Back to results
US 9,312,684 B2Granted
Solid state switch
AssigneeRemy Technologies, L.L.C.
InventorWilliam E. Bowman
Life of this patent
Estimating the term…
Abstract
A solid-state switch includes a plurality of transistors connected in parallel and a plurality of fuses. Each fuse is connected in series with a separate one of the plurality of transistors. A combination of current ratings of the plurality of fuses is greater than a load current of a load connected to the plurality of transistors and the plurality of fuses, and a current rating of each separate fuse of the plurality of fuses is less than the load current.
Claims16
A solid-state switch, comprising:
- a plurality of transistors connected in parallel;
- a plurality of fuses, each fuse of the plurality of fuses connected in series with a separate one of the plurality of transistors;
- wherein a combination of current ratings of the plurality of fuses is greater than a load current of a load connected to the plurality of transistors and the plurality of fuses, and
- a current rating of each separate fuse of the plurality of fuses less than the load current.
1 more element
A solid-state switch, comprising:
- a first transistor;
- a first fuse connected to one of a source and a drain of the first transistor and to a common node;
- a second transistor having a gate connected to a gate of the first transistor;
- a second fuse connected to one of a source and a drain of the second transistor and to the common node;
- a third transistor having a gate connected to the gates of the first and second transistors;
- and
- a third fuse connected to one of a source and a drain of the third transistor and to the common node,
- wherein the first transistor and first fuse are connected in parallel with the second transistor and the second fuse, and with the third transistor and the third fuse,
- a current rating of each of the first, second and third fuses is less than a load current of a load connected to the first, second and third transistors, and
- a combination of the current ratings of the first, second and third fuses is greater than the load current.
7 more elements
A motor assembly, comprising:
- a battery;
- a load configured to operate at a load current;
- and
- a solid-state switch connected between the battery and the load, the solid-state switch comprising a plurality of transistors connected in parallel between the battery and the load and a plurality of fuses connected in series with the plurality of transistors, such that each one of the plurality of fuses is connected in series with a separate one of the plurality of transistors, the plurality of transistors and the plurality of fuses configured such that a first fuse of the plurality of fuses is opened to prevent current flow through a first transistor based on the rest of the transistors being turned off and the first transistor remaining on.
1 more element
Dependencies are inferred from the claim text.