Abstract
A negative-output high quadratic conversion ratio DC-DC converter with dual working modes is proposed. One working mode is a step-up mode, and the other is a step-up/step-down mode. Analysis of the circuit principle and different operation modes, steady-state calculation, and small-signal modeling are presented. Comparisons of the proposed converter with other converters demonstrate that the proposed converter has a higher conversion ratio in its two working modes and, under the same voltage gain, the proposed converter in the second working mode has the lowest switching device power rating, a higher efficiency, and small peak-to-peak value of input current. Simulation results based on PSpice and circuit experiments are given to verify the effectiveness of the proposed converter.
| Original language | English |
|---|---|
| Article number | 8466008 |
| Pages (from-to) | 5563-5578 |
| Number of pages | 16 |
| Journal | IEEE Transactions on Power Electronics |
| Volume | 34 |
| Issue number | 6 |
| DOIs | |
| State | Published - Jun 2019 |
Keywords
- DC-DC
- dual working modes
- negative-output (N-O)
- quadratic conversion ratio
- step up
- step up/step down