Abstract: The invention relates to a carrier element for a motor vehicle made of steel, which comprises at least one closed cross-sectional area and at least one rolled profile produced from a tailored strip, which extends in longitudinal direction of the carrier element. In addition to this, the invention relates to a body of a motor vehicle. The object of making available a carrier element for a motor vehicle that cannot only be produced in a simple manner and can provide high strengths with same manufacturing costs is solved in that through the rolled profile a carrier element having at least one at least partially closed cross-sectional area is formed.

Abstract: An opening and/or closing device for a movable, flexurally rigid and at least regionally transparent wall element of a motor vehicle is provided. The device includes at least one supporting arm and at least one supporting body. The supporting arm and the supporting body encompass a first end that faces the wall element and is pivoted to the wall element, and encompass a second end that faces away from the wall element and is pivoted to a vehicle structure. By turning the supporting arm and the supporting body, the wall element is moved from an open functional position, in which a vehicle interior is accessible from outside for entry and/or egress and in which the wall element is situated in a frontal area of the motor vehicle, into a closed functional position, in which the vehicle interior is sealed to the outside by the wall element.

Abstract: A furniture member mechanism includes a first actuator device electrically operated to displace first and second seat back actuation links connected to and operating to rotate a seat back member between upright and fully reclined positions. A pantograph linkage set connected to a leg rest member is at least partially supported in an extended position by rotational contact with a support rod. A second actuator device identical to the first actuator device is electrically operated to axially rotate a drive rod connected to a drive link. The drive link is connected to and displaces the pantograph linkage set between the stowed and extended positions. A swing lever rotatably connected to the support rod is rotated during operation of the second actuator device to extend the pantograph linkage set. The swing lever in a fully rotated position displaces the support rod creating a furniture member tilt position.

Abstract: The towel is made of 100% cotton. There is extra material stitched to the back of the towel to allow it to wrap around a standard lawn chair. Furthermore, pockets are stitched into the back of the towel allowing it to hold standard everyday items. A user of the Pocket Beach Towel will be able to fit a lawn chair into the created slot of the towel as to avoid it sliding down, and place items such as cellular phones, shirts, sunglasses, etc. into the pockets on the back of the towel.

Abstract: A vehicle safety seat with mechanical shock indication includes a safety seat body defining a seat region for a child during vehicle travel and a mechanical shock indicator assembly mounted to the safety seat body for indicating that the child vehicle safety seat has suffered a mechanical shock of a least a predetermined magnitude.

Abstract: The object of the invention to improve significantly the safety of a child sitting in a safety seat in a vehicle in case of a side impact will be solved by a child safety seat for a vehicle according to the invention comprising an outer shell with a seating area for a child and side wings located on both sides of the seating area, whereas at least one side wing comprises at least one side-impact-pusher-element.

Abstract: A seat cover is attachable to a seat section of a vehicle seat including a frame and an original cover, in the state of covering the original cover. The original cover is attached in the state where a hook-like original cover engaging tool including a pair of portions facing each other is hooked on an engageable portion of the frame. The seat cover includes a cover main body for covering the seat section, and a cover attaching tool provided along an end of the cover main body. The cover attaching tool includes a pair of cover seat portions facing each other and is hook-like. The cover attaching tool is allowed to be hooked on the original cover engaging tool hooked on the engageable portion.

Abstract: A child safety seat includes a seat back and a head rest disposed on the seat back. When a child sits on the child safety seat, his back is against the seat back, and his head is against the head rest. The child safety seat also includes two sliding slot structures, formed on the seat back, and two sliding rods. The two sliding rod are connected to two opposite sides of the head rest corresponding to the two sliding slot structures and slidably disposed in the corresponding sliding slot structures. When the sliding rod is at a first restraining position of the sliding slot structure and the child safety seat shakes because of an impact, the head rest moves relative to the seat back, so that the sliding rod slides to a second restraining position sliding slot structure, which reduces possible harm to the head of the child.

Abstract: An improved office chair, having an inflatable seat bladder and seat-support coils, and an inflatable lumbar back bladder wherein each bladder is independently inflatable and independently deflatable to the user's desired firmness, through a dedicated inflation mechanism for each bladder, comprising a battery-powered air pump and a check valve, and a dedicated deflation mechanism for each bladder, comprising a battery-powered solenoid valve, wherein each inflation mechanism and deflation mechanism is battery-powered through an onboard battery pack and controlled by the user's manipulation of switches in an onboard control panel.

