A high-voltage pulse generator including a plurality of stages and an electrode for returning current to ground, connected in series, each of the stages including at least one energy storage element connected in series with a spark gap. The spark gaps are distributed on an axis, the odd-numbered energy storage elements are arranged on one side of the spark gap axis, and the even-numbered energy storage elements are arranged on the other side of the spark gap axis, such that the circuit formed by the plurality of stages and the current return electrode have a reduced inductance during a discharge phase of the generator, with respect to a generator including the same components laid out according to a conventional architecture.

A DC generation and storage device including a power generation section with single or multiple layers of an electret film. A rectifier is connected to the electret film, which in turn is connected to a DC to DC or a DC to AC converter. A power storage device will be connected to the converter. This device is placed within a tire/wheel or a mat substructure described in many forms such that the act of putting pressure on the wheel/tire or the layered mat area as described by rolling or driving and by walking or running or other means will create electricity from day to day activity. The power in the tire is then transferred to a power storage device by means of a wireless charging system

A piezoelectric element for power generation and a power generation device using the same according to the present invention can maximize an electromotive force generated by the piezoelectric element by converting an external force (a natural force or a load force of a person/vehicle or the like) transferred from the outside into an instantaneous impact force and transferring the impact force to the piezoelectric element.

An energy harvesting roadway that includes a plurality of road segments and a power storage device electrically coupled to the plurality of road segments. Each of the plurality of road segments can include a surface asphalt layer, a first conductive asphalt layer located under the surface asphalt layer, a piezoelectric-based asphalt layer located between the first conductive layer and a second conductive layer located above a base asphalt layer. The piezoelectric-based asphalt layer can include a plurality of rigid piezoelectric elements and an insulating filler.

The disclosed method of generating electrical energy uses a body (36) set in reciprocating motion (M5, M6) to and from a piezoelectric element (22) such that the body is caused to make impact and apply pressure (F56) on the piezoelectric element, thereby developing electrical charge which is collected as electrical energy from the electrodes of the piezoelectric element. A reciprocating mechanism (32), for example, a crank mechanism including rotating member (34) and reciprocating member (36), to convert rotating motion into reciprocating motion, and a gear train (52) for changing input rotational speed, can be included.

A power generating device is provided. The power generating device includes an element and a moving member. The element is deformable and generates power when deforming. The moving member moves when receiving a vibration, and contacts the element when moving. When the moving member contacts the element, the element deforms into another state or returns to a previous state.

Disclosed herein is an auxiliary generator for a vehicle that converts kinetic energy of the vehicle into electrical energy, the auxiliary generator including a spherical inertial body configured to be movable in a direction opposite to a direction in which the vehicle moves due to inertial force obtained from movement of the vehicle, a fixed pipe having the movable spherical inertial body received therein, a generation member mounted in the fixed pipe for generating electrical energy from movement of the spherical inertial body, and a converter electrically connected to the generation member for converting the electrical energy generated by the generation member into available electricity.

An hitting-electric device and a power generation device using the same according to the present invention may include a wind power collection unit including a fixed blade part, and a rotation blade part, accommodated in the fixed blade part and provided to be rotatable relative to the fixed blade part; a rotation shaft coupled to the rotation blade part and disposed extending downwardly, and provided with at least one trigger to which hitting-electric power is applied along an outer surface periphery; and an generation unit provided at a lower portion of the wind power collection unit and generating electricity by a hitting-electric power which the trigger hits.

An electrical energy harvesting device for harvesting electrical energy from a pulsed impact loading event. The device including: a piezoelectric element configured to be loaded and unloaded to a first load level by the pulsed impact loading event; and a first inductor coupled to the piezoelectric element configured to be loaded and unloaded to a second load level by the pulsed impact loading event, wherein the piezoelectric element and the first inductor together operate as a first inductor/capacitor (LC) resonant circuit having a first resonance frequency and wherein the loading of the first inductor lags in time the loading of the piezoelectric element.

An electric energy scavenger device has a housing forming an internal chamber with an internal wall, and a movable element contained within the internal chamber. The movable element is freely movable and unconnected to any other movable element within the internal chamber. Within the internal chamber, the device also has a plurality of piezoelectric charge conversion elements positioned along the internal wall. The plurality of piezoelectric charge conversion elements are positioned side-by-side to contact the movable element when the movable element moves within the internal chamber. In addition, the movable element is configured to simultaneously contact at least two of the plurality of side-by-side piezoelectric charge conversion elements. During use, the movable element is freely movable within the internal chamber in response to movement of the entire housing.