US 12,458,793 B1
Defibrillator with bias generation circuit utilizing synchronous power rectification
Jason Felix, Vashon Island, WA (US); and Gust H. Bardy, Carnation, WA (US)
Assigned to Bardy Technologies, Inc., Vashon, WA (US)
Filed by Bardy Technologies, Inc., Vashon, WA (US)
Filed on Jan. 13, 2025, as Appl. No. 19/018,819.
Application 19/018,819 is a division of application No. 18/806,588, filed on Aug. 15, 2024.
Int. Cl. A61N 1/39 (2006.01); A61N 1/02 (2006.01); A61N 1/04 (2006.01)
CPC A61N 1/025 (2013.01) [A61N 1/046 (2013.01); A61N 1/39046 (2017.08); A61N 1/3937 (2013.01); A61N 1/3956 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A defibrillator with bias generation circuit utilizing synchronous power rectification, comprising:
a bias generation circuit, comprising:
a switching regulator, wherein switched output of the regulator is connected to an input of a primary winding of a transformer and wherein an output of a primary winding of the transformer is rectified to create a regulated DC voltage which powers a microcontroller that is in control of a solid-state therapeutic defibrillation waveform generator;
one or more secondary windings of the transformer whose energy is rectified by a synchronous rectifier, wherein the rectified energy is used to supply one or more bias voltages to the solid-state therapeutic defibrillation waveform generator that is used to create a therapeutic defibrillation waveform; and
the synchronous rectifier, wherein one or more of the winding pairs of the transformer are configured in a step-up configuration.