ARRAYS FOR DELIVERING TUMOR TREATING FIELDS (TTFIELDS) WITH SELECTIVELY ADDRESSABLE SUB-ELEMENTS

Tumor treating fields (TTFields) can be delivered to a subject's body at higher field strengths by switching off one or more electrode elements that are overheating without switching off other electrode elements that are not overheating. This may be accomplished using a plurality of temperature sensors, with each of the temperature sensors positioned to sense the temperature at a respective electrode element, and a plurality of electrically-controlled switches, each of which is wired to switch the current to an individual electrode element on or off. A controller receives input signals from the temperature sensors to determine the temperature at each of the electrode elements, and controls each of the electrically-controlled switches selectively to switch off the current or adjust the duty cycle at any electrode element that is overheating.