Charging circuit for capacitor
US9048675B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 1, 2012 |
| Grant date | Jun 2, 2015 |
| Priority date | — |
| Expiry date | Mar 14, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02J7/345
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A charging circuit for a capacitor includes a current mirror module including a first branch circuit, a second branch circuit and a third branch circuit for supplying a plurality of output currents respectively, a switching module coupled to the first branch circuit and the second branch circuit for determining a conducting condition of the switching module according to the plurality of output currents from the first branch circuit and the second branch circuit, and an active loading circuit coupled to the third branch circuit and the switching module for adjusting a current passing through the active loading circuit according to the conducting condition of the switching module. The capacitor has one end coupled to the first branch circuit and the switching module to process a charging operation according to the output current of the first branch circuit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.