Electric circuit for cutting off an electrical supply with relay and fuses
US9276395B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 21, 2013 |
| Grant date | Mar 1, 2016 |
| Priority date | — |
| Expiry date | Jun 21, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02J2310/44
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The invention relates to an electrical circuit adapted for cutting off an electrical supply to an electrical equipment, said electrical circuit receiving as input at least two discrete electrical signals xi, i=1, N, the electrical circuit comprising: —a voltage source; —a number N>1 cutoff units Ui connected together, i=1, . . . , N in series between the voltage source and the electrical equipment, and a last cutoff unit UN being connected to the electrical equipment, each cutoff unit Ui exhibiting an open or closed state as a function of an electrical control signal; the cutoff units Uj, j=1, N−1 upstream of the last cutoff unit UN each being controlled by a distinct discrete electrical signal xj, j=1, . . . , N−1, the last cutoff unit being controlled as a function of the state of the cutoff units Uj, j=1, . . . , N−1 upstream and a discrete electrical signal xN different from that controlling the upstream cutoff units Uj, j=1, N−1.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.