Systems and methods for galvanic interface bond detection for inverter for electric vehicle

A method comprising:

• receiving, by one or more controllers, a first pulse, and transmitting, by the one or more controllers, a first galvanic isolator pulse based on the first pulse;
• receiving, by the one or more controllers, a second pulse, and transmitting by the one or more controllers, a second galvanic isolator pulse based on the second pulse;
• receiving, by the one or more controllers, the first galvanic isolator pulse and the second galvanic isolator pulse and transmitting by the one or more controllers, a first biased pulse based on the first galvanic isolator pulse and a second biased pulse based on the second galvanic isolator pulse;
• receiving, by the one or more controllers, the first biased pulse and the second biased pulse and transmitting by the one or more controllers, a first amplified pulse based on the first biased pulse and a second amplified pulse based on the second biased pulse;
• detecting, by the one or more controllers, a first peak of the first amplified pulse and a second peak of the second amplified pulse;
• generating, by the one or more controllers, a difference between the detected first peak of the first amplified pulse and the detected second peak of the second amplified pulse;
• comparing, by the one or more controllers, the difference with a threshold current reference;
• and
• generating, by the one or more controllers, an output pulse based on the comparing,
• wherein the generating the difference includes:
• converting the detected first peak of the first amplified pulse from a voltage signal to a current signal;
• converting the detected second peak of the second amplified pulse from a voltage signal to a current signal;
• subtracting the converted second peak of the second amplified pulse from the converted first peak of the first amplified pulse, as a first difference;
• and
• subtracting the converted first peak of the first amplified pulse from the converted second peak of the second amplified pulse, as a second difference.

A system comprising:

• a first galvanic isolator configured to receive a first pulse from a pulse transceiver and output a first galvanic isolator pulse based on the received first pulse;
• a second galvanic isolator configured to receive a second pulse from the pulse transceiver and generate a second galvanic isolator pulse based on the received second pulse;
• and
• one or more controllers configured to:
• receive the first galvanic isolator pulse and the second galvanic isolator pulse as a first voltage signal and a second voltage signal,
• convert the first voltage signal and the second voltage signal to a first current signal and a second current signal,
• perform a comparison of the first current signal and the second current signal, with one or more of each other or one or more reference signals, and
• determine a fault in one or more of the first galvanic isolator or the second galvanic isolator based on the comparison,
• wherein the one or more controllers are further configured to perform the comparison of the first current signal and the second current signal by:
• subtracting the second current signal from the first current signal, as a first difference;
• and
• subtracting the first current signal from the second current signal, as a second difference.