Load driver and control method for safely driving DC load and computer-readable recording medium with program recorded thereon for allowing computer to execute the control
USRE41303E1 · kind E1 · reissue
Assignee
Inventors
Key dates
| Filing date | Apr 6, 2006 |
| Grant date | May 4, 2010 |
| Priority date | — |
| Expiry date | Apr 6, 2026 |
Classification
- Technology area (CPC —)General
Abstract
In regenerative braking mode, an inverter converts, according to PWMC signal from a control unit, an AC voltage generated by a motor into a DC voltage to supply the converted DC voltage to an up-converter which down-converts the DC voltage to charge a DC power supply. The control unit receives voltage V2 from a voltage sensor to stop the up-converter if voltage V2 is higher than a predetermined value. The control unit further receives voltage Vf from a voltage sensor that is applied to a DC/DC converter and stops the up-converter if voltage Vf is higher than a predetermined value. Moreover, the control unit receives voltage V1 of the DC power supply from a voltage sensor to stop the up-converter if voltage V1 does not match voltage V2.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.