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In this paper, a modeling method for predicting the conducted emission with a current probe method is presented for a motor-drive braking system. The proposed model considers the motor driving circuit components and the measurement environment. The models of motor driving circuit component include PWM inverter circuits, 3-phase motor, PCB, heatsink, bus bars, and motor casing. The models of measurement...
This paper describes a new methodology of construction of the internal activity block of an ICEM-CE model of an FPGA based on a predictive approach using the estimation tools of the dynamic power and the static timing proposed by the manufacturer of the integrated circuit.
In this paper, we investigate the conducted emission of I/O pins near power pairs of a microcontroller integrated circuit. Our investigation show that with the increase of the distance from the power pairs the I/O pin gives decreasing conducted emission. The spread of the conducted emission from power pairs to I/O pins can be depicted by mutual inductance and mutual capacitor in a lumped circuit model.
Conducted emission tests are always performed by the use of LISNs in laboratories in accordance with CISPR22, CISPR11 and other similar standards. However, it is not always possible to use LISNs because of some limitations. If the Equipment Under Test (EUT) has large dimensions or high currents, it is not, for most of the time, possible to send it to an EMC laboratory or to use LISNs during the test...
Electronic equipments can include several electronic boards (passive and active circuits) in a confined space. However, conducted disturbances can propagate from one electronic board to another throw the interconnections and / or common ground. This can lead to the whole system dysfunction. This paper presents a modeling approach based on the bottom-up technique to predict the conducted emissions...
Conducted emission tests are always performed by the use of LISNs in laboratories in accordance with CISPR22, CISPR11 and other similar standards. However, it is not always possible to use LISNs because of some limitations. If the EUT (Equipment Under Test) has large dimensions or high currents, it is not, most of the time, possible to send it to an EMC laboratory or to use LISNs during the test....
A filter design technique using numerical simulation is described and an example is given of the application of our technique for inverters compliant with European standards. We first studied noise generation mechanisms of inverters with a combined method of magnetic field and an electric circuit. We then design X-capacitor filters for category C2 of the European standard using transmission property...
Lighting systems are omnipresent and their electrical and electronic components become increasingly complex - thus their interference potential also increases and needs to be carefully assessed. This paper looks at a luminaire from a network point of view, describing the wiring and geometry of the gear tray as an N-port network, and critical components as excitation and load for that network. The...
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