EMI examination of symmetric forward converter

Yazdani, Mohammad Rouhollah; Filabadi, Nahid Amini; Faiz, Jawad

doi:10.1109/pedstc.2013.6506735

Cited by 5 publications

(5 citation statements)

References 11 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In Fig. 7 the results can be seen after implementing similar parasitics as were described in [14]. In case of CM EMI, the trend in reducing EMI with increased number of legs is not as prominent.…”

Section: CM Noise Reduction Techniquesmentioning

confidence: 83%

“…VI the basic circuit diagram can be seen. The windings are split over two separate inductors, distributing the total parasitic effect evenly, however with a phase-shift of 180 degrees, effectively cancelling the common mode current [15], [16]. By utilizing the split transformer the CM noise spectrum could be reduced significantly, as can be seen in Fig.…”

Section: CM Noise Reduction Techniquesmentioning

confidence: 99%

See 1 more Smart Citation

Design of EMI Improved Isolated DC/DC Converter for Space-based Applications

Koch

Dijkstra

Moonen

2022

2022 International Symposium on Electromagnetic Compatibility – EMC Europe

View full text Add to dashboard Cite

For space exploration, for instance by use of Cube-Sats, there is need for small converters which can both operate isolated and non-isolated with a low EMI profile. Incorporating Electromagnetic Compatibility (EMC) within the design stage is therefore crucial, and can be achieved by applying different EMI mitigation techniques from the very start of the design. This paper investigates inherent reduction of EMI via interleaving, balancing, and symmetrically designing a DC/DC converter. Mass and volume restraints are considered as well during the design. It will be shown that these relatively advanced (but matured) design techniques, already well known and utilized on Earth, can be utilized for a novel design for space based applications with beneficial charateristics.

show abstract

Section: CM Noise Reduction Techniquesmentioning

confidence: 83%

Section: CM Noise Reduction Techniquesmentioning

confidence: 99%

Design of EMI Improved Isolated DC/DC Converter for Space-based Applications

Koch

Dijkstra

Moonen

2022

2022 International Symposium on Electromagnetic Compatibility – EMC Europe

View full text Add to dashboard Cite

show abstract

“…The second-stage circuit is a trigger pulse forming circuit, which converts the output voltage of the first-stage circuit into trigger pulses. Flyback SMPS and forward SMPS [12]- [14] are common in the first-stage circuit. Both flyback SMPS and forward SMPS can cause conducted interference due to high current pulsations di/dt and high voltage pulsations dv/dt [15]- [16].…”

Section: Introduction Cpps [1]-mentioning

confidence: 99%

Improvement of high-power thyristor trigger circuit with switching-mode power supply for differential-mode noise reduction

Wei

2023

J. Phys.: Conf. Ser.

View full text Add to dashboard Cite

This paper focuses on the differential-mode (DM) noise of high-power thyristor (HPT) trigger circuit with switching-mode power supply (SMPS) in capacitive pulsed power supply (CPPS). Parasitic parameter models of components are discussed and analyzed. Based on the parasitic parameter models of components, a DM noise prediction model of HPT trigger circuit with SMPS is developed. The generation mechanism and propagation paths of the DM noise in HPT trigger circuit with SMPS are investigated. To reduce the DM noise, a capacitive SMPS technique is adopted in the HPT trigger circuit with SMPS. Simulation results validate the theoretical analysis.

show abstract

“…In this way, the same common mode noise and current are obtained. In reference [21], Symmetrical components are used to reduce the drainto-source voltage turn-on noise.…”

Section: Introductionmentioning

confidence: 99%

Closed-Loop Gate Drive for Single-Ended Forward Converter to Reduce Conducted EMI

et al. 2020

IEEE Access

View full text Add to dashboard Cite

Forward DC / DC converters are widely used in low and medium power circuits that are widely used in the aerospace and navigation fields. Power converters are usually sources of electromagnetic interference (EMI), which is due to their higher voltage and current transients. The traditional method is to add expensive filters on the primary side or the secondary side, but its disadvantages are high cost and poor adjustability. Based on the principle that the greater the number of derivations of voltage transients, the lower the high frequency electromagnetic interference contained in this voltage, a signal containing small high-frequency noise that is suitable for the hardware circuit as a reference signal is selected, and a closedloop gate drive method is used in this paper, which attenuate the conducted EMI noise in the input bus of the forward DC/DC converter. The reference signal shapes the output signal to achieve the purpose of suppressing electromagnetic interference through the closed loop circuit. The advantages of this method are making the output highly adjustable, reducing hardware size and weight and lower cost compared with filter method. Compared with the method of controlling current to reduce electromagnetic interference, the proposed method is easier to implement. Firstly, the relationship between the derivative order of voltage transient and electromagnetic interference is introduced. Secondly, the experimental principle of singleended forward circuit controlled by closed loop is introduced. Simulation and experimental results show that the proposed method can achieve voltage shaping and suppression of voltage overshoot effectively. Compared with the traditional hard-switching control method, the proposed method can make the highfrequency components of the drain-source voltage of the primary-side MOS transistor and the secondaryside output voltage have a greater attenuation.

show abstract

EMI examination of symmetric forward converter

Cited by 5 publications

References 11 publications

Design of EMI Improved Isolated DC/DC Converter for Space-based Applications

Design of EMI Improved Isolated DC/DC Converter for Space-based Applications

Improvement of high-power thyristor trigger circuit with switching-mode power supply for differential-mode noise reduction

Closed-Loop Gate Drive for Single-Ended Forward Converter to Reduce Conducted EMI

Contact Info

Product

Resources

About