Power-up sequencing and high voltage protection for charge pump converters
US10734891B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 6, 2018 |
| Grant date | Aug 4, 2020 |
| Priority date | — |
| Expiry date | Jun 6, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02M7/05
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Certain aspects of the present disclosure generally relate to methods and apparatus for powering up a charge pump converter and providing protection and soft-start circuitry therefor. One example charge pump converter generally includes a first transistor and a second transistor coupled in series between an input voltage node and an output voltage node of the charge pump converter, a first capacitive element having a first terminal coupled to a node between the first and second transistors, and a first switch coupled to the input voltage node, the first switch being configured to selectively enable a first drive circuit having an output coupled to a control terminal of the second transistor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.