Abstract: A system comprises a vehicle seating system including a seat and at least one powered seat adjustment actuator for altering the seating position formed by the seat. Additionally, the system includes a controller for receiving at least one signal based on at least one vehicle/user event. For reducing fatigue, the controller controls slow seat movement while the vehicle is moving, and changes slow movement between first and second slow movements based on the vehicle/user event(s).

Abstract: A therapeutic leg elevation device and an associated treatment method are disclosed. The device includes a first inclined surface for supporting a patient's thigh and that tilts the thigh at an angle above horizontal that is also less than an angle that can kink the femoral vein. A second inclined surface supports the patient's lower leg and also tilts the lower leg above the horizontal at an angle sufficient to permit gravity to augment blood flow. The first and second surfaces define an angle that positions the knee and lower leg at an angle that relaxes the hamstring and gastrocnemius muscle for comfort and prevents the popliteal vein from being compressed by the tibia. The second inclined surface has a limited length that permits a patient's feet to extend over the end of the second surface to prevent pressure on the heel. The device includes an inflatable interior component and a cushion layer covering the inflatable interior component.

Abstract: A lower leg rest device includes an engaging member and a support member having a length adjusting mechanism. An end of the support member is pivotally connected to the frame of the baby carriage at a pivot point. The engaging member is disposed on another end of the support member. The support member is used for supporting a child safety seat. The length adjusting mechanism is used for adjusting a length between the engaging member and the pivot point. When the lower leg rest device pivots to a position below the frame body, the length of the support member can be shortened so as to support legs of a baby seated in the baby carriage. When the lower leg rest device pivots to a position above the frame body, the support member can be lengthened so that the engaging member can be engaged with and support the child safety seat.

Abstract: Exemplary embodiments of the present invention would provide web-strapping for upholstery of furniture, methods of providing web-strapping for upholstery of furniture, web-strapped furniture, and methods of web-strapping furniture. One exemplary embodiment of the present invention would provide an exemplary strap assembly of material for furniture upholstery comprising at least one fastener fastened into each end of the strap such that a tail end of each fastener is secured from extraction from the strap. In one exemplary strap assembly embodiment, fasteners would be fastened in each corner of each end of a strap so that a tail end of each fastener would be secured from extraction from the strap. Other exemplary embodiments would provide an exemplary article of furniture and methods of making an exemplary article of furniture, comprising said strap assemblies installed to span a space between opposing chair rails.

Abstract: A tongue for a seat belt device is provided with a tongue main body that is insertable within a buckle, and a train-around portion through which an intermediate portion of a webbing is inserted. The train-around portion includes a first shaft is fixedly mounted between a pair of opposing walls, and a second shaft that is movably mounted between the walls. The webbing is slidably bent 180° around the first fixed shaft. When tension of the webbing exceeds a predetermined magnitude or greater, the movable second shaft engages the webbing and increases a bending angle of the webbing around the first shaft to an angle greater than 180° thereby increasing frictional resistance between the webbing and the train-around portion.

Abstract: There are provided an axle housing, a rotational shaft provided to axially extend in a spindle of the axle housing, a wheel mounting cylinder which is mounted on an outer peripheral side of the spindle through wheel support bearings and to which wheels are mounted, and a planetary gear reduction mechanism for decelerating rotation of the rotational shaft, which is transmitted to the wheel mounting cylinder. A carrier forming a part of the planetary gear reduction mechanism is mounted in a non-rotating state on an open end side of the spindle. A cylindrical coupling member is provided between the spindle and the carrier, and provided with an axial one side outer periphery splined-coupled to an open end inner peripheral side of the spindle and an axial other side outer periphery spline-coupled to an inner peripheral side of the carrier.

Abstract: A bicycle wheel rim 1 includes a wall with two opposite radially outwardly extending annular sidewall parts 2a, b in which a plurality of slit shaped spoke mounting apertures are provided. Spokes 10 are provided which include a shaft 11 with a thickened head 12. Each slit extends both in a sideward and radial outward direction and includes a first slit part 15 and a second slit part 16, where the first slit part has cross sectional dimensions lying between the cross sectional dimensions of the shaft and the head, and the second slit part has cross sectional dimensions larger than the cross sectional dimensions of the head. The second slit part lies further radially outward than the first slit part, and the slit parts are both open in the direction of the central axis of the rim and in the direction of at least one of the sidewall parts of the rim.

