Abstract: A rechargeable implantable neuro stimulator may include a neuro stimulation waveform generator configured to generate neuro stimulation signals. The neurostimulator may further include at least one electrode, at least one rechargeable battery configured to power the neurostimulator, and a coil for receiving power. The coil may be electrically connected to the circuitry for use in recharging the battery using the power received by the coil. The neurostimulator may further include two or more sensors configured for use in determining temperature and a controller.

Abstract: A system may include at least two coil circuit branches, a driver, and a controller. Each of the at least two coil circuit branches may include a coil and a switch. The at least two coil circuit branches may be connected in parallel. The driver may be connected to the at least two coil circuit branches that are connected in parallel. The driver may be configured to drive the coils in the at least two coil circuit branches. The controller may be configured to independently control the switch in each of the at least two coil circuit branches to independently control whether the driver is electrically connected to drive the coil in the corresponding coil circuit branch. Some system embodiments include a dedicated driver for each of the coil circuit branches, and a controller configured to independently control the drivers to independently control whether individual coils are driven.