An Externally Trimmed Integrated DC Current Regulator Insensitive to Conducted EMI

Redouté, Jean-Michel; Walravens, Cedric; Winckel, S. Van; Steyaert, Michiel

doi:10.1109/temc.2007.911924

Cited by 4 publications

(1 citation statement)

References 7 publications

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“…The susceptibility of current mirrors has been investigated, and some solutions to increase their EMI-robustness have been proposed in the literature [23][24][25][26][27][28][29][30]. The typical approach is based on capacitors properly placed to implement a filter and attenuate the EMI [23][24][25][26][27][28]. Anyhow, all these solutions refer to transistors nominally operating in the saturation region (above threshold).…”

Section: Rfi Effect On Current Mirrorsmentioning

confidence: 99%

Design of an Ultra-Low Voltage Bias Current Generator Highly Immune to Electromagnetic Interference

Aiello

2021

JLPEA

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The paper deals with the immunity to Electromagnetic Interference (EMI) of the current source for Ultra-Low-Voltage Integrated Circuits (ICs). Based on the properties of IC building blocks, such as the current-splitter and current correlator, a novel current generator is conceived. The proposed solution is suitable to provide currents to ICs operating in the sub-threshold region even in the presence of an electromagnetic polluted environment. The immunity to EMI of the proposed solution is compared with that of a conventional current mirror and evaluated by analytic means and with reference to the 180 nm CMOS technology process. The analysis highlights how the proposed solution generates currents down to nano-ampere intrinsically robust to the Radio Frequency (RF) interference affecting the input of the current generator, differently to what happens to the output current of a conventional mirror under the same conditions.

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Section: Rfi Effect On Current Mirrorsmentioning

confidence: 99%

Design of an Ultra-Low Voltage Bias Current Generator Highly Immune to Electromagnetic Interference

Aiello

2021

JLPEA

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EMC immunity of integrated smart power transistors in a non-50Ω environment

Nzalli

Wilkening

Jansen

2013

2013 9th International Workshop on Electromagnetic Compatibility of Integrated Circuits (EMC Compo)

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Electromagnetic Susceptibility Analysis on a Digital Pulse Width Modulator for SMPSs

Orietti

Saggini

Mattavelli

et al. 2009

IEEE Trans. Electromagn. Compat.

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In this paper, a digital pulse width modulator (DPWM) is analyzed from the point of view of susceptibility to radio-frequency interference (RFI). The chosen DPWM architecture is based on the hybrid delay-line/counter scheme commonly used in the digital control of switched-mode power supplies (SMPSs). This paper focuses on the DPWM performance degradation in the presence of electromagnetic interference (EMI), and for this purpose a DPWM with time resolution down to 350 ps has been designed and manufactured in a standard 0.35-μm complementary metaloxide semiconductor technology. Measurements and analytical analyses are presented for both EMI effects on the internal generated clock signal and on the PWM duty-cycle precision. The immunity degradation mechanisms are investigated by means of an analytical approach, demonstrating that the PWM susceptibility is more strictly related to its functional design rather than to the implemented topology. The effects of clock and duty-cycle jitter induced by RFIs are finally verified using a simulation model on a digitally controlled buck converter, highlighting the importance of such issue on steady-state performances of SMPSs

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An Externally Trimmed Integrated DC Current Regulator Insensitive to Conducted EMI

Cited by 4 publications

References 7 publications

Design of an Ultra-Low Voltage Bias Current Generator Highly Immune to Electromagnetic Interference

Design of an Ultra-Low Voltage Bias Current Generator Highly Immune to Electromagnetic Interference

EMC immunity of integrated smart power transistors in a non-50Ω environment

Electromagnetic Susceptibility Analysis on a Digital Pulse Width Modulator for SMPSs

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An Externally Trimmed Integrated DC Current Regulator Insensitive to Conducted EMI

Cited by 4 publications

References 7 publications

Design of an Ultra-Low Voltage Bias Current Generator Highly Immune to Electromagnetic Interference

Design of an Ultra-Low Voltage Bias Current Generator Highly Immune to Electromagnetic Interference

EMC immunity of integrated smart power transistors in a non-50&#x2126; environment

Electromagnetic Susceptibility Analysis on a Digital Pulse Width Modulator for SMPSs

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Product

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EMC immunity of integrated smart power transistors in a non-50Ω environment