Abstract
This brief provides a simple yet novel structure to achieve voltage conversion ratio (VCR) that exceeds the theoretical attainable VCR of topological switched-capacitor DC-DC converters (SCC). Typically, the SCC terminals are connected to the input voltage, the output voltage, or the ground reference. The proposed structure in this brief utilizes the ground-connected terminals and instead connecting them to negative input voltage provided by a negator stage. Here, two types of SCC are used as case studies: Series-parallel (SPSC) and Fibonacci (FSC). The model for the proposed structure is constructed and verified experimentally using 3-stage SPSC and FSC. The experimental results are in good agreement with the proposed model with an error of less than 5% in all cases. The VCR obtained from the proposed structure exceeds the theoretical limits of conventional topological structures.
| Original language | English |
|---|---|
| Pages (from-to) | 1465-1469 |
| Number of pages | 5 |
| Journal | IEEE Transactions on Circuits and Systems II: Express Briefs |
| Volume | 70 |
| Issue number | 4 |
| DOIs | |
| State | Published - 1 Apr 2023 |
Bibliographical note
Publisher Copyright:© 2004-2012 IEEE.
Keywords
- Fibonacci switchedcapacitor converters (FSC)
- Switched-capacitor converter (SCC)
- and voltage conversion ratio (VCR)
- high-gain DC-DC converters
- series-parallel (SPSC)
ASJC Scopus subject areas
- Electrical and Electronic Engineering