Abstract: An inductor induced light emitting bottle comprises a seat having a transformer therein; the transformer being connected to a power source for voltage reduction. A transparent bottle serves for receiving water. A first coil is made of copper wire. The first coil encloses a periphery of the transparent bottle. One end of the first coil passes through the though hole to be connected to a lower voltage output end of the transformer. A light emitting unit has a hollow transparent casing, a second coil, a LED lamp, a sealing cover. A diameter of the second coil is smaller than that of the first coil. The LED lamp is connected to two ends of the second coil. The light emitting unit is disposed in the transparent bottle so that the second coil of the light emitting unit is disposed in the first coil as a transformer when they are conducted.

Abstract: An inductor induced light emitting bottle comprises a seat having a transformer therein; the transformer being connected to a power source for voltage reduction. A transparent bottle serves for receiving water. A first coil is made of copper wire. The first coil encloses a periphery of the transparent bottle. One end of the first coil passes through the though hole to be connected to a lower voltage output end of the transformer. A light emitting unit has a hollow transparent casing, a second coil, a LED lamp, a sealing cover. A diameter of the second coil is smaller than that of the first coil. The LED lamp is connected to two ends of the second coil. The light emitting unit is disposed in the transparent bottle so that the second coil of the light emitting unit is disposed in the first coil as a transformer when they are conducted.

Abstract: A method and apparatus for transformer bandwidth enhancement is disclosed. In one embodiment, a transformer is provided for use in a high frequency communication environment. In one configuration, the transformer is configured with one or more compensation networks to improve high frequency operation and to reduce insertion loss at all frequencies. The compensation networks may be designed, in combination with a transformer, to create an equivalent all-pass symmetric lattice network having a frequency response in the desired range. In one embodiment, the compensation networks comprise a capacitance creating device which, when cross-connected to the transformer, increases transformer bandwidth.

Abstract: The present circuit serves for the transmission of information signals over the general electricity supply mains. It has a transducer (13) for the galvanic separation of the mains voltage. The mains side winding (L1) of the transducer is connected in series with a capacitor (C1) in order to separate the mains frequency from the frequency of the information signal. It is loosely coupled with the windings (L2, L3) of the transducer, being galvanically separated from the mains with a coupling degree between 0.8 and 0.98, whereby the transducer obtains a desired mains side stray inductance. The circuit is dimensioned so that it has a low impedance at the mains, when it is sending, and a high impedance, when it is receiving, that it provides a high level of the reception signal at the application side terminal and that it has a broadband balanced frequency response, which is largely independent of fluctuations of the mains impedance within a broad frequency range.

Abstract: A low leakage inductance, versatile RF transformer with multiple input/output voltage ratios. The transformer has many applications. For example, and not by way of limitation, the transformer can be used with switching power supplies, RF induction power supplies, and RF plasma power supplies. The efficiency of the transformer is on the order of 99% to 99.7%. These efficiencies have been measured at power levels of 3 kilowatts (KW) to 10 KW.

Abstract: A fly back transformer comprises a horizontal output section; a low-voltage bobbin forming a first coil; a high-voltage bobbin forming a second coil having high-voltage coil layers and high-voltage rectifier diodes connected in series between upper terminal pins and lower terminal pins; a focusing pack having a PCB being printed with an adjustable resistor, and a focus input terminal; a bleeder resistor detachably fixed in position to the high-voltage bobbin and electrically connected with a high-voltage terminal of the high-voltage bobbin and the focus input terminal; and a focus-drawing wire disposed between the first and the last of the high-voltage coil layers, and having one end connected to draw a voltage generated between the high-voltage terminal and a low-voltage terminal of the high-voltage bobbin and the other end connected with the focus input terminal.

Abstract: A transformer for an inverter circuit, comprising: a core module having a first core portion and a second core portion; a first bobbin having a first coiled portion and a first hollow portion for receiving the first core portion; a second bobbin substantially disposed parallel to the first bobbin, the second bobbin having a second coiled portion and a second hollow portion for receiving the second core portion; primary coils wound around the first coiled portion; and secondary coils wound around the second coiled portion.

