The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
Power electronic converters are widely used in advanced automobiles, especially in electrical vehicles (EVs). However, the stability analysis of the advanced automotive electrical systems which composed by multi-voltage level hybrid ac and dc systems is much complex than a single converter. In the system level, the downstream converter behaves as a constant power load (CPL) which shows negative incremental...
This paper reveals the common-mode (CM) noise coupling path impedance of the transformer for the whole conducted frequency range (150kHz – 30MHz) based on transmission line theory. Lumped circuit model is commonly used to describe the CM noise coupling mechanism through the transformer, but it's only valid below several mega-hertz due to the influence of distribution parasitic parameters. The transmission...
This paper characterized the CM noise generation and coupling mechanism to predict the CM noise in Flyback converter. The spectrum of noise sources are analyzed using bandwidth-effects-FFT and the CM noise coupling paths are identified to build up a new CM noise analysis method. With this CM noise analysis method, the total CM noise and the contributions of all the coupling paths in the converter...
Electronic ballast requires a high voltage igniter to start up the HID lamps. An improved parallel igniter is proposed in this paper. The basic mechanism of it has been analysed and design principle is developed. Based on this parallel igniter, the lamp series inductor can be optimized separately. This improves the performance of both the igniter and lamp inductor. The simulation and experimental...
Charge equalization is important to reduce the damage and improve the lifetime of the battery. An improved control strategy of the equalization circuit is presented in this paper. The over-equalization technique has been utilized to shorten the equalization time about 25%. The hysteresis control is also been used to improve the robustness of the system. The simulation and prototype experimental results...
In this paper, a radiation model of the circuits on the digital PCB is proposed. Based on this model, it is shown that the radiation due to common mode (CM) currents can greatly exceed those due to differential mode (DM) currents. Furthermore, the main causation of the radiation emissions from CM is derived from this model. Therefore, the EMC performance of the digital PCB can be improved by controlling...
In this paper, the construction process of the macro model for ZVS resonant mode controller MC34067 followed by the analysis for the internal structure and main characteristics is proposed to solve the low efficiency issue in cyber-simulation for high frequency resonant converters in power electronic system integration, improve the speed of the simulation for the resonant mode controller and make...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.