Inverter driver and method
US6927607B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 8, 2003 |
| Grant date | Aug 9, 2005 |
| Priority date | — |
| Expiry date | Aug 8, 2023 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02B20/00
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An inverter driver comprises: an inverter circuit including first and second switches, inverting DC components into AC components in response to switching by the first and second switches to drive a load; a control signal supply outputting a first voltage corresponding to a voltage caused by sensing the current flowing to the load, and outputting a second voltage, and a third voltage generated by multiplying the first voltage by a gain; a frequency controller including a capacitor and an oscillator, controlling a first current charged in/discharged from the capacitor through the oscillator in response to the first voltage; and a duty controller comparing the third voltage and a fourth voltage charged in the capacitor, and controlling the duty of the first and second switches.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.