Abstract: A brake assembly adapted to be mounted to the flange of an axle housing. The brake assembly includes a stationary plate having a plurality of threaded holes therein. The brake assembly also includes a mounting sleeve positioned adjacent to the axle housing flange opposite the stationary plate. A plurality of holes are provided through the mounting sleeve and are aligned with the threaded holes in the stationary plate. A bolt is received through each of the holes in the mounting sleeve and the aligned holes in the axle housing flange and the threaded holes in the stationary plate to secure the brake to the axle housing. The mounting sleeve may be provided in two or more separate pieces in order to facilitate installation.

Abstract: A hub unit includes a rolling bearing and a flange integrally formed with a hub wheel that may function as a bearing ring member of the rolling bearing. The flange has a plurality of thick portions formed at predetermined intervals in the circumferential direction of the flange. Each thick portion has a bolt hole that extends through the corresponding thick portion in the thickness direction of the thick portion. Work holes through which a working tool is able to be inserted and which extend through the flange in the thickness direction of the flange are formed between the bolt holes adjacent to each other in the circumferential direction. A circumferential width of each thick portion that has the bolt hole and that is adjacent to the work holes in the circumferential direction is set to such a width dimension that the thick portion does not interfere, with the adjacent work holes.

Abstract: The invention relates to a method in which the driving stability of a vehicle is controlled, wherein a yaw rate difference is influenced by an additional yaw moment which is generated at least partially by building up braking torque independently of the driver at one or more wheels. According to the invention, the braking torque which influences the additional yaw moment is variably apportioned between the front axle and the rear axle of the vehicle in an oversteering situation.

Abstract: A brake system and method for operating same for a vehicle having a master brake cylinder, a brake medium reservoir, a first wheel brake cylinder, into which a first brake medium volume is displaceable from the master cylinder, a second wheel brake cylinder, into which a second brake medium volume is displaceable from the master cylinder, and a pump, which is hydraulically connected to the brake medium reservoir, the first wheel brake cylinder being hydraulically connected to the pump via a first non-return valve and the second wheel brake cylinder being hydraulically connected to the pump via a second non-return valve so that the pump can pump a third brake medium volume from the brake medium reservoir through the first non-return valve into the first wheel brake cylinder and a fourth brake medium volume from the brake medium reservoir through the second non-return valve into the second wheel brake cylinder.

Abstract: A brake control apparatus for a vehicle provided with a regenerative braking device, the brake control apparatus includes: a first brake circuit connecting a master cylinder configured to generate a brake hydraulic pressure by a brake operation of a driver, and a wheel cylinder to which the brake hydraulic pressure is applied; a booster configured to increase a pressure of a brake fluid within the master cylinder, and to transmit the pressurized brake fluid to the wheel cylinder through a second brake circuit connected with the first brake circuit; a third brake circuit bifurcated from the first brake circuit, and connected with the booster; a reservoir provided on the third brake circuit; and a recirculating device configured to recirculate the brake fluid stored in the reservoir, to the first brake circuit's side.

Abstract: An attenuator assembly is located in an attenuator chamber of a housing in a vehicle braking system and includes an orifice defining a fluid dampening flow path. The orifice has an outlet opening. A biasing member defines a closing member of the orifice. The size of the outlet opening changes continuously between a first open position and a second open position.

Abstract: An attenuator assembly for use in a vehicle braking system includes a rigid tube disposed within a bore of a hydraulic control unit (HCU) for reduced HCU package size. An attenuator is disposed in the rigid tube and includes a metallic biasing member.

Abstract: Systems and methods disclosed herein may be useful emergency braking systems for use in, for example, an aircraft. A system is disclosed that allows emergency braking without the need for a manually operated emergency brake. For example, a system is provided comprising a potentiometer in mechanical communication with a brake pedal, a first electronic switch in electrical communication with the potentiometer, a second electronic switch indicating a displacement of the brake pedal, wherein a brake control valve opens in response to the first electronic switch, and wherein a shutoff valve opens in response to the second electronic switch.

