High voltage integrated Miller capacitor feedback circuit
US6590439B1 · kind B1 · utility
13Cited by
4References
19Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 13, 2000 |
| Grant date | Jul 8, 2003 |
| Priority date | — |
| Expiry date | Oct 13, 2020 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02H9/004
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A circuit for controlling an electronic semiconductor switching device to limit the in-rush current when an expansion board is plugged into an electronic system. An integrated thin-film capacitor is used in a high-voltage feedback circuit by attenuating the output voltage, which can be substantially greater than the breakdown voltage of the capacitor, with an integrated voltage divider. An adequate slew rate is obtained using a low capacitance by providing a high-impedance internal feedback node that is coupled to the gate of a power FET with a voltage buffer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.