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Coulomb Counter for Implantable Devices and External Controller

IP.com Disclosure Number: IPCOM000019737D
Publication Date: 2003-Sep-26

Publishing Venue

The IP.com Prior Art Database


A coulomb counter is used in an implanted medical device that is powered by an energy storage device such as a primary or rechargeable battery. The coulomb counter is used to measure or calculate the quantity of charge flowing into the energy storage device or discharged from the energy storage device to thereby provide rates of charging or discharge and calculate the level of energy remaining in the energy storage device or time remaining left to complete a full recharge. In addition, the coulomb counter may be used in an external controller or device programmer, which is powered by an energy storage device.