An apparatus and method for delivering electrical shock therapy in order to treat atrial tachyarrhythmias such as fibrillation in which the energy stored in a capacitor used to deliver a shock pulse is monitored and adjusted. A charging circuit is used to charge the capacitor from a supply voltage upon...http://www.google.de/patents/US7203539?utm_source=gb-gplus-sharePatent US7203539 - Apparatus and method for energy management in atrial defibrillator
