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 the Full Bridge (FB) Phase Shifted (PS) PWM converter, external snubber capacitors are connected in parallel to IGBTs in order to decrease turn off losses. The ZVT condition is not provided at light loads, thus the parallel capacitors discharge through IGBT at turn on and this causes switching losses and failure risk of the IGBT. Capacitor discharge through IGBT restricts the use of high valued...
In this study, a new Phase Shifted Pulse Width Modulated (PSPWM) full bridge isolated DC-DC converter is proposed. In the proposed converter, the resonant inductor is replaced with Linear Variable Inductor (LVI), and controlled with output current. The new converter has many advantages over recently developed PSPWM DC-DC converters in terms of control simplicity and efficiency. The soft switching...
In this study, vector control of an AC brushless servomotor is performed using the current controlled, voltage source inverter and hysteresis PWM method. Using vector control, three phase variables are transformed on the synchronously rotating d and q axis, and control can be performed as in the DC motor. In order to generate PWM signals, an error value is calculated by comparing the current reference...
In this paper, a novel active snubber cell which is used in a boost type DC-DC converter is proposed. The proposed snubber cell provides zero voltage transition (ZVT) and zero current transition (ZCT) for the main switch of the converter. All of the semiconductor devices turn on and off under soft switching. The converter has a simple structure and minimum number of components. Steady state analysis...
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.