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Showing 1 to 17 of 17 for “"Synchronous Buck"”.
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Optimization of Power MOSFET for High-Frequency Synchronous Buck Converter
… technology require the use of a high-frequency synchronous buck converter (SBC) in order to achieve low cost, low profile, fast transient response and high power density. However, high frequency also causes more power loss on MOSFETs. Optimization of the MOSFETs plays an important role in the …
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A Two-Mode Synchronous Buck Converter for Low-Power Devices with the Sleep Mode
… in this application, however, conventional buck converter usually have high efficiency at heavy load but poor efficiency at light load. To increase the light load efficiency of buck converter, this research continues Yeago's two phase buck converter with optimum phase selection control and …
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Design, Analysis and Implementation of Multiphase Synchronous Buck DC-DC Converter for Transportable Processor
… and the small signal analysis of multiphase synchronous buck converter with the droop current loop is derived. A hardware prototype was implemented base on 4-phase synchronous buck topology to provide high efficiency and lower cost solution. The results of load line meets the Intel …
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Modeling and Design of a Monolithic High Frequency Synchronous Buck with Fast Transient Response
… a high frequency, wide input range monolithic buck converter ASIC with fast transient response is designed based on advanced trench BCD technology. Stability is the fundamental requirement in designing switching converter ASIC. Achieving this requires an accurate loop gain design, especially …
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A zero-voltage switching technique for high frequency buck converter ICs
… to decrease the frequency dependent losses in a buck converter. The specific application for this thesis was a buck converter IC with an input voltage of up to 42V. The method utilizes the addition of an auxiliary circuit composed of a helper inductor and two helper power MOSFETs that compliment …
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Investigation of High-Input-Voltage Non-Isolated Voltage Regulator Modules Topology Candidates
… investigation of three 12V VRM topologies: the synchronous buck converter, the tapped-inductor buck converter and the active-clamp couple-buck converter. The limitations of today¡¯s synchronous buck approach are identified. The extreme duty cycle of the current topology makes it difficult to …
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A Two-mode Buck Converter toward High Efficiency for the Entire Load Range for Low Power Applications
… (12 mW) to 1200 mA (1440 mW). The conventional buck converter is typically optimized for high efficiency at maximum load at the cost of light-load efficiency. A converter is investigated in this thesis to improve light load efficiency, while being able to handle heavy load, to prolong the …
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MOSFET Current Source Gate Drivers, Switching Loss Modeling and Frequency Dithering Control for MHz Switching Frequency DC-DC Converters
… contribution is a new high efficiency 1MHz synchronous buck voltage regulator using an improved current source driver. The proposed circuit achieves short rise and fall times to reduce switching loss in the buck HS MOSFET. It also recovers a portion of the SR gate energy, enabling a loss …
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MOSFET Current Source Gate Drivers and Topologies for High Efficiency and High Frequency Voltage Regulator Modules
… contribution is a new continuous CSD for a synchronous buck converter. The proposed CSD is able to drive the control and Synchronous Rectifier (SR) MOSFETs independently with different drive currents enabling optimal design. At 12V input, 1.5 V/30A output and 1MHz, the proposed CSD improves …
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Modeling And Optimization Of Body Diode Reverse Recovery Characteristics Of Ldmos Transistors
… has been created and is being implemented into a synchronous buck converter for future DC-DC conversions. This new lateral device has a Figure of Merit of 80mÙ*nC, representing a 50% reduction from the conventional trench MOSFET. The only draw back with this new device is that the body …
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A Constant ON-Time 3-Level Buck Converter for Low Power Applications
… which is light load for power supplies. Typical buck converter applications have low efficiency under the light load condition, primarily from their power stage and control being optimized for heavy load. The battery life of a smart camera can be extended through improvement of the light load …
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Cal Poly SuPER System Photovoltaic Array Universal DC-DC Step Down Converter
… the design process of modifying the standard Buck and synchronous Buck converter topologies to function with either a voltage or current source input, making them universal DC-DC step down converters. This is accomplished by placing a capacitor at the converter's input to supply the pulsating …
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Behavioral Modelling of the Transient and CdV/dt Induced Turn-on of a Hybrid High Power Switch Unit
… power conditions. The induced gate voltage in a synchronous buck converter with two hybrid SiC MOSFET Si IGBT switches was measured and used to verify the validity of the induced voltage model. The design approach for the development of a behavioral transient model and the limitations of the …
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Análisis, diseño y construcción de un proveedor de bus para sistemas de distribución en corriente continua domésticos
… chosen. Chapter 3 deals with the design of the synchronous buck converter which is part of the PdB. First of all, a thorough analysis of the design requirements of the domestic user interface is performed. Taking into account these findings, a design procedure is proposed in order to minimize …
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Fully Distributed Control and Its Analog IC Design For Scalable Multiphase Voltage Regulators
… are monolithically integrated in a dual channel synchronous BUCK controller using TSMC BiCMOS 0.5um process. Testing results show that all the proposed novel analog circuits work as expected. System testing results show good interleaving, current sharing and AVP performance. The silicon size of …
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Design and development of a novel DC/DC bidirectional converter with dual solar/PV-based snow removal and EV charging functionality
… The system is based on a bidirectional buck-boost DC/DC converter that redirects the grid/battery power into heating of the PV modules thus removing snow cover, as well as providing the function of MPPT when required to charge the EV battery. A performance evaluation by simulating and …
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A Two-Phase Buck Converter with Optimum Phase Selection for Low Power Applications
… heavy load. The power stage of traditional buck converter is optimized for maximum load, at the cost of light-load efficiency. Wei proposed a multiphase buck converter incorporating the baby-buck concept and optimum number of phases (ONP) control. This thesis research investigated Wei's …