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This study presents an accurate and fast method for large-signal discrete-time simulation of current controlled DC/DC buck converter in continuous conduction mode. It employs modal decomposition of the state transition matrix for each topology, resulting in an exact and computationally efficient set of decoupled discrete-time state equations. This enables one to obtain an accurate solution for duty...
This paper presents the extensions and experimental validations of a new approach recently developed by the authors for accurate estimation of on-resistance (RDS(on)) of large lateral power MOSFET switch layouts present in on-chip DC-DC converters. This approach exploits the highly symmetric and repetitive patterns of power MOSFET layouts to generate the extracted resistance netlist efficiently resulting...
This paper presents an improved algorithm to extract frequency response from schematics of switching converter circuits using time domain simulations. The analytically derived ac models involve averaging and different approximations and thus do not properly reflect the frequency response of the system. The proposed approach enables the generation of accurate frequency response characteristics of any...
The paper comes up with the variation of slope compensation with step load and duty cycle for one cycle control in a peak current controlled dc-dc buck converter. For an optimal performance under varying load conditions and input voltage the amount of slope compensation desired, vary dynamically. A conventionally used linear slope is definitely not a solution. To meet the dynamic requirement of slope...
This paper presents an accurate and fast technique for the estimation of on-resistance (RDS(on)) of large lateral power MOSFET switch layouts in on-chip DC-DC converter and determination of the current distribution pattern in the switch layouts. In the proposed approach an extracted netlist is created which consists of the lumped parasitic resistances formed in the metal interconnects and the MOS...
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