Input-current-clamping: an inexpensive novel control technique to achieve compliance with harmonic regulations

Redl, R.; Kislovski, A.S.; Erisman, B.P.

doi:10.1109/apec.1996.500435

Cited by 21 publications

(6 citation statements)

References 3 publications

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“…3(a) which occur at 50 and 71.5% of duty-cycle revealing some harmonics cancellation at these duty-cycle values. Results obtained with other idealized input current waveforms are given in [5].…”

Section: A Constant-current Referencementioning

confidence: 99%

Power factor preregulators based on combined buck-flyback topologies

Spiazzi

Buso

2000

IEEE Trans. Power Electron.

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The limitation imposed on the achievable power level by the IEC 1000-3-2 standard in buck-derived power factor preregulators, is overcome by using a combined buck-flyback power stage. Two different step-down converters are proposed in this paper, which incorporate an auxiliary flyback stage. The auxiliary stage uses the same switch of the main converter, plus an additional power switch commutated at the line frequency. As compared to a simple buck rectifier, with this solution the harmonic content of the absorbed line current, at a given power level, can be reduced, thanks to the resulting increased conduction angle of the input rectifier bridge. Experimental results based on a 1 kW prototype are reported to validate the theoretical analysis of the proposed topologies.

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Section: A Constant-current Referencementioning

confidence: 99%

Power factor preregulators based on combined buck-flyback topologies

Spiazzi

Buso

2000

IEEE Trans. Power Electron.

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“…A S IT HAS BEEN demonstrated in [1]- [4], various powerquality standards, such as IEC 1000-3-2 [5], can be met by line-current shapers that are substantially different from sinusoidal ones. A trapezoidal waveshaper is particularly attractive due to its potential to achieve high power factor (PF) with low peak-to-rms ratio (crest factor) and relatively low total harmonic distortion (THD) [1].…”

Section: Introductionmentioning

confidence: 99%

“…A trapezoidal waveshaper is particularly attractive due to its potential to achieve high power factor (PF) with low peak-to-rms ratio (crest factor) and relatively low total harmonic distortion (THD) [1]. In [1]- [4], trapezoidal-waveshape approaches are exploited in implementing various simple lowcost boost input-current shapers (ICS's). These ICS's, also known as clamped-current-boost (CCB) ICS's [2]- [4], do not require dedicated ICS controllers.…”

Section: Introductionmentioning

confidence: 99%

“…In [1]- [4], trapezoidal-waveshape approaches are exploited in implementing various simple lowcost boost input-current shapers (ICS's). These ICS's, also known as clamped-current-boost (CCB) ICS's [2]- [4], do not require dedicated ICS controllers. Instead, any conventional current-mode pulse-width-modulation (PWM) controller chip can be used to control the CCB ICS's.…”

Section: Introductionmentioning

confidence: 99%

“…A simplified analysis of and design guidelines for the CCB ICS operating with maximum duty cycle close to 100% and external ramp are presented in [3]. Finally, in [4], the averagecurrent control scheme for the CCB ICS's is proposed.…”

Section: Introductionmentioning

confidence: 99%

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Design-oriented analysis and performance evaluation of clamped-current-boost input-current shaper for universal-input-voltage range

Huber

Jovanovic

1998

IEEE Trans. Power Electron.

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In cost-sensitive off-line applications, compliance with the existing line-current harmonic standards can be achieved by employing clamped-current-boost (CCB) inputcurrent shapers (ICS's). In this paper, a thorough analysis of the CCB ICS is presented, and a complete design-oriented mathematical model is derived. The design equations are given in closed forms so that they can be easily computed by any standard mathematical software. The model is verified experimentally on a 100-W universal-input-voltage-range ICS.

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Operation of the LCC-type parallel resonant converter as a low harmonic rectifier

Belaguli

Bhat

1999

IEEE Trans. Ind. Electron.

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Input-current-clamping: an inexpensive novel control technique to achieve compliance with harmonic regulations

Cited by 21 publications

References 3 publications

Power factor preregulators based on combined buck-flyback topologies

Power factor preregulators based on combined buck-flyback topologies

Design-oriented analysis and performance evaluation of clamped-current-boost input-current shaper for universal-input-voltage range

Operation of the LCC-type parallel resonant converter as a low harmonic rectifier

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