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 new structure based on linear-assisted DC-DC buck converter principle is proposed. Using a segmented LDO regulator instead of the conventional linear one in the hybrid scheme, reduces the difference between input and output voltages and also the switching frequency of the buck converter, while the circuit provides a lower output ripple, better transient response. In addition, the...
An advanced gate drive unit for 1.2 kV IGBT modules has been developed. It includes two main features: limitation of the collector-emitter voltage slope and of the collector-emitter peak voltage. This is achieved through a feedback loop with a capacitive/resistive voltage divider coupled to the gate-emitter voltage of the IGBT. For the studied case a reduction of the switching losses of around 25%...
This paper investigates the switching performance of six-pack SiC MOSFET and Si IGBT modules for motor drive applications. Both the modules have same packaging and voltage rating (1.2 kV). The three bridge legs of the modules are paralleled forming a single half-bridge configuration for achieving higher output power. Turn-on and turn-off switching energy losses are measured using a standard double...
In this paper, a new structure based on linear-assisted DC-DC buck converter principle is proposed. Using a new class-AB LDO regulator instead of the conventional linear one (based on a push-pull output stage) in the hybrid scheme, reduces the difference between input and output voltages and also the switching frequency of the buck converter. Thus, the proposal achieves higher power efficiency rather...
The issues of a single-inductor multiple-output DC-DC converter were studied. Poor cross regulation, low efficiency, low current capability, and large ripple are the major disadvantages of the single-inductor multiple-output converter compared with a conventional DC-DC converter. Several studies to overcome these problems are introduced in this paper.
This paper presents a new control scheme dubbed Bang-Bang Zeroth-Order Control (BBZOC) for Single Inductor Multiple Output (SIMO) buck converter. The main loop control utilizes a phase detector, charge pump, filter, and comparator. The SIMO buck converter with BBZOC simplifies the compensation design compared to conventional voltage mode control. This work is fabricated in 1P4M 0.35um BCD process...
This paper analyzes the influence of package parasitic inductance of fast switching MOSFET in the transient operation. It is found that in the traditional common source MOSFET packages, the inductor in the source connection pin limits the switching speed and reduces the system stability by the gate oscillation. Therefore a package using separated connection for gate control of fast switching MOSFET...
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.