Multiphase Interleaving Buck Converter with Input-Output Bypass Capacitor

Taufik, Taufik; Prasetyo, Randyco; Hernadi, Arief; Garinto, Dodi

doi:10.1109/itng.2010.97

Cited by 5 publications

(3 citation statements)

References 6 publications

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“…Another potential benefit of multi-phasing includes improved efficiency due to the lower turn-on and turn-off losses of the switches from a lower peak current when the input current is split evenly through the multiple phases [8]. From board layout aspect, the multiphase technique offers better heat distribution on the board due to the alternating current path in the circuit [9].…”

Section: Multiple-phase Techniquementioning

confidence: 99%

Multiple Charge Pump for High Output Voltage

Taufik¹,

Taufik²,

Abubakar³

et al. 2015

Software Engineering and Applications/ 831: Advances in Power and Energy Systems

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This paper proposes a multi-phase charge pump for high voltage output applications. The simple topology combines a voltage doubler with an inverting charge pump that are paralleled to provide an output voltage that is three times the input voltage. The operation of the proposed topology and the effects of multi-phasing and varying duty cycle on the input current ripple, output voltage and current ripple as well as total harmonic distortion are analyzed using LTSpice simulation. Benefits and issues from the proposed configuration will also be discussed.

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Section: Multiple-phase Techniquementioning

confidence: 99%

Multiple Charge Pump for High Output Voltage

Taufik¹,

Taufik²,

Abubakar³

et al. 2015

Software Engineering and Applications/ 831: Advances in Power and Energy Systems

Self Cite

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“…As the number of transistors in microprocessors increases per Moore's Law their power requirement increases accordingly. The output current requirements for microprocessors are rising while output voltage requirements are falling [12]. Next-generation high performance microprocessors may require 40 to 80 watts of power for the CPU alone [13] while the supply voltage decreases as microprocessors move to smaller process sizes [14].…”

Section: Chapter 1 : Introductionmentioning

confidence: 99%

“…Buck converters are ideally suited for microprocessor power applications by taking its high input voltage and low current and converting that power to a low output voltage and high current. Particularly, a multiphase interleaving buck converter shows promise in addressing this issue [12].…”

Section: Chapter 1 : Introductionmentioning

confidence: 99%

Modeling and Analysis of the Effects of PCB Parasitics on Integrated DC-DC Converters

Fernandez¹

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Load transients are prevalent in every electronic device including semiconductor memory, card readers, microprocessors, disc drives, piezoelectric devices, and digitally based systems. They are capable of producing voltage stress, introducing noise, and degrading device functionality. In order to avoid damage to the device, a feedback control loop is implemented with system compensation to regulate the output voltage deviations by the converter. Because designing compensation networks can be rather complicated, DC-DC converters with integrated feedback control topologies help minimize design time and complexity of converter compensation at the expense of design flexibility. This thesis widens the limitations of an integrated DC-DC converter with a stability optimization technique that utilizes the feedback network to create a phase boost centered at the bandwidth of the converter to increase the phase margin and improve its transient response. Ideal modeling verifies stability optimization while non-ideal modeling that introduces PCB parasitics to the control loop suggest an additional phase boost in the feedback network. Experimental data confirms this non-deal model for parasitic capacitances higher than calculated. The modified non-ideal model shows more accuracy compared to the experimental data which indicates that there may be PCB parasitics that is unaccounted for. Modeling the modified non-ideal model to high orders may yield more accuracy. This thesis gives both DC-DC converter and PCB layout designers insight and considerations into PCB effects on the stability of DC-DC converters and the optimization of integrated compensation.

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