Abstract: A load control device controls a load of a vehicle based on a signal inputted from a manipulation part manipulated by a user. The load control device includes a first command part that issues a first command to supply electric power to the load based on the signal from the manipulation part, a monitor that monitors existence or non-existence of an abnormality of the first command part, and outputs a reset signal in order to reset a state of the first command part when the abnormality of the first command part is detected, a second command part that issues a second command to supply the electric power to the load when the reset signal is inputted from the monitor, and an electric-power supply controller that controls the supply of the electric power to the load based on the first command or the second command.

Abstract: A busbar is provided for a power distributor in vehicles. The busbar comprises at least one fastening region for fuses. The fastening region is separated by at least one slot which cuts through the busbar from the remaining part of the busbar to such an extent that the fastening region is only connected to the remaining part of the busbar by a web. The cross section of the web is smaller compared to the adjacent fastening region and the adjacent remaining part of the busbar.

Abstract: An apparatus including an alternator that is drivable by an engine for producing a first AC electric current, a rectifier in electrical communication with the alternator for producing a DC electric current, an inverter in electrical communication with the rectifier for producing a second AC electric current where the second AC electric current having an acceptable frequency and/or voltage, and the inverter in electrical communication with one or more electric loads responsive to the second AC electric current, and an energy storage device that is able to electrically couple to the alternator, rectifier, and/or inverter.

Abstract: The present invention relates to a replaceable battery module for an electrically driven vehicle, with at least one bracket that can be detachably arranged on a bearing structure of the motor vehicle, and carries at least one battery unit.

Abstract: To operate a safety load in a vehicle electric system and compensate for power surges, a vehicle electric system has a vehicle battery, an electric load, an energy storage device in form of double-layer capacitor, and a switching assembly. In a first switching state, the system can compensate for a power surge by connecting the double-layer capacitor in series with the vehicle battery with opposite polarity. The vehicle electric system also has an additional load, for example for providing functionality that is relevant for the safety of the vehicle occupants. The additional load can be supplied with a voltage present at the vehicle battery and/or with a voltage present at the electric load. A DC-to-DC converter taps an electric voltage present at the energy store and converts the tapped voltage into a supply voltage, with which the additional load can be redundantly supplied.

Abstract: The SOC of a power storage device provided in an electrically powered vehicle is controlled not to fall out of a SOC control range. When a SOC estimate value reaches a control lower limit value during vehicle traveling, a power generating structure provided in the vehicle starts to charge the power storage device. In the case of low temperature and/or deterioration of the power storage device, i.e., in the case where decrease of performance of the power storage device is concerned, the control lower limit value is increased as compared with that in a normal state. As a result, decrease of driveability and decrease of startability of an engine in the hybrid vehicle, both otherwise caused by insufficient output electric power from the power storage device, can be avoided.

Abstract: An inverter system (1) for a photovoltaic solar installation for generating an AC voltage from a DC voltage of a solar generator (2) is provided which includes an additional energy storage device (38) which is arranged in an energy transfer path that can be activated when needed. A control arrangement (31, 39) for monitoring and controlling the operation of the inverter system (1) is designed to detect short-term energy peaks of the insolation at the solar generator and, upon a presence of insolation peaks, to activate the energy transfer path (36) in order to cause a transfer of energy from the solar generator (2) to the energy storage device (38).

Abstract: A power generation/distribution system includes a RAM air turbine (RAT) generator and an emergency integrated control center (EICC) that selectively applies either primary power provided by a primary power source or emergency power developed by the RAT generator to an alternating current essential bus (AC ESS bus) for distribution to one or more essential loads. The EICC monitors the primary power and in response to a loss of primary power selectively disables the supply of power from the AC ESS bus to the essential loads and manages subsequent loading of the RAT generator by the essential loads.

Abstract: A utility distribution control system and method for performing distribution control of energy within a utility service network including an energy distribution network in communication with a plurality of energy resources. The energy distribution network includes a plurality of energy storage and generation devices which receive energy from at least one of the energy resources of the plurality of resources and distribute energy, and a controller which controls the plurality of energy storage and generation devices, to distribute energy.

Abstract: A system includes a plurality of semiconductor devices; an electronic circuit operatively associated with the semiconductor devices; a thermoelectric device structured to provide power to power the electronic circuit from heat generated by the semiconductor devices; a power supply structured to provide power to power the electronic circuit; a number of sensors structured to sense at least one characteristic of the semiconductor devices or the thermoelectric device; and a processor cooperating with the number of sensors to provide power to power the electronic circuit from at least one of the thermoelectric device and the power supply.

