Hard-wired implanted controller system

A circulatory assist system comprising:

• an implantable electrical device having an electric motor;
• an implantable controller electrically connected to the implantable electrical device, the implantable controller including a drive MOSFET circuit;
• an implantable power source electrically connected to the implantable controller for supplying power to at least one of the implantable controller and the implantable electrical device, the drive MOSFET circuit being configured to at least one of a group consisting of disable a drive signal from the implantable controller and disable the routing of power from the implantable power source through the implantable controller to the implantable electrical device;
• a skin button having a first side and a second side opposite to the first side;
• a cable connectible to the first side of skin button and to the implantable controller for providing electrical communication therebetween, the skin button configured as an electrical interface for at least one of the implantable controller, the implantable power source, and the implantable electrical device;
• and
• a monitoring circuit operable to monitor a condition of power supplied by the implantable power source to at least one of the implantable controller and the implantable electrical device and operation of the implantable controller.