Apparatuses and methods are provided for driving a conductor with a signal comprising a series of pulses for inducing a voltage in an output circuit wirelessly. The pulses can be sufficiently short so as to reduce an amount of current produced along the conductor, thereby reducing the Lenz effect, which is proportional to a change in current along the conductor. Further, the pulses can have a sufficiently fast rise time (e.g., less than 30 ns) to induce a sufficiently high voltage in the output circuit (e.g., greater than 5 or 10 V). A surprisingly high voltage can be induced in an output circuit when using fast rise times of less than 30 ns.