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A system for and method of charging or maintaining a charge of a battery of a vehicle is disclosed. The system utilizes a light-transforming cell that can transform light energy to current. The cell may be supported such that the cell is exposed to light energy. Current produced by the cell is commu

A system for and method of charging or maintaining a charge of a battery of a vehicle is disclosed. The system utilizes a light-transforming cell that can transform light energy to current. The cell may be supported such that the cell is exposed to light energy. Current produced by the cell is communicated with the battery through electrical connectors, which may have a switch. This invention may decrease occasions when a vehicle operator faces a weakened or dead battery in a vehicle because the invention serves to maintain the charge of the vehicle's battery when the vehicle is not in use.

대표청구항 ▼

A system for and method of charging or maintaining a charge of a battery of a vehicle is disclosed. The system utilizes a light-transforming cell that can transform light energy to current. The cell may be supported such that the cell is exposed to light energy. Current produced by the cell is commu

A system for and method of charging or maintaining a charge of a battery of a vehicle is disclosed. The system utilizes a light-transforming cell that can transform light energy to current. The cell may be supported such that the cell is exposed to light energy. Current produced by the cell is communicated with the battery through electrical connectors, which may have a switch. This invention may decrease occasions when a vehicle operator faces a weakened or dead battery in a vehicle because the invention serves to maintain the charge of the vehicle's battery when the vehicle is not in use. rminal pins extending from the coils of said stator; and connecting bus bars held by an inner case installed in said circuit protection case, each connecting bus bar having on end welded to a given part of said control section of said drive circuit and the other end welded to corresponding one of said terminal pins. 2. A brushless motor as claimed in claim 1, in which said circuit substrate is formed with openings through which said terminal pins pass. 3. A brushless motor as claimed in claim 2, in which said drive circuit further comprises a filter section which filters out surges from a supplied electric power, and in which said filter section has wiring bus bars which are held by said inner case. 4. A brushless motor as claimed in claim 3, which said wiring bus bars are respectively provided with connector terminals, each connector terminal being connected to the corresponding wiring bus bar via welding. 5. A brushless motor as claimed in claim 4, in which the welded portions between the wiring bus bars and the connector terminals are embedded in said inner case. fins extend outward from the sleeve toward the outer housing to define a plurality of axial flow channels. A first portion of the flow channels interconnects the inlet reservoir to the cross over reservoir and a second portion of the flow channels interconnects the cross over reservoir to the outlet reservoir. nator. 14. A surface acoustic wave device according to claim 10, wherein a plurality of the interdigital transducers are disposed on the quartz substrate; each of the plurality of interdigital transducers constitutes a one-port surface acoustic wave resonator; and the plurality of the interdigital transducers are connected to constitute a ladder-type filter on the quartz substrate. 15. A surface acoustic wave device according to claim 10, wherein a plurality of the interdigital transducers are disposed on the quartz substrate; each of the plurality of interdigital transducers constitutes a one-port surface acoustic wave resonator; and the plurality of the interdigital transducers are connected to constitute a lattice-type filter on the quartz substrate. 16. A communication device comprising a surface acoustic wave device according to claim 10. 17. A surface acoustic wave device using a Shear Horizontal type surface acoustic wave, comprising: a quartz substrate; and at least one interdigital transducer disposed on the quartz substrate and made from tungsten; wherein a normalized film thickness h/λ of the at least one interdigital transducer is within a range of about 0.6d+0.85 to about 0.6d+1.30, where "d" is the metallization ratio of the interdigital transducer, "λ" is the wavelength of the surface acoustic wave, and "h" is the film thickness of the electrodes of the at least one interdigital transducer. 18. A surface acoustic wave device according to claim 17, wherein the normalized film thickness h/λ is within a range of about 0.6d+1.00 to about 0.6d+1.23. 19. A surface acoustic wave device according to claim 17, further comprising a plurality of the interdigital transducers arranged to constitute a longitudinally coupled resonator filter. 20. A surface acoustic wave device according to claim 19, further comprising a plurality of the longitudinally coupled resonator filters, which are connected in a cascade arrangement in at least two stages. 21. A surface acoustic wave device according to claim 17, wherein the at least one interdigital transducer is arranged on the quartz substrate to constitute a one-port surface acoustic wave resonator. 22. A surface acoustic wave device according to claim 17, wherein a plurality of the interdigital transducers are disposed on the quartz substrate; each of the plurality of interdigital transducers constitutes a one-port surface acoustic wave resonator; and the plurality of the interdigital transducers are connected to constitute a ladder-type filter on the quartz substrate. 23. A surface acoustic wave device according to claim 17, wherein a plurality of the interdigital transducers are disposed on the quartz substrate; each of the plurality of interdigital transducers constitutes a one-port surface acoustic wave resonator; and the plurality of the interdigital transducers are connected to constitute a lattice-type filter on the quartz substrate. 24. A communication device comprising a surface acoustic wave device according to claim 17.