Ventricular fibrillation is one type of arrhythmia that can be deadly. It occurs when the heart beats with rapid, erratic electrical impulses. This causes pumping chambers in your heart (the ventricles) to quiver uselessly instead of pumping blood.
A VOLTAGE REGULATOR regulates the charging voltage that the alternator produces, keeping it between 13.5 and 14.5 volts to protect the electrical components throughout the vehicle. There is also a system to warn the driver if something is not right with the charging system.
The voltage clamp is a current generator. Transmembrane voltage is recorded through a voltage electrode, relative to ground, and a current electrode passes current into the cell. The experimenter sets a holding voltage, or command potential, and the voltage clamp uses negative feedback to maintain the cell at this voltage.