Energy efficiency is becoming one of the most important topics in electronics. Among others, wide band-gap semiconductors can raise and lead to shrinking volumes power conversion systems. As different markets have regulations that require designs, it necessary cope with a large variety similar designs. By using effective modeling simulation strategies, efforts building these variants be diminished, re-designs avoided. In this paper, we present universally valid way come reasonable results...

Abstract Electronic based systems (EBS) tend to become smaller in size while at the same time their functionality, complexity, and operating frequencies increase. Therefore, accurate broadband characterization of electric behavior components such EBS is becoming more important for first‐time right designs, especially electromagnetic compatibility (EMC) interference (EMI) issues. Although many manufacturers provide up to, example, 8.5 GHz, there still a lack information about parasitic...

As the electromagnetic compatibility (EMC) of IC products takes on greater significance for competitiveness, manufacturers are increasingly interested in evaluating EMC performance their as soon during very first design phase without need prototypes. There a number approaches to predict radiated emissions automotive components defined CISPR25 standard. However, it can be concluded that none them suitable continuous use by circuit designer itself because they either manufactured prototype and...

Radiated emissions generated by an integrated circuit (IC) during operation must not exceed specific limits. For automotive ICs this is verified the standardized ALSE (Absorber Lined Shielded Enclosure) measurement setup defined in CISPR 25 standard. This test especially targets E-field emitted a long cable harness attached to device under test. Apart from simulations, analytical calculation models can be applied quickly estimate compliance results. Typically Hertzian dipole antenna model...

Integrated circuits for automotive applications must not violate certain limits maximum electromagnetic emissions. One of many standardized compliance tests is the CISPR 25 ALSE test, where radiated emission from a straight cable harness attached to device evaluated. For devices with multiple outputs this may contain cables. It critical understand, that non-operated cables have shielding effect, which function their termination impedance. The originating consisting will, in some cases, be...

Electromagnetic compatibility of electronic based systems is increasingly gaining importance. The aim to develop simulation tools on the finite element method, which allow inclusion electromagnetic aspects systems. different dimensions involved objects are a big challenge, for example ratios higher than 1/100,000 common. goal find reasonable models improve performance. This paper focuses reducing metallic shielding boundary condition in model. It either considered as perfectly electric...

Abstract The modeling of batteries for simulation is nowadays increasing importance because their behavior and performance has significant influence on the operation many modern systems, such as electric vehicles (EV), mobile devices, energy storage more. But also play an important role in daily electromagnetic compatibility (EMC) testing measurement tasks, namely if they are used powering devices under test (DUT) or equipment. In this paper, we demonstrate impact a commercial 9V block...

Batteries are a fundamental part of many modern electric systems. As result, battery modeling is increasingly important for the prediction signal and power integrity (SIPI) as well electromagnetic compatibility (EMC). Conventional module requires knowledge integrated cells first, which usually obtained by measurement on single cells. However, if individual not accessible, cell's impedance needs to be extracted from complete module. This work describes two solutions this problem, both...

The paper presents an isolated bi-directional half bridge CLLLC converter for electric bike charging application. Phase shift control strategy has been proposed to charge and discharge the battery as well achieve required voltage gain. A simplified closed loop implemented performance of controller verified in simulations. experimental realization done tested both (charging discharging) power transfer directions. highest efficiency 96.2% achieved at 24V 2A current.

This paper presents the energy management algorithm implemented in an e-bike battery sharing station to control parallel charging of many tens batteries. The targets energy-self-sufficient operation from solar only. To achieve that, model-based forecasts user demands, production as well demand for thermal conditioning are employed. latter is generated electro-thermal simulation considering self-heating cells function current. Alternatively, exploiting bi-directional capabilities used DC/DC...

Floating, i.e. not locally grounded, printed circuit boards (PCBs) at the end of a long harness and above large ground plane are common in automotive applications. A problem modeling such setups is missing reference PCB side. In this work, two equivalent models extracted from design data, one based on broadband SPICE (BBSPICE) netlist generated S-parameter simulation other obtained by partial element (PEEC) method. They compared against measurements results demonstrator described setup....

For evaluating the electromagnetic emission (EME) of an integrated circuit (IC) during design phase, a precise transient simulation disturbing signal is required. This usually takes lot time, so that simulating trace longer than couple ms not feasible. In this paper extension to existing interference (EMI) receiver model introduced, which enables interpolate spectrum very long data with repetitive contents (like digital transmissions) while using only short parts overall as input. Therewith...

Models for the simulation of battery pack impedance are usually composed models individual cells which is made of, linked with a description cell-to-cell and cell-to-housing coupling. Thus, conventional modeling requires knowledge cell first, obtained by measurement on single cells. In this work, solution to inverse problem described, i.e. available within shall be derived. Therefore, pack's needs partitioned into cells' 'internal' impedances exterior coupling effects, like mutual...

Knowledge of battery cell impedance is crucial for the design many modern applications, as well predicting their electromagnetic compliance. For detailed 3D simulation packs, single cells are commonly replaced with simplified bodies enhanced by internal data obtained from measurement on real cells. Thereby it necessary to exclude all influence setup, i.e. de-embed exterior properties. In this work, two approaches presented extract an 18650 Lithium-ion (Li-ion) within a holder printed circuit...

Especially in automotive and aerospace applications very long complex cable harnesses are part of virtually all electronic systems. To precisely predict their electromagnetic behavior by simulation, accurate models cables essential. In this work a semi-automatic workflow to derive lumped circuit transmission line (LCTL) model from the 2D cross section an arbitrary harness is presented. contrast conventional measurement based behavioral (e.g. S-parameters) approach provides flexibility depict...

In this paper, common practice RF design guidelines for SMA edge mount connectors are investigated in terms of numerical simulations and VNA measurements. These used a variety applications coaxial-to-planar interfaces but often do not provide information regarding the physical origins increased insertion transmission losses. The presented results work focus on different PCB features their impact electromagnetic field distributions launching zone. investigations should raise awareness issue...

Batteries are fundamental components of many modern systems, most prominently electric vehicles (EV) or mobile devices. Hence, generation battery models is becoming a crucial task to evaluate the performance suchlike electronic systems in simulation, including electromagnetic compatibility (EMC). But even commercial cells like 9V block may critically impact daily EMC measurement tasks, namely if they used for powering tested devices peripheral equipment. To depict battery's influence by...

Filters and pulse shapers are widely used to reduce Electromagnetic Interference (EMI) by shaping the signal waveform. As order of filter increases so does silicon area requirement, which becomes an issue specially for low frequency applications. This paper outlines a methodology implement square wave shaper approximates low-pass (LPF) characteristics using squaring circuits, with aim reducing component count significant gain in area. The is analyzed comparison ideal Bessel LPF resulting...