Development of a physically-based planar inductors VHDL-AMS model for integrated power converter design

Ammouri, Aymen; Salah, Walid Ben; Khachroumi, Sofiane; Salah, Tarek Ben; Kourda, Ferid; Morel, Hervé

doi:10.1051/epjap/2014130430

Cited by 5 publications

(7 citation statements)

References 12 publications

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“…During this step, different planar inductor designs are integrated in a simple power converter. The spiral inductor role is the circuit inductance load, L , which defines the switching turn‐off parameters dv/dt and di/dt of the transistor . The experimental platform integrates also the following elements: The device under test, and the square, hexagonal, and octagonal planar inductors are printed directly on the PCB with different design parameters (see Table ).…”

Section: Validation Processmentioning

confidence: 99%

“…The PCB substrate is made up of FR4 material with the dielectric constant, ε r , and the thicknesses are 4.4 and 1.6 mm. A noninductive film resistor used as a resistor R load. The silicon carbide junction field effect transistor device from SiCED as a high‐speed switch. A driver to control the turn‐on and the turn‐off switching of the junction field effect transistor. A DC voltage source. A polypropylene capacitance used to stabilize the DC voltage source. More other details for the experimental platform are given in previous works …”

Section: Validation Processmentioning

confidence: 99%

“…The spiral inductor role is the circuit inductance load, L, which defines the switching turn-off parameters dv/dt and di/dt of the transistor. 3,18 The experimental platform integrates also the following elements:…”

Section: Frequency Domain Validationmentioning

confidence: 99%

“…These components may be optimized using planar printed circuit board (PCB) devices. Compared with the conventional magnetic components, planar technology is printed directly on circuit board (PCB) with low profile and offers the flexibility of winding geometry and large shape …”

Section: Introductionmentioning

confidence: 99%

“…Compared with the conventional magnetic components, planar technology is printed directly on circuit board (PCB) with low profile and offers the flexibility of winding geometry and large shape. [1][2][3] From a design point of view, planar inductor electrical behavior cannot be precisely predicted by the conventional inductor models. [4][5][6] In particular, the skin, the proximity, and the parasitic capacitances effects are complex devices to model, particularly during large frequency domain.…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

A spiral planar inductor: An experimentally verified physically based model for frequency and time domains

Ammouri¹,

Salah²,

Morel

2017

Int J Numerical Modelling

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The results of a comprehensive investigation of spiral inductors are presented. A physically based model includes the self and mutual inductances, the capacitances between adjacent turns, the substrate capacitance, and the ohmic loss effects proposed. Heterogeneous simulation scheme, including circuit and device models during time and frequency domains, is successfully implemented in VHDL-AMS language and is simulated numerically in Simplorer platform.The model has been validated during frequency domain with measurement data of spirals having different geometries and various sizes. Moreover, the fabricated spiral inductors are evaluated in DC-DC power converter to benchmark the model accuracy. Simulation and experimental results show excellent agreement.Validity domain is discussed. | INTRODUCTIONIn the work of Ouyang and Andersen, 1 they specified various problems related to the integration of power electronic systems. The authors demonstrated that the large mass/volume of a given power system is occupied by magnetic components. These components may be optimized using planar printed circuit board (PCB) devices. Compared with the conventional magnetic components, planar technology is printed directly on circuit board (PCB) with low profile and offers the flexibility of winding geometry and large shape. [1][2][3] From a design point of view, planar inductor electrical behavior cannot be precisely predicted by the conventional inductor models. [4][5][6] In particular, the skin, the proximity, and the parasitic capacitances effects are complex devices to model, particularly during large frequency domain. In the work of Han et al, 5 the electromagnetic simulation is considered to be modeling planar components. However, this method is not only cumbersome and time-consuming but also difficult to develop into general electronically circuit simulations. Other original models are reported by Wang et al. 6 However, this model is not dependent on the geometrical parameters and the layout process. Moreover, its model parameters are not used fairly to optimize the planar inductor layout. In a previous work, 3 a simple square planar inductor model is developed and simulated inside a power converter during time domain. 7 However, the validation process appeared quite limited at frequency domain and for different planar inductor structures such as hexagonal and octagonal structures (Figure 1). So far, literature has addressed models of planar inductor but was not able to simulate different inductor designs. It is thus necessary to assess the planar inductor electrical performances and its validation not only during time domain but also during frequency domain for different inductor structures.

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Section: Validation Processmentioning

confidence: 99%