Wireless power transmission equipment used for implantable cardiac pacemakers

Wireless Power Transfer (WPT) technology has gotten rapid development with its advantages of flexible and convenient. As a safe, reliable and flexible power supply, the introduction of WPT technology promotes the development of implantable medical electronic devices. In this paper, a novel inductive power transfer (IPT) system with redundant parallel receiving coils is proposed to enhance the system's power capacity and the WPT system is still guaranteed to work properly in the event of a fault in any of the receiving coils. This structure based on the double receiving coil connected in parallel with the load has the advantages of stable working condition, less magnetic flux leakage, and redundant design to ensure safety.