A High Voltage High Power high frequency Boost/Flyback DC-DC converter for automotive applications

Biagi, Edoardo; Pasetti, G.; Tinfena, F.; Serventi, R.; Fanucci, Luca

doi:10.1109/speedam.2012.6264567

Cited by 3 publications

(2 citation statements)

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“…The dithering signal aids in reducing the electromagnetic interference in the system, hence improving the performance of the MPPT algorithm [32]. However, there are some extremum seeking controllers without dither in the extremum seeking loop but instead depend on the past data of the performance map to estimate the gradient of the performance map by means of a 1st-order least squares fit [33].…”

Section: Extremum Seeking Control Mppt Techniquementioning

confidence: 99%

Maximum Power Point Tracking Control of a Thermoelectric Generation System Using the Extremum Seeking Control Method

et al. 2017

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This study proposes and implements maximum power Point Tracking (MPPT) control on thermoelectric generation system using an extremum seeking control (ESC) algorithm. The MPPT is applied to guarantee maximum power extraction from the TEG system. The work has been carried out through modelling of thermoelectric generator/dc-dc converter system using Matlab/Simulink. The effectiveness of ESC technique has been assessed by comparing the results with those of the Perturb and Observe (P&O) MPPT method under the same operating conditions. Results indicate that ESC MPPT method extracts more power than the P&O technique, where the output power of ESC technique is higher than that of P&O by 0.47 W or 6.1% at a hot side temperature of 200 • C. It is also noted that the ESC MPPT based model is almost fourfold faster than the P&O method. This is attributed to smaller MPPT circuit of ESC compared to that of P&O, hence we conclude that the ESC MPPT method outperforms the P&O technique.

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Section: Extremum Seeking Control Mppt Techniquementioning

confidence: 99%

Maximum Power Point Tracking Control of a Thermoelectric Generation System Using the Extremum Seeking Control Method

et al. 2017

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“…automatic switch from step-down to stepup mode in case of battery cranking). With respect to other works in literature [10][11][12][13], where smart DC/DC converter functionalities are verified by simulations, this work implements all the described features in a fabricated silicon prototype that was subject to a full experimental characterization.…”

Section: Introductionmentioning

confidence: 99%

Hard macrocells for DC/DC converter in automotive embedded mechatronic systems

et al. 2016

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A novel configurable DC/DC converter architecture, to be integrated as hard macrocell in automotive embedded systems, is proposed in the paper. It aims at realizing an intelligent voltage regulator. With respect to the state of the art, the challenge is the integration into an automotive-qualified chip of several advanced features like dithering of switching frequency, nested control loops with both current and voltage feedback, asynchronous hysteretic control for low power mode, slope control of the power FET gate driver, and diagnostic block against out-of-range current or voltage or temperature conditions. Moreover, the converter macrocell can be connected to the invehicle digital network, exchanging with the main vehicle control unit status/diagnostic flags and commands. The proposed design can be configured to work both in step-up and step-down modes, to face a very wide operating input voltage range from 2.5 to 60 V and absolute range from −0.3 to 70 V. The main target is regulating all voltages required in the emerging hybrid/electric vehicles where, besides the conventional 12 V DC bus, also a 48 V DC bus is present. The proposed design supports also digital configurability of the output regulated voltage, through a programmable divider, and of the coefficients of the proportional-integrative controller inside the nested control loops. Fabricated in 0.35 μm CMOS technology, experimental measurements prove that the IC can operate in harsh automotive environments since it meets stringent requirements in terms of electrostatic discharge (ESD) protection, operating temperature range, out-of-range current, or voltage conditions.

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