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.
In this paper, a simple control method is presented to stabilize the nonlinear dynamic behavior of LLC resonance full-bridge DC-DC converter under voltage mode control based on the conventional delay time feedback, resonant parametric perturbation and self-stable control methods. First, the mathematical model of LLC resonance full-bridge DC-DC converter under voltage mode control are built. Second,...
This paper analyzes the error of digital control PFC system in the presence of digital signal processing, the control loop of PI, PID controller is equivalent to IIR digital filter, the mathematical statistics of errors by the control loop is calculated and the transfer model of noise in the system is gave. these works for the digital control PFC system to choose the right processor and reduce the...
Based on the existing voltage balancing scheme for two series HV-IGBTs (High voltage insulated gate bipolar transistors) with active clamping and status feedback, this paper focuses on the characteristics of IGBT with active clamping circuit. First, the previous series IGBT model is improved according to the experiment results in order to give accurate feedback signal in the active clamping sub-circuit...
Silicon carbide (SiC) semiconductor devices have received extensive attention with the better performance of the wide band gap material. It is necessary to compare with their silicon (Si) counterparts due to SiC semiconductor devices are new. In this paper, a test platform based on buck converter is constructed to test the switching characteristics of SiC MOSFET, Si CoolMOS and IGBT, the input voltage...
When the inductor current of boundary conduction mode (BCM) Buck converter, falls to zero, the output filter inductor will resonate with the capacitor across the switch called Quasi Resonant (QR). If the switch is turned on when the voltage of resonant capacitor is zero, ZVS and ZCS turn-on can be achieved, the switching loss is eliminated. This thesis analyses the resonant between the output inductor...
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.