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US 9,807,829 B2Granted
Voltage isolating current control circuits
AssigneeSnapRays LLC
InventorJonathan Jensen
Life of this patent
Estimating the term…
Abstract
In one example, an electrical circuit includes a first functional block with an electrical load to produce an external result, a second functional block with a voltage isolator; a third functional block with a current controller. The first, second, and third functional blocks are connected such that the external result of the electrical load is determined by the current controller acting through the voltage isolator. The voltage isolator may be configured to limit a maximum voltage across the current controller.
Claims20
An electrical circuit comprising:
- a first functional block comprising an electrical load to produce an external result;
- a second functional block comprising a voltage isolator;
- and
- a third functional block comprising a current controller;
- wherein the first, second, and third functional blocks are connected such that the external result of the electrical load is configured to be determined by the current controller acting through the voltage isolator;
- wherein the voltage isolator is configured to limit a maximum voltage across the current controller;
- wherein a controlling current flow through the current controller controls the external result of the electrical load;
- and
- wherein the controlling current flow passes sequentially through the electrical load, the voltage isolator, and the current controller to a current sink.
6 more elements
A functional wall plate comprising:
- a face plate;
- at least three prongs extending rearward from the faceplate configured to electrically contact terminals of a multi-pole switch;
- and
- a circuit electrically connected to the at least three prongs, wherein the circuit comprises:
- a current steering block electrically connected to the at least three prongs and to receive current from the prongs;
- an electrical load to receive the current from the current steering block and produce an external result;
- a voltage isolator connected in electrical series with the electrical load and to receive the current after the electrical current passes through the electrical load;
- and
- a current controller connected in electrical series with the voltage isolator, wherein the current controller is configured to receive the current from the voltage isolator, wherein the current controller is configured to limit the current such that the current controller controls the external result of the electrical load.
6 more elements
An electrical circuit comprising:
- an electrical load comprising a plurality of light emitting diodes in series configured to emit light;
- a current controller;
- a voltage isolator interposed between the electrical load and the current controller, the voltage isolator comprising a depletion mode field effect transistor comprising:
- a drain connected to the electrical load;
- a source connected to the current controller;
- and
- a gate;
- wherein the gate and the source are configured to receive an isolator voltage feedback from the current controller to limit a maximum voltage across the current controller.
5 more elements
Dependencies are inferred from the claim text.