Low current oscillator structure with common mode transient noise cancelation

A system comprising:

• message output circuitry;
• message receiving circuitry;
• isolated data transmission circuitry configured to receive a control signal from the message output circuitry and transmit a message based on the control signal to the message receiving circuitry, the data transmission circuitry comprising:
• an oscillator circuit comprising differential output terminals;
• a feedback circuit comprising a common mode detector configured to automatically control a gain of the oscillator circuit, the common mode detector:
• comprising differential input terminals connected to the differential output terminals of the oscillator circuit;
• and
• in response to sensing a common mode disturbance at the differential output of the oscillator circuit, the common mode detector is configured to automatically control the gain to increase an output voltage amplitude at the differential output terminals for a duration of the common mode disturbance.

A method of transmitting a message from message output circuitry over an isolation barrier to message receiving circuitry;

• the method comprising:
• receiving, by isolated data transmission circuitry, a control input from the message output circuitry,
• wherein the data transmission circuitry comprises an oscillator circuit and a feedback circuit, and
• wherein the feedback circuit comprises a common mode detector;
• controlling the oscillator circuit to turn off or to turn on based on the control input, wherein the oscillator circuit comprises differential output terminals;
• and
• in response to sensing a common mode disturbance at the differential output of the oscillator circuit, increasing, by the common mode detector of the feedback circuit, an output voltage amplitude at the differential output terminals for a duration of the common mode disturbance.