Abstract: An example hierarchical balancing system is described that performs balancing amongst power packs comprising an arrangement of power cells, while the power packs separately perform cell-level balancing. A power pack impedance balancer may be implemented for power pack balancing using changes in impedance. An example apparatus may include a rail capacitor that is switchably connected to a first capacitor and switchably connected to a second capacitor. The first capacitor may also be switchably connected to a first power pack and the second capacitor may also switchably connected to a second power pack. Via controllable switches, the first and second capacitors may shuttle energy between the power packs through the rail capacitor. Additional and related methods and apparatuses are also provided.

Abstract: An autarkic field device or an autarkic radio adapter for a field device, of automation technology fed with limited energy via an energy supply unit associated, or associable, with the field device or the radio adapter. Between the energy supply unit and an internal voltage source, whose voltage exceeds, or at times can exceed, the voltage of the energy supply unit, a barrier of at least one diode group having at least two diodes connected in parallel is arranged, which blocks flow of electrical current from the internal voltage source to the energy supply unit or to the connection terminals of the field device or of the radio adapter for the energy supply unit.

Abstract: The present invention relates to a multiple-input driving device, which receives at least one electrical power that shows a voltage. The multiple-input driving device uses interaction among a voltage regulation module, a control module, and a conversion module to simultaneously the functions of voltage regulation, input through pushbutton switch, driving a light-emitting diode with regulated power or driving the light-emitting diode with input of pulse width modulated power.

Abstract: A smooth switching device and method for double power supplies. The devices includes a main/backup power supply switching unit (1), a relay control unit (3), a charge management unit (2), a main power supply switching auxiliary unit (4) and a backup power supply switching auxiliary unit (5). The device and the method enable the main power supply (200) and the backup power supply (300) which supply power for electric equipment (100) to be switched smoothly, so that it is not easy for the electric equipment (100) to be disconnected with the power supplies and the fluctuation of a load voltage is small. Moreover, the device doesn't need a bulk capacitor used for auxiliary switching and doesn't need to be used together with a radiator.

Abstract: The power supply circuit for powering equipment via a current-limited power supply bus at a nominal voltage (Vb) of the equipment includes an auxiliary power supply circuit comprising an energy storage member and a trigger member for triggering auxiliary power supply to the equipment from the storage member via a voltage-reducing converter for reducing the auxiliary voltage to the nominal voltage.

Abstract: A power interface enables a low-power device to be powered from an alternating current (AC) wall receptacle or light socket with automatic backup battery charging. The power interface of an embodiment comprises a transformer module that receives an input signal. The device includes a battery module coupled to the transformer module, and the battery module includes battery charging circuitry coupled to a battery. The device comprises an output controller coupled to the transformer module and the battery module. The output controller includes detector circuitry that detects a state of the input signal. The output controller automatically controls coupling of one of a transformer module output and a battery module output to a device output according to the state of the input signal.

Abstract: The battery pack that recognizes operation voltage of a corresponding device according to a unique resistance of the connected device and sensed through a third external terminal of the battery pack, the battery pack having a plurality of cells that can be coupled in series or in parallel to be suitable for an operation voltage of the corresponding device. The battery pack can be sold to a consumer to enable the consumer to power a variety of different electrical appliances. Alternatively, the battery pack can be incorporated into a chassis of an electrical apparatus so that the battery pack can be sold to many different manufacturers of electrical appliances.

Abstract: Reconfigurable power systems, converters and plants are disclosed, along with operating methods therefor. Reconfigurable power systems may include a DC power source, an electrical energy storage device, an AC power grid connection, a first power converter, and a second power converter. The first power converter may be configured to selectively couple two or more of the DC power source, the electrical energy storage device, and the AC power grid connection. The second power converter may be configured to selectively couple the electrical energy storage device to at least one of the DC power source and the first power converter. The second power converter may be configured as a DC-DC converter.

Abstract: The invention relates to a two-input uninterruptible voltage converting device and a method thereof. The device comprises a first conversion circuit, a second conversion circuit, an energy storage unit, a fly-wheel switch tube and a control unit. The method comprises the following steps of: converting a PWM signal outputted by a pulse width modulator into first, second, third and fourth PWM signals in phase via a pulse transformer; driving the first conversion circuit and the second conversion circuit respectively to operate synchronously; converting a high voltage DC (Direct Current) and a low voltage DC into two pulse voltages in phase to adaptively perform mutual energy compensation via an intersection; and supplying a load with an uninterruptible stable voltage via the back-end energy storage unit and free-wheel circuit. The two-input uninterruptible voltage converting device has the advantages of high circuit conversion efficiency, high reliability and low power consumption.

