| 摘要 |
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. |
| 主权项 |
1. An electric circuit adapted for cutting off a power supply of an electrical equipment (2), said electric circuit receiving as input at least two discrete electrical signals xi, i=1, N (x1, x2, x3), the electric circuit comprising:
a voltage source (+Vpp); a number N>1 cut-off units connected Ui, i=1, . . . , N (U1, U2, U3) in series to each other between the voltage source (+Vpp) and the electrical equipment, a last cut-off unit UN (U3) being connected to the electrical equipment, each cut-off unit Ui (U1, U2, U3) having an open or closed state depending on an electrical control signal (x1, x2, s3); the cut-off units Uj, j=1, N−1 (U1, U2) upstream of the last cut-off unit UN are each controlled by a distinct discrete electrical signal xj, j=1, . . . , N−1, the last cut-off unit being controlled as a function of the state (E1, E2) of the upstream cut-off units Uj, j=1, . . . , N−1 and a discrete electrical signal XN different from that controlling the upstream cut-off units Uj, j=1, N−1, the last cut-off unit being controlled to isolate the electrical equipment when the upstream cut-off units of the last cut-off unit have a divergent state. |
