Electrical assembly for connection with battery and electrical load

An electrical assembly configured for connection with a battery and an electrical load, the electrical assembly comprising:

• a first transistor;
• a second transistor electrically connected in parallel with the first transistor;
• a third transistor connected in parallel with the first transistor and the second transistor;
• a first operational amplifier (op-amp) electrically connected with the first transistor and the second transistor;
• a second op-amp electrically connected with the first transistor and the second transistor;
• a comparator electrically connected with the first op-amp and the second op-amp;
• and
• a controller electrically connected with the first transistor, the second transistor, the third transistor and the comparator and configured to:
• control the first transistor and the second transistor;
• determine an operational status of the first transistor and the second transistor based on an output of the comparator;
• and
• determine an operational status of the third transistor based on additional outputs from the comparator.

An electrical assembly configured for connection with a battery and an electrical load, the electrical assembly comprising:

• a first transistor;
• a second transistor electrically connected in parallel with the first transistor;
• a first operational amplifier (op-amp) electrically connected with the first transistor and the second transistor;
• a second op-amp electrically connected with the first transistor and the second transistor;
• a comparator electrically connected with the first op-amp and the second op-amp;
• a controller electrically connected with the first transistor, the second transistor, and the comparator and configured to:
• control the first transistor and the second transistor;
• and
• determine an operational status of the first transistor and the second transistor based on an output of the comparator;
• and
• a third transistor electrically connected with the controller and the first op-amp and connected in series with the first transistor and the second transistor.

An electrical assembly configured for connection with a battery and an electrical load, the electrical assembly comprising:

• a first transistor;
• a second transistor electrically connected in parallel with the first transistor;
• a first operational amplifier (op-amp) electrically connected with the first transistor and the second transistor;
• a second op-amp electrically connected with the first transistor and the second transistor;
• a comparator electrically connected with the first op-amp and the second op-amp;
• a controller electrically connected with the first transistor, the second transistor, and the comparator and configured to:
• control the first transistor and the second transistor;
• and
• determine an operational status of the first transistor and the second transistor based on an output of the comparator;
• a first resistor electrically connected with the second op-amp and the comparator, the first resistor disposed between the second op-amp and the comparator;
• and
• a second resistor electrically connected with the first resistor and ground,
• wherein the first resistor and the second resistor act as a voltage divider during health checks of the first transistor and the second transistor.

A method of operating an electrical assembly configured for connection with a battery and an electrical load, the method comprising:

• providing a first transistor and a second transistor electrically connected in parallel with the first transistor;
• providing a first operational amplifier (op-amp) electrically connected with the first transistor and the second transistor;
• providing a second op-amp electrically connected to the first transistor and the second transistor;
• providing a comparator electrically connected with the first op-amp and the second op-amp;
• providing a controller electrically connected with the first transistor, the second transistor, and the comparator;
• controlling, via the controller, the first transistor and the second transistor;
• and
• determining, via the controller, an operational status of the first transistor and the second transistor based on an output of the comparator,
• wherein the electrical assembly is configured for connection with a vehicle, and
• wherein the method further includes continuously monitoring, via the controller, gate voltages and temperatures of the first transistor and the second transistor during operation of the vehicle.