

show abstract

“…These hybrid structures are of strong interest when power supplies are required to drive large output currents and, at the same time, they present fast response to load variations as in modern microprocessors systems [3] or in envelope powersupply modulators for wideband adaptive supply of RF power amplifiers (RFPA) [4].…”

Section: Introductionmentioning

confidence: 99%

VLSI hybrid DC-DC regulator

Cosp-Vilella

García

2015

2015 European Conference on Circuit Theory and Design (ECCTD)

View full text Add to dashboard Cite

Abstract-Hybrid DC-DC regulators are structures that combine both a linear voltage regulator and a switching DC-DC converter. The main objective of this hybrid topology is to converge, in a single circuit topology, the best of both alternatives: a small voltage output ripple, which is a common characteristic of linear regulator circuits, and good energy efficiency, as in switching alternatives. While the linear regulator fixes the required output voltage to a fixed value with negligible steady-state ripple without the necessity of an output capacitor, the switching converter is devoted to drive most of the load current. In addition, the linear one supplies the required current when the load changes at transient intervals. Current paper deals with the design of an on-chip hybrid converter for low output currents. The design has been designed and tested with simulations using a standard 180 nm CMOS technology. The simulation results presented in the paper shows suitable performance of the design.

show abstract

Theoretical Study and Implementation of a Fast Transient Response Hybrid Power Supply

Cited by 39 publications

References 7 publications

Capacitorless DC-DC Regulator as a Candidate Topology for Photovoltaic Solar Facilities

Capacitorless DC-DC Regulator as a Candidate Topology for Photovoltaic Solar Facilities

Comparative Aspects in Control Strategies for Hybrid DC/DC Converters

VLSI hybrid DC-DC regulator

Contact Info

Product

Resources

About