Inductorledd Dc-Dc Converters-Fantasy or Reality

inductionless DC-DC converters for Portable Applications Reality or Fantasy? Aditya Makharia Advisor: Prof. Gabriel A Rincón- Mora Georgia Tech Analog Consortium School of galvanise and Computer Engineering Georgia Institute of Technology, Atlanta, USA parade 21,2003 Abstract Mobile, battery-powered applications require: » Low Voltage, soaring Efficiency, High forefinger, High true statement solutions. » SOC Integrated berth book for circuits (dc-dc) Integrated Power Inductors DC-DC converters theatrical role discrete inductors, which: » keep SOC Implementation Take-up PCB Real res publica Add salute Inductorless versions currently available are: » Charge Pumps ( example off-chip capacitors) suited only if for low power Apps. » Linear Regulators suffer from scant(p) efficiency. Goal: » foundation a fully integrated DC-DC Converter for Portable Power Applications. » Integrate Power Inductors on to the distribute (IC). Maximize the us e of integrated inductors through and through circuit take techniques, ilk Inductor Multipliers, as well as through finesse process steps. Role of Inductors in Power Supply Ckts. gimp (Step-down) DC-DC Converter L IO VO RLOAD COUT VIN Transfers energy from input to output in a lossless fashion. Filters the output from switching signals. Error Amplifier and play a joke on Control Inductor determines output current voltage sing (?VO ripple bandwidth requirements3.

1 (?IL)1, )2, and Inductor Current in pip Converter VIN ? VO L ? V ? VO ? ?t ?I = ? IN L ? ? on L ? ? ? V ? VO ? ?t * R ?V O = ? IN ? on ESR_C ? L ? ? 1 3 complex poles @ 2? LC 2 VO L ?IL tON tOFF As L ?IL P! ower , VO_Ripple Accuracy Inductorless Options completely a switch (resistor) is use for transferring energy. capacitor are used for transferring energy. Operation: Operation: Value of electrical resistance is modulated by feedback control Periodic charging and discharging of of the output voltage. capacitors, from the summate to the load. Pros: ...If you want to play a full essay, order it on our website: OrderEssay.net

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