Abstract
This paper proposes a reset-sensing quasi-V2 single-inductor multiple-output (SIMO) converter with minimal cross-regulation. The conventional quasi-V2 sensing scheme in SIMO converters suffers from serious cross-regulation which is primarily induced by the load differentiation with unbalanced loads. It is shown that the proposed reset-sensing quasi-V2 control scheme can significantly reduce cross-regulation by completely discharging the feed-forward sensing node to zero volts during the idle phase in Discontinuous Conduction Mode (DCM). The cross-regulation with the conventional quasi- V2 single-inductor dual-output (SIDO) converter for a load current step of 150 mA is experimentally verified to be more than 1.25 mV/mA. By employing the proposed quasi- V2 control method, the experimental results demonstrate that the cross-regulation for a load current step of 150 mA is significantly reduced to within 0.087 mV/mA. Hence, with the proposed scheme, a load transient in one output will have a minimal effect on the DC operating point of another output. This enables separate current control at each individually-driven output of a SIMO converter.
Original language | English |
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Title of host publication | Conference Proceedings - IEEE Applied Power Electronics Conference and Exposition - APEC |
Publisher | Institute of Electrical and Electronics Engineers Inc. |
Pages | 935-940 |
Number of pages | 6 |
DOIs | |
Publication status | Published - 1 Jan 2015 |
Event | 30th Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2015 - Charlotte Convention Center, Charlotte, United States Duration: 15 Mar 2015 → 19 Mar 2015 |
Conference
Conference | 30th Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2015 |
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Country/Territory | United States |
City | Charlotte |
Period | 15/03/15 → 19/03/15 |
Keywords
- Cross-Regulation
- Discontinuous Conduction Mode (DCM)
- Reset-Sensing Quasi-V<sup>2</sup> Control
- Single-Inductor Multiple-Output (SIMO)
ASJC Scopus subject areas
- Electrical and Electronic Engineering