Systems, devices and methods allow inductive recharging of a power source located within or coupled to an implantable medical device while the device is implanted in a patient. The recharging system/device in some examples includes a first electrical coil and a second electrical coil configured to generate opposing magnetic fields forming a resultant magnetic field within a recharging envelope located between the coils. A third coil of the implantable medical device may be positioned within the recharging envelope so that the resultant magnetic field is imposed on the third coil, causing electrical energy to be induced in the third coil, the induced electrical energy used to recharge a power source of an implantable medical device coupled to the third coil, and/or to power operation of the implantable medical device.

A system and apparatus comprise at least one power supply connected to a terminal bloc, an I/O system configured to receive instructions provided to the control system, a control block connected to the I/O system wherein the instructions provided to the I/O system are converted to a serial output; and a puck connected to the serial output and configured to receive power from the terminal block, to process the serial output, and to output a current.

A method of providing a single structure multiple mode antenna is described. The antenna is preferably constructed having a first inductor coil that is electrically connected in series with a second inductor coil. The antenna is constructed having a plurality of electrical connections positioned along the first and second inductor coils. A plurality of terminals is connected to the electrical connections that facilitate numerous electrical connections and enables the antenna to be selectively tuned to various frequencies and frequency bands.

A method of providing a single structure multiple mode antenna is described. The antenna is preferably constructed having a first inductor coil that is electrically connected in series with a second inductor coil. The antenna is constructed having a plurality of electrical connections positioned along the first and second inductor coils. A plurality of terminals is connected to the electrical connections that facilitate numerous electrical connections and enables the antenna to be selectively tuned to various frequencies and frequency bands.

A transportable power supply unit has at least one rechargeable electrical store for storing electric power and having a housing. At least one inverter converts a DC voltage of the rechargeable electrical store into a first AC voltage, such as a first grid voltage and/or first three-phase current, and/or into a second AC voltage. At least one connection unit, such as at least one socket and a plug, is provided for the first AC voltage and/or for the grid voltage. The connection unit is in the form of an AC voltage output of the inverter for the first AC voltage. At least one detachably connectable connecting unit is provided for the rechargeable electrical store. The connecting unit comprises at least one electrical contact apparatus for making detachably connectable contact with the rechargeable electrical store and at least one detachably connectable retaining apparatus for detachably connectably retaining the rechargeable electrical store in the housing.

A transportable power supply unit has at least one rechargeable electrical store for storing electric power and having a housing. At least one inverter converts a DC voltage of the rechargeable electrical store into a first AC voltage, such as a first grid voltage and/or first three-phase current, and/or into a second AC voltage. At least one connection unit, such as at least one socket and a plug, is provided for the first AC voltage and/or for the grid voltage. The connection unit is in the form of an AC voltage output of the inverter for the first AC voltage. At least one detachably connectable connecting unit is provided for the rechargeable electrical store. The connecting unit comprises at least one electrical contact apparatus for making detachably connectable contact with the rechargeable electrical store and at least one detachably connectable retaining apparatus for detachably connectably retaining the rechargeable electrical store in the housing.

A load-sharing device shares electrical load between a high-ranking load and a low-ranking load. A current transformer connected between a circuit breaker panel and the high-ranking load senses current draw. The current transformer closes a first switch when sufficient current is detected and opens the first switch otherwise. Low-voltage power is connected across nodes of the first switch. A control circuit is connected in parallel with the first switch to control one or more second switches connected between the circuit breaker panel and a low-ranking load. When there is current flow in the control circuit, the second switches are closed, thereby permitting power delivery to the low-ranking load and when there is no current flow in the control circuit, the one or more second switches are open circuited. When the first switch is closed, it provides a short circuit, thereby preventing current flow in the control circuit.

A computer implemented method for managing charge availability of a charge unit (CU) to obtain charge for a battery of an electric vehicle (EV) is provided. The CU includes a computer for processing at least part of the method and for communicating with a server over a network. The method includes receiving, by the server, status information from the computer of the CU. The method includes sending to the computer of the CU instructions to make a reservation for the CU. The reservation is for a user account that has requested a desire to charge the battery of the electric vehicle of the user at the CU or another CU. The method includes sending, by the server, a confirmation for the reservation to the user account. The confirmation is viewable via a device having access to the server via the user account. The method includes sending, by the server, a data regarding a time of availability of the CU to the user account for the reservation. The computer of the CU is configured to display a visual indicator regarding the reservation of the CU.

A computer implemented method for managing charge availability of a charge unit (CU) to obtain charge for a battery of an electric vehicle (EV) is provided. The CU includes a computer for processing at least part of the method and for communicating with a server over a network. The method includes receiving, by the server, status information from the computer of the CU. The method includes sending to the computer of the CU instructions to make a reservation for the CU. The reservation is for a user account that has requested a desire to charge the battery of the electric vehicle of the user at the CU or another CU. The method includes sending, by the server, a confirmation for the reservation to the user account. The confirmation is viewable via a device having access to the server via the user account. The method includes sending, by the server, a data regarding a time of availability of the CU to the user account for the reservation. The computer of the CU is configured to display a visual indicator regarding the reservation of the CU.

A method of providing a single structure multiple mode antenna is described. The antenna is preferably constructed having a first inductor coil that is electrically connected in series with a second inductor coil. The antenna is constructed having a plurality of electrical connections positioned along the first and second inductor coils. A plurality of terminals is connected to the electrical connections that facilitate numerous electrical connections and enables the antenna to be selectively tuned to various frequencies and frequency bands.