초록 ▼

A power management system for an implantable device is disclosed. One application is an implantable cardioverter/defibrillator. Charging circuits for implantable cardioverter/defibrillators require relatively large currents from the power supply. The present power management system provides extended

A power management system for an implantable device is disclosed. One application is an implantable cardioverter/defibrillator. Charging circuits for implantable cardioverter/defibrillators require relatively large currents from the power supply. The present power management system provides extended device operation and reduced charge cycle time. The present system monitors both current and voltage drawn from the power supply to prevent a loss of system voltage. Elective replacement indication is performed using charging information provided by the present power management system.

대표청구항 ▼

[ We claim:] [1.] A self-oscillating switch for an inverter, comprising:a power supply, connected in series with a primary winding of the inverter and a sensefet;a detector, connected to the primary winding to detect a reverse voltage polarization; anda switching circuit, receiving a signal from the

[ We claim:] [1.] A self-oscillating switch for an inverter, comprising:a power supply, connected in series with a primary winding of the inverter and a sensefet;a detector, connected to the primary winding to detect a reverse voltage polarization; anda switching circuit, receiving a signal from the detector, for initiating a subsequent switching event after detection of a ringback signal from the detector.