Abstract: A radio frequency transformer has the two lines which constitute it on at least four levels of a printed circuit. Two of the four levels correspond to each line. In one variant the lines are wrapped onto a cube. The levels corresponding to one line are interleaved with the levels corresponding to the other one. The transformer has two input ports, one of which is connected to ground, and two output ports. This reduces the area and therefore the cost of the circuit or provides the facility to mount other components and thus other functions.

Abstract: The objectives of the present invention is to provide smaller, lighter and less expensive structure in a starting device for discharge lamp for car use so as to prevent breakage due to vibrations etc. The device having the following arrangement realizes the above-mentioned objective. A starting device for a discharge lamp comprises a socket for mounting the discharge lamp and starting members such as a starting transformer etc. where the starting transformer comprises a bobbin having a core-less structure and a primary coil and a secondary coil wound around the bobbin.

Abstract: A cooling fin is fixed to a frame and mounts a plurality of rectifying elements. The cooling fin is configured into a circular ring shape separated at a cutout section. A brush holder, a connector casing and an IC regulator are disposed in this cutout section. A circumferential gap of the cutout section is smaller than three times a circumferential width of the brush container.

Abstract: An improved magnetic structure suitable for electronic applications is disclosed. The magnetic structure may be formed on or within a substrate such as a printed circuit board by forming a layer of magnetic material, pattering the layer of magnetic material, and etching the layer to form the magnetic structure. Various insulating layers and/or conductive layers may then be formed over the magnetic structures as part of the substrate. Inductors suitable for use in power supplies may be formed using the magnetic structures of the present invention.

Abstract: An apparatus using a double focusing type fly-back transformer is disclosed. A top bleeder type is adopted in drawing the focus voltage of the fly-back transformer instead of the conventional neutral point type, and the double patterns of the focus resistors are separated from each other instead of the conventional common connections to the ground on the substrate FUB of the focus unit part. Further, one or more of the separately installed focus resistor patterns is used as a feedback line together with the bleeder resistor, thereby drastically reducing the size of the bleeder resistor. The anode voltage output terminal is connected to the initial voltage setting part 12 and the high voltage stabilizing circuit part 11, so that one or more of the patterned resistors of the focus unit part together with the bleeder resistor BR2 can share in serving as feedback lines.

Abstract: A partial discharge fault in a transformer tank is determined by sensing supersonic vibrations at a multiplicity of points about the tanks and establishing a threshold amplitude and a frequency range for pulse vibrations to be evaluated. The signals from the multiplicity of points are multiplexed, synchronized and localized and then processed in a series of steps. After the existence of triggering pulse vibrations exceeding an established threshold amplitude and within an established frequency and range is initially determined, a wavelet transform is conducted on the multiplexed signals two at a time with one signal being the signal from the first sensor found to provide a signal above the threshold amplitude. The wavelet transform provides both frequency and time domain.

Abstract: In the vehicle-lamp lighting-on device, a body case has a connection opening formed in the front end thereof. A lighting-on transformer is disposed within the body case. The transformer includes a core housing with an iron core and a coil bobbin with a secondary coil wound thereon. The connection opening of the body case is shielded at the front end of the lighting-on transformer. A socket for receiving a vehicle discharge lamp includes a high-voltage terminal and low-voltage terminals. When the socket is inserted into the connection opening of the body case, the high-voltage terminal of the socket is connected to the high-voltage side terminal of the lighting-on transformer, and the low-voltage terminals are connected to the low-voltage side terminals. The connection opening of the body case is shielded by the front surface (made of insulating material) of the lighting-on transformer.

Abstract: A method and apparatus to amplify the magnetic field in an electromagnetic circuit is provided. Amplification factors of several orders of magnitude may be obtained. The system is applicable to a number of different systems, including melt levitation and electromagnetic pumping and propulsion. One embodiment of the invention uses a non-conducting permeable core wound around a dielectric core. An alternating voltage source is connected to a solenoid which is wound around a section of the permeable core. The permeable core has a gap within which a flux concentrating cold crucible is provided. Melt levitation processing takes place within the cold crucible.

