An external defibrillator with an output circuit having four legs arrayed in the form of an “H” (an “H-bridge”) is disclosed. The output circuit is designed to be able to conduct a range of defibrillation pulse energies, from below 50 joules to above 200 joules. Each leg of the output circuit...http://www.google.fr/patents/US6963773?utm_source=gb-gplus-shareBrevet US6963773 - H-bridge circuit for generating a high-energy biphasic waveform in an external defibrillator using single SCR and IGBT switches in an integrated package
H-bridge circuit for generating a high-energy biphasic waveform in an ...