Abstract: An adapter is provided with a connecter portion configured to be detachably attached to the main body of the electric power tool and at least one battery receiving portion configured to be detachably attached to the battery pack. The battery pack attached to the battery receiving portion is electrically coupled with the main body of the power tool attached to the connecter portion via a power supply circuit of the adapter. The adapter is provided with a measuring portion configured to measure an index corresponding to a charged level of the battery pack and a signal receiving portion configured to receive an alarm signal outputted from the battery pack, and is configured to stop or restrict power supply to the main body of the electric power tool based upon a measurement by the measuring portion and the alarm signal that is received.

Abstract: In an embodiment, a photovoltaic system includes multiple photovoltaic modules and a module-to-module bus. Each photovoltaic module defines a first end and a second end opposite the first end. Each photovoltaic module includes multiple photovoltaic cells and multiple converters. Energy generated by each photovoltaic cell has multiple paths through the photovoltaic cells to the second end. The converters are electrically coupled to the photovoltaic cells at the second end such that energy generated by each photovoltaic cell is receivable at any of the converters. The module-to-module bus is electrically coupled to each of the photovoltaic modules. The module-to-module bus has an output. Energy generated by each photovoltaic module is receivable at the output independent of any other of the photovoltaic modules.

Abstract: An area electric power system includes a number of direct current power sources, and a number of inverters operatively associated with the number of direct current power sources. Each of the number of inverters is structured to provide real power and controlled reactive power injection to detect islanding. An output is powered by the number of inverters. A number of electrical switching apparatus are structured to electrically connect the number of inverters to and electrically disconnect the number of inverters from a utility grid. A number of devices are structured to detect islanding with respect to the utility grid responsive to a number of changes of alternating current frequency or voltage of the output.

Abstract: The disclosed embodiments and principles provide a way to integrate high-efficiency, low-profile power electronics with localized maximum power point tracking (MPPT) into a rooftop shingle-based photovoltaic power system. DC-DC power converters having a height, or profile, as low as ¼ inch for a 200 W power output, are able to be included in a building-integrated photovoltaic (BIPV) roof shingle. The DC-DC power converters increase the relatively low voltage produced by two rows of series-connected photovoltaic shingles, each including photovoltaic cells, to a high voltage used by a DC-AC inverter. For example, DC-DC power converter increases the voltage produced by two rows of series-connected photovoltaic shingles from several tens of volts to approximately 400 volts. Thus, the DC-DC power converters provide a large voltage step-up using a low profile and with very high efficiency.

Abstract: Embodiments are directed to detecting and identifying a type of a wireless power device in a wireless power transfer field. According to one aspect, systems and methods are disclosed which describe limiting power transfer to non-compliant devices and detection of undesired power absorbers, such as metal objects, in a wireless power system. A method may include detecting one or more non-compliant devices and/or undesired wireless power absorbers positioned within a charging region of a wireless power transmitter. The method may further include limiting an amount of power transmitted by a transmitter in response to the detection, or reducing the amount of power received by the non-compliant device.

Abstract: A switching system configured to control a connection between a power supply and an inductive power outlet where the inductive power outlet includes at least one primary inductor configured to inductively couple with a secondary inductor associated with an inductive power receiver includes a circuit breaker configured to disconnect the inductive power outlet from the power supply, and a trigger switch configured to disable the circuit breaker when the inductive power receiver is brought into proximity with the inductive power outlet.

Abstract: This specification provides a wireless power system capable of changing a resonant frequency and a resonant frequency changing method thereof. To this end, a wireless power receiver according to one exemplary embodiment includes a power receiving unit having a receiving side resonant circuit provided with at least one inductor and at least one capacitor, and configured to receive a wireless power signal, the wireless power signal being generated based on a resonance phenomenon between the receiving side resonant circuit and a transmitting side resonant circuit of a wireless power transmitter, and a power reception control unit configured to control the power receiving unit to change a connection between the at least one inductor and the at least one capacitor so as to change a resonant frequency corresponding to the wireless power signal.