US 2023/0099672 A1Published application

Charging circuit for a defibrillator

AssigneesAltrix Medical, Inc., Defibtech, LLC

InventorsGene Glick, Daniel Fleck, David Hicks, Michael Hicks, Matthew Shaker

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Abstract

A charging circuit for a capacitor in a defibrillator includes a control enabling a setting of a desired time to charge a capacitor to a desired voltage in the defibrillator. The charging circuit further includes a flyback charge-pump circuit comprising a switch, an energy transfer transformer, an energy storage capacitor and a control. The switch is configured to stop or allow storage of energy in a transformer. The transformer transfers the energy to the capacitor. The flyback charge-pump circuit controls a duty-cycle on the switch so that a current draw from a power source (e.g. battery) is sufficient to enable charging the capacitor to the desired voltage within the desired time set on the control.

Claims14

Dependent claims

A charging circuit for a capacitor in a defibrillator, the charging circuit comprising:

a control enabling a setting of a desired time for charging a capacitor in the defibrillator;
a transformer comprising:
a primary-side circuit and a secondary-side circuit, the secondary-side circuit galvanically isolated from the primary-side circuit;
the primary-side circuit comprising a primary-side induction coil;
and
the secondary-side circuit comprising a secondary-side induction coil configured to receive the magnetic energy input by the primary-side induction coil;
a power source electrically connected to the primary-side circuit;
and
a power translator configured to vary a power draw from the power source to meet the setting on the control of the desired time for charging the capacitor.

6 more elements

Dependencies are inferred from the claim text.