| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 121 | Electronic transformer/inductor devices and methods for making same | US10528050 | 2003-09-15 | US07277002B2 | 2007-10-02 | Philip A. Harding |
| The present invention relates to transformer inductor devices and to the methods of construction for inductive components such as inductors, chokes, and transformers. Plural via holes 12 are formed through a ferromagnetic substrate 10. Primary 32 and secondary 34 conductors are placed through common vias to form a plurality of cell transformers have a 1:1 turns ratio. Circuits connect these primary and secondary winding in parallel and serial combustion to provide a transformer having the desired turns ratio. | ||||||
| 122 | Method of making slotted core inductors and transformers | US11638146 | 2006-12-13 | US20070124916A1 | 2007-06-07 | Philip Harding |
| Slot core inductors and transformers and methods for manufacturing same including using large scale flex circuitry manufacturing methods and machinery for providing two mating halves of a transformer winding. One winding is inserted into the slot of a slot core and one winding is located proximate to the exterior wall of the slot core. These respective halves are joined together using solder pads or the like to form continues windings through the slot and around the slotted core. | ||||||
| 123 | Method of making slotted core inductors and transformers | US10950848 | 2004-09-27 | US07178220B2 | 2007-02-20 | Philip A. Harding |
| Methods for manufacturing slot core inductors and transformers includes using large scale flex circuitry manufacturing methods and machinery for providing two mating halves of a transformer winding. One winding is inserted into the slot of a slot core and one winding is located proximate to the exterior wall of the slot core. These respective halves are joined together using solder pads or the like to form continuous windings through the slot and around the slotted core. | ||||||
| 124 | Coaxial push pull transformers for power converters and like circuits | US10904371 | 2004-11-06 | US07119648B1 | 2006-10-10 | Edward Herbert |
| A coaxial push pull transformer is an improved matrix transformer. A number of magnetic cores each contain a pre-wired secondary circuit. The secondary windings are tubular and extend through the core, and the ends of the tubular secondary windings are terminated to make connections to a secondary circuit, such as rectifiers. The cores are placed end to end with the tubular secondary windings aligned and the primary winding is then threaded through all of the cores, so that it is coaxial with the secondary windings when installed, for very low leakage inductance. In the design of the coaxial push pull transformer, care is taken to arrange the terminations of the transformer such that each termination is paired with another termination having a counter-flowing current, to cancel part of the field caused by the flowing currents so as to reduce the overall inductance of the terminals and interconnections. To keep the interconnections to the associated circuitry as short as possible, the associated circuitry may be on circuit boards sandwiched between the transformer cores and directly connected to its terminations. | ||||||
| 125 | Factorized power architecture with point of load sine amplitude converters | US10802379 | 2004-03-17 | US06984965B2 | 2006-01-10 | Patrizio Vinciarelli |
| A Factorized Power Architecture (“FPA”) method and apparatus includes a front end power regulator (“PRM) which provides one or more controlled DC bus voltages which are distributed through the system and converted to the desired load voltages using one or more DC voltage transformation modules (“VTMs”) at the point of load. VTMs convert the DC bus voltage to the DC voltage required by the load using a fixed transformation ratio K=Vout/Vin and with a low output resistance. VTMs exhibit high power density, efficiency and, owing to their inherent simplicity and component utilization, reliability. VTMs may be paralleled and share power without dedicated protocol and control interfaces, supporting scalability and fault tolerance. Feedback may be provided from a feedback controller at the point of load to the front end or to upstream, on-board power regulator modules (“PRMs”) to achieve precise regulation. | ||||||
| 126 | Point of load sine amplitude converters and methods | US11181957 | 2005-07-14 | US20050286271A1 | 2005-12-29 | Patrizio Vinciarelli |
| In a preferred embodiment, a Sine Amplitude Converter (“SAC”) method and apparatus for VTMs converts a DC input voltage to a DC output voltage using a fixed transformation ratio at a frequency locked to a resonance. The SAC uses a resonant circuit including a transformer and complementary primary switches operating with balanced switching and a high power conversion duty cycle (e.g., above 94%) to perform high frequency, low noise, single stage power processing. The resonant circuit may have a low Q while enhancing conversion efficiency. Common-mode noise may be effectively reduced using symmetrical resonant power trains. In a preferred embodiment, a low profile (<0.16 inch high), low permeability “dog's bones” core structure, integrated with multi-layer PCB windings to complete SAC transformers, gives rise to a VTM manufacturing platform with greater than 400 Watts/cubic-inch power density and 95% efficiency, converting 100-150 Watts at the point of load. Capable of low manufacturing costs, this enabling technology supports flexible, molded packages for VTMs, