• ISSN 0258-2724
  • CN 51-1277/U
  • EI Compendex
  • Scopus
  • Indexed by Core Journals of China, Chinese S&T Journal Citation Reports
  • Chinese S&T Journal Citation Reports
  • Chinese Science Citation Database
Volume 18 Issue 2
Apr.  2005
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Article Contents
WANG Feng-yan, XU Jian-ping, WU Song-rong, XU Jun-feng. Improvement ofTransientResponse Performances of M icroprocessor Voltage Regulator[J]. Journal of Southwest Jiaotong University, 2005, 18(2): 153-157.
Citation: WANG Feng-yan, XU Jian-ping, WU Song-rong, XU Jun-feng. Improvement ofTransientResponse Performances of M icroprocessor Voltage Regulator[J]. Journal of Southwest Jiaotong University, 2005, 18(2): 153-157.

Improvement ofTransientResponse Performances of M icroprocessor Voltage Regulator

  • Publish Date: 25 Apr 2005
  • The transient responses of voltage regulator (VR) to sudden load changes and the parameters of aVR affecting the transient response of output voltage were analyzed to achieve a VR with fast transient responses. The analyses show that using a low equivalent series resistance (ESR) capacitorwith a carefully determined value and raising switching frequency can decrease outputvoltage fal.l Simulation results verify thatdecreasing the inductance of the inductor reduces the outputvoltage fall and response time by about 20% and 60%, respectively; selecting a capacitorwith the critical capacitance reduces the outputvoltage fallby about40%, but increases response time; and compared with voltagemode contro,l currentmode control reduces the output voltage fall and response time by about20% and 70%, respectively.

     

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      沈阳化工大学材料科学与工程学院 沈阳 110142

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