A boost converter with 3-6V input and fast transient digital control comprising a 90 ns-latency live-tracking window ADC
- This paper presents a digitally controlled boost converter IC for high output voltage and fast transient applications. Thus, it is well applicable in automotive and industrial environments. The 3V-to-6V input voltage, 6.3V output voltage, 1A boost converter IC is fabricated in a 180nm BCD technology. Digital control enables cost savings, advanced control concepts, and it is less parameter sensitive compared to common analog control. A 90 ns latency, 6-bit delay line ADC operates with a window concept, meeting high resolution requirements, e.g. in car battery applications. An output voltage live tracking is included for extending the ADC conversion window. A charge pump DAC provides high resolution, monotonicity, and short 128 ns conversion time. Further, a standard digital PI controller is enhanced by a simple but effective ΔV/Δt-intervention control. It results in 2.8x reduced output voltage deviations in case of load steps, scaling down the output capacitor value by the same factor.
| Author of HS Reutlingen | Quenzer-Hohmuth, Samuel; Wicht, Bernhard |
|---|---|
| DOI: | https://doi.org/10.1109/ESSCIRC.2018.8494242 |
| ISBN: | 978-1-5386-5404-0 |
| Erschienen in: | ESSCIRC 2018 : IEEE 44th European Solid State Circuits Conference (ESSCIRC) : 3-6 Sept. 2018 |
| Publisher: | IEEE |
| Place of publication: | Piscataway, NJ |
| Document Type: | Conference Proceeding |
| Language: | English |
| Year of Publication: | 2018 |
| Page Number: | 4 |
| First Page: | 130 |
| Last Page: | 133 |
| DDC classes: | 620 Ingenieurwissenschaften und Maschinenbau |
| Open Access?: | Nein |
| Licence (German): |  Lizenzbedingungen IEEE |
