Integrated circuits and methods of forming integrated circuits are provided. Each electrode comprises a skin-contacting gel layer, a current-spreading layer, and an adhesive layer for adhering the electrode to the patient. Tilting of the container causes, by gravity effect, the pivoting of the angled piece and then the pivoting of the pivoting piece thus released from the hook, towards an unlocked position. One embodiment uses a current sensor for lossless current sensing and emulates the change in inductor current by holding the value of the output of the current sensor at the time that the low side switch turns off and adding an emulated ramp signal until the inductor current reaches zero.