Title

Vr Transient Improvement At High Slew Rate Load - Active Transient Voltage Compensator

Keywords

Active transient voltage compensator (ATVC); High slew rate; Load line; Synchronous buck converter; Voltage regulator (VR)

Abstract

To meet the stringent transient response requirements of a voltage regulator (VR) at high slew rate load current while keeping high VR efficiency, this paper proposes a new topology: active transient voltage compensator (ATVC). ATVC only engages in transient periods operating at several MHZ to handle ac current and main VR operates at low switching frequency for better efficiency mainly providing dc current. ATVC injects a very high slew rate current in step up load and recovers energy in step down load. With introduction of a transformer, ATVC significantly reduces its conduction and switching losses due to the reduced current. Also, the new topology reduces the number of VR bulk capacitors while keeping the same output impedance. A built prototype and detailed experimental results verify the theoretical analysis. © 2007 IEEE.

Publication Date

7-1-2007

Publication Title

IEEE Transactions on Power Electronics

Volume

22

Issue

4

Number of Pages

1472-1479

Document Type

Article

Personal Identifier

scopus

DOI Link

https://doi.org/10.1109/TPEL.2007.900601

Socpus ID

34547127155 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/34547127155

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