Abstract: An improved uninterruptible power supply system includes a converter for converting alternating current voltage into a direct current voltage; an inverter for modulating the direct current voltage outputted from a battery or the converter; a first switch for switching the voltage modulated at the inverter; a second switch for switching the alternating voltage inputted via a bypass line; an integrated transformer for increasing or decreasing the output voltages of the first and the second switches, the transformer also acting as a reactor for shaping the output voltage of the first switch; and a condenser for shaping the waveforms of the output voltage of the integrated transformer.

Abstract: A switching power supply embodiment of the present invention includes a plastic leaded chip carrier (PLCC) that has two rectangular holes joined by a channel on the bottom surface that allow the PLCC to be surface mounted on a printed circuit board over a ferrite U-core section. A ferrite I-core section caps the ends of the U-core section above the top surface of the PLCC. A wire frame within the PLCC provides for several individual parallel conductor segments that pass between the two holes to rows of surface mount pins on opposite edges of the PLCC. Traces on the printed circuit board complete the connection of these conductor segments to form a primary winding of a transformer. A secondary winding is similarly constructed using pins on another edge of the PLCC.

Abstract: A winding configuration for a transformer equipped with a load tap changer which maintains an impedance balance when the transformer is connected in parallel with another transformer in the field. The winding configuration, from the core outward, consists of a first compensating winding, a low voltage (LV) winding, a load tap changer (LTC) winding, a high voltage (HV) winding, and a second compensating winding. If the impedance of the transformer has to be lowered to match the impedance of the existing unit in the field, the second compensating winding is coupled in series with the LV winding. If the impedance of the transformer has to be increased to match the impedance of the existing unit in the field, the first compensating winding is coupled in series with the LV winding.

Abstract: A high-voltage transformer, for an X-ray apparatus includes a high-voltage winding (4) which consists of at least one coil (5) which is supported by an insulating member (6). Heat dissipation from the coil is improved in that the coil is wound so as to be self-supporting and have a stable shape without requiring the use of supporting members and/or intermediate insulating elements, a small part of its surface being connected to the insulating member so that the greatest part of its surface is situated a distance from the walls of the insulating member.

Abstract: An electrical circuit for inductance conductors, transformers and motors is provided wherein two coils of electrically conductive wire are coiled about a bar of magnetizable material such that they are disposed in mirror image symmetrical relation with each other. A tap is connected to one end of each coil to conduct an electrical current thereto to magnetize the bar. A second tap is connected to the other ends of each coil to conduct an electrical current therefrom.

Abstract: A transformer includes a core upon which a plurality of electrical conductors are concentrically disposed. The innermost and outermost electrical conductors are electrically connected to define a first winding, and the remaining electrical conductors are associated as one or more pairs of subwindings to define one or more additional windings. The association of each pair of subwindings is made by a suitable mechanism by which sections of the subwindings can be connected in electrical parallel, which paralleled sections are spaced equal total distances from the two portions of the first winding.

Abstract: An on-load tap-changing transformer in which its high-voltage winding is axially divided into parallel-connected halves, and an end conductor constituting part of the high-voltage winding is connected to the other terminal of each of the halves. A coarse tap coil connected by the end conductor to the other terminal of each of the halves of the high-voltage winding is disposed adjacent to the associated half, and a fine tap coil connected to the coarse tap coil through a coarse tap selector used for the change-over of the tap position to the taps of the coarse tap coil is disposed at a radial position spaced apart from the coarse tap coil. The end conductor is wound together with the conductors of the fine tap coil.

Abstract: The space heater of the invention features an improved motor-transformer package which may be easily applied to and removed from the heater, as an integrated unit. The design and mount of this package makes it extremely easy to service and insures that in the placement and operation thereof the total package will be surrounded with an insulating flow of air, the cooling effect of which guarantees a longer and more useful operating life for the included components and related apparatus. In the preferred embodiment illustrated, the motor and transformer elements of the package are connected, in a superposed relation, to opposite sides of a mounting plate the design of which essentially dictates the required placement of the package in a heater housing.