Start-up of step-up power converter with switched-capacitor network
US11901816B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 10, 2020 |
| Grant date | Feb 13, 2024 |
| Priority date | — |
| Expiry date | Feb 10, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02M1/007
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A step-up power-converter has stack nodes, each of which connects to a stack switch and to a pump capacitor to form a switched-capacitor network. Among the stack nodes are first and second stack-nodes. The second stack-node drives a particular stack switch from the plurality of stack switches. When all of the stack switches are open, the first voltage causes the first stack-node to have a first stack-node voltage and causes the second stack-node to have a second stack-node voltage that is less than the first stack-node voltage. During the first state, the second stack-node voltage is insufficient to drive the particular stack-switch. During the second state, the second stack-node voltage is sufficient to drive the particular stack-switch. Causing the switched-capacitor network to transition from the first state to the second state includes, among other things, causing the second stack-node voltage to become sufficient to drive the particular stack-switch.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.