Name
Title | ||
|---|---|---|
An Advanced Bootstrap Circuit for High Frequency, High Area-Efficiency and Low EMI Buck Converter |
Abstract | ||
|---|---|---|
An advanced bootstrap control circuit with directly sensing bootstrap voltage (DSBV) for a high frequency, high area-efficiency, and low electromagnetic interference (EMI) buck converter in automotive applications is proposed in this brief. By removing the large off-chip capacitor at the output
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of low-dropout regulator (LDO), the relevant current loop around
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to power ground can be eliminated, which is a great contribution for EMI noise mitigation. On the other hand, the fast charging control for bootstrap capacitance has been substituted by a novel bootstrap architecture and is not dependent on the internal capless LDO, which will not degrade high-frequency behavior for the high-side gate driver. This buck converter has been implemented in a 0.35
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high-voltage BCD process and occupies a chip area of
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mm
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, where the active area of bootstrap circuit is
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. Experimental results show that the bootstrap capacitance can be fully charged at MHz switching frequency with a small quiescent current of 43
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. |
Year | DOI | Venue |
|---|---|---|
2019 | 10.1109/TCSII.2019.2909045 | IEEE Transactions on Circuits and Systems II: Express Briefs |
Keywords | Field | DocType |
Electromagnetic interference,Buck converters,Switches,Capacitance,High frequency,Sensors,Voltage control | Topology,Capacitor,Capacitance,Control theory,Voltage,Electromagnetic interference,Buck converter,Mathematics,EMI,Gate driver,Biasing | Journal |
Volume | Issue | ISSN |
66 | 5 | 1549-7747 |
Citations | PageRank | References |
0 | 0.34 | 0 |
Authors | ||
9 | ||
Name | Order | Citations | PageRank |
|---|---|---|---|
| Xin Ming | 1 | 1 | 1.03 |
| Ziwei Fan | 2 | 11 | 3.87 |
| Yangli Xin | 3 | 0 | 0.34 |
| xuan zhang | 4 | 93 | 25.30 |
| Feng Shi | 5 | 0 | 0.34 |
| Shuo Pan | 6 | 0 | 0.34 |
| Jie Zhang | 7 | 0 | 0.34 |
| Zhuo Wang | 8 | 4 | 1.77 |
| Bo Zhang | 9 | 17 | 6.30 |