Multiphase Current Controlled Buck Converter with energy recycling Output Impedance Correction Circuit (OICC)

Šviković, Vladimir; Alou, P.; Oliver, J. A.; García, O.; Cobos, J.A.

doi:10.1109/apec.2013.6520219

Cited by 7 publications

(6 citation statements)

References 16 publications

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“…The gains of op-amps 2 and 3 are denoted as kp1 and kn1 and expressed in (16) and (17), respectively.…”

Section: B Sensing Il and Generating Envelopesmentioning

confidence: 99%

“…A buck/boost converter was proposed [16] to achieve a fast response by employing the output impedance correction circuit. This concept was later extended to the multiphase buck converter with the peak current mode (PCM) control [17]- [18]. Works shown in [19]- [21] control the average current of the auxiliary inductor to secure CCB during the load transient.…”

Section: Introductionmentioning

confidence: 99%

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Implementation of Soft-Switching Auxiliary Current Control for Faster Load Transient Response

et al. 2021

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“…The gains of op-amps 2 and 3 are denoted as kp1 and kn1 and expressed in (16) and (17), respectively.…”

Section: B Sensing Il and Generating Envelopesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Implementation of Soft-Switching Auxiliary Current Control for Faster Load Transient Response

et al. 2021

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“…Output ripple is a crucial specification for modern multiphase voltage regulator modules (VRMs), which require high‐frequency and small output filters [1]. Since a multiphase regulator will have the smallest output voltage ripple if phases are equally interleaved, the conventional method to minimise the ripple is synchronising the switching activities with interleaved clocks in continuous conduction mode (CCM) [2–4].…”

Section: Introductionmentioning

confidence: 99%

Multiphase voltage regulator with small output ripple in both CCM and DCM

Zhang

Zhao

et al. 2019

Electron. lett.

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A novel multiphase voltage regulator with small output ripple in both continuous conduction mode (CCM) and discontinuous conduction mode (DCM) is proposed. Mathematical analysis proves that the multiphase regulator has the smallest output ripple if phases are equally interleaved. The proposed regulator could minimise the output ripple through precisely interleaved phases by using a PLL-based synchronous clock in CCM and a self-adjusted staggered-time generator in DCM. The design is validated by fabrication in 0.18 µm CMOS process. Test results show that the peak-peak values of output ripple are 6 and 9 mV with 4 and 0.3 A loads, respectively.

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“…Nowadays, there is a demand for a multiphase DC–DC converter that is able to produce high‐slew rate operation with a smaller output ripple

()(, normalΔ V_{normalo})

and a reduced output filter size [4, 5]. The converter would usually process the flow of electric energy as required by the load.…”

Section: Introductionmentioning

confidence: 99%

Improvement of speed response in four‐phase DC–DC converter switching using two shunt voltage‐source

Yahaya

Mansor

Sulaiman

2018

IET Power Electronics

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This study proposes a technique that is able to improve the speed response of a four-phase DC-DC converter switching. The basic concept of the proposed technique is the inclusion of two shunt-connected voltage sources in series to the converter system. Using a higher input voltage to drive the load, a higher current per microsecond output system will be obtained and reverts to its nominal input upon obtaining desired references. Thus, the transient response observed when using this proposed technique is found to be much faster when compared to the conventional converter. Moreover, this technique is easily implemented as it requires only an additional voltage source, power switch, and power diode. The integrated model of the two shunt voltage-source in a four-phase DC-DC converter was simulated in MATLAB/Simulink and validated against the experimental results of a laboratory prototype, 600 W four-phase DC-DC converter. The novelty of this proposed technique is its ability to provide faster operations for critical loads applications, lower output capacitor and lower operating frequency.

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Multiphase Current Controlled Buck Converter with energy recycling Output Impedance Correction Circuit (OICC)

Cited by 7 publications

References 16 publications

Implementation of Soft-Switching Auxiliary Current Control for Faster Load Transient Response

Implementation of Soft-Switching Auxiliary Current Control for Faster Load Transient Response

Multiphase voltage regulator with small output ripple in both CCM and DCM

Improvement of speed response in four‐phase DC–DC converter switching using two shunt voltage‐source

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