Bootstrap controller for switching power supply
US9577505B1 · kind B1 · utility
1Cited by
3References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 28, 2015 |
| Grant date | Feb 21, 2017 |
| Priority date | — |
| Expiry date | Jul 28, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02M3/1588
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Systems and methods for operating a switching converter are disclosed. The switching converter includes a high-side transistor coupled between a voltage input and a switching node and a low-side transistor coupled between the switching node and ground. The switching converter also includes a high-side driver coupled to drive a gate of the high-side transistor, a charge pump coupled to the high-side driver, and a bootstrap circuit, which includes a pass transistor coupled between the charge pump and the switching node, and a pull-down transistor coupled between the charge pump and ground.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.