Name
Title | ||
|---|---|---|
Pseudo-Ramp Current Balance (PRCB) Technique With Offset Cancellation Control (OCC) in Dual-Phase DC-DC Buck Converter |
Abstract | ||
|---|---|---|
To cope with monolithic controller replicas and the current unbalance situation in multiphase converters, a pseudo-ramp current balance technique is proposed to achieve time-multiplexing current balance in voltage-mode multiphase DC-DC buck converter. With only one modulation controller, silicon area and power consumption caused by the replicas of controller can be reduced significantly. Current balance accuracy can be further enhanced since the mismatches between different controllers caused by process, voltage, and temperature variations are removed. Moreover, the offset cancellation control embedded in the current matching unit is used to eliminate intrinsic offset voltage existing at the operational transconductance amplifier for improved current balance. An explicit model, which contains both voltage and current balance loops with non-ideal effects, is derived for analyzing system stability. Experimental results show that current difference between each phase can be decreased by over 83% under both heavy and light load conditions. |
Year | DOI | Venue |
|---|---|---|
2014 | 10.1109/TVLSI.2013.2283606 | IEEE Transactions on Very Large Scale Integration Systems |
Keywords | Field | DocType |
time-multiplexing (tm) current balance.,skipping modulator,modulation controller,dual-phase dc-dc buck converter,pulse frequency modulator (pfm),time-multiplexing current balance,system stability analysis,voltage-mode multiphase dc-dc buck converter,power consumption,monolithic controller replicas,pulse width modulator (pwm),prcb,operational transconductance amplifier,process-voltage and temperature variations,dc-dc power convertors,explicit model,pseudo-ramp current balance (prcb),time-multiplexing (tm) current balance,offset cancellation control,current matching unit,silicon area,current unbalance situation,intrinsic offset voltage,occ,circuit stability,pseudoramp current balance technique,offset cancellation control (occ) | Control theory,Input offset voltage,Computer science,Ampere balance,Control theory,Voltage,Operational transconductance amplifier,Forward converter,Converters,Electronic engineering,Buck converter | Journal |
Volume | Issue | ISSN |
22 | 10 | 1063-8210 |
Citations | PageRank | References |
0 | 0.34 | 0 |
Authors | ||
6 | ||
Name | Order | Citations | PageRank |
|---|---|---|---|
| Yi-Ping Su | 1 | 55 | 7.88 |
| Wei-Chung Chen | 2 | 21 | 6.26 |
| Yu-Ping Huang | 3 | 2 | 0.98 |
| Yu-Huei Lee | 4 | 104 | 19.53 |
| Ke-Horng Chen | 5 | 379 | 90.04 |
| Hsin-Yu Luo | 6 | 0 | 0.34 |