A new model of bipolar power supplies for LNLS steering magnets using full-bridge topology

Rodrigues, C. L.; Silva, Angelo Romeu

doi:10.1109/cobep.2011.6085310

Cited by 2 publications

(2 citation statements)

References 2 publications

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“…Usually, the current sources used at LNLS present a precision better than 0.01% in relation to their output range [8,9,10] (in this case precision can be understood as a general expression which encompasses resolution, short and long time stability, linearity, etc. This represents an additional difficult for the design of current digital regulators, because their performance is affected by quantization and mathematical noise, accuracy of analog-todigital converters (ADC) and the resolution of the pulse width modulator (PWM) [11,12].…”

Section: Introductionmentioning

confidence: 99%

Digital control system for high precision power supplies of the new Brazilian synchrotron source

Brunheira

Bonaldo

Rosa

et al. 2013

2013 Brazilian Power Electronics Conference

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This paper proposes an architecture of digital current regulator intended to be used to control the power supplies of the new Brazilian synchrotron light source, called Sirius. It is based on a high-precision Digital to Analog Converter and a modern System on Chip device, which has the capability of performing realtime control tasks together with managing and interface tasks. Despite this system will be used to control many kinds of power supplies, it was validated in a 100 W power supply, which was previously developed to be used in the present Synchrotron Light Source.

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Section: Introductionmentioning

confidence: 99%

Digital control system for high precision power supplies of the new Brazilian synchrotron source

Brunheira

Bonaldo

Rosa

et al. 2013

2013 Brazilian Power Electronics Conference

Self Cite

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“…A high-bandwidth corrector is a bipolar power supply. Many types of DC/DC converter topology have been studied, including flyback, boost, buck, forward, half-bridge, and full-bridge converters [1][2][3]. Buck and flyback converters are DC-to-DC power converters that step down voltage.…”

Section: Introductionmentioning

confidence: 99%

Design a H-bridge low ripple and high bandwidth air core magnet corrector power supply in NSRRC

Wong¹,

Huang²,

Liu³

et al. 2021

J. Inst.

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This paper is the study of a low-current-ripple and high-bandwidth corrector power supply. The main circuit of this power supply is using a full bridge (H-bridge) structure, and the output current through the high-precision direct current current transducers (DCCT) to transfer the reference voltage to the controller. Previous TPS corrector power supply had a 4.7 kHz current bandwidth, and its output current ripple was 100 μA. Such current ripple and bandwidth do not satisfy the requirements of a rapidly orbiting feedback system of air core loading. Therefore, our research team designed a novel prototype power supply with a high bandwidth (more than 10 kHz) and low output current ripple (less than 10 μA) which was developed via a novel topology circuit. The operation frequency of the main power switch's n-type metal-oxide-semiconductor logic of this novel circuit is increased to 245 kHz. Moreover, the output results of the filter inductor and filter capacitor are modified to 80 μH and 2.46 μF, respectively. The prototype power supply bandwidth reached 10.546 kHz and increase of 124% and its output current ripple was lowered below than 5 μA. The properties of this corrector power supply are very important for the beam correction in storage rings. Finally, A circuit with an input voltage of 48 V, a maximum output current of 10 A, and an output power of 400 W is tested in a laboratory to verify the performance of the developed corrector for the National Synchrotron Radiation Research Center.

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A new model of bipolar power supplies for LNLS steering magnets using full-bridge topology

Cited by 2 publications

References 2 publications

Digital control system for high precision power supplies of the new Brazilian synchrotron source

Digital control system for high precision power supplies of the new Brazilian synchrotron source

Design a H-bridge low ripple and high bandwidth air core magnet corrector power supply in NSRRC

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