Bridge-less type electric power conversion device having current detection circuit of current transformer type
US10491136B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 26, 2018 |
| Grant date | Nov 26, 2019 |
| Priority date | — |
| Expiry date | Sep 26, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02M1/4233
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An electric power conversion device has an electric power converter and a control device. The control device adjusts an output voltage of the electric power converter to approach a first current flowing a first drive switch to an instruction current during a first period in which an input voltage supplied from an AC power source has a positive polarity, and adjusts the output voltage of the electric power converter to approach a second current flowing a second drive switch to the instruction current during a second period in which the input voltage supplied from the AC power source has a negative polarity. The control device operates a switch arranged in a second current sensor during the first period, and operates a switch arranged in a first current sensor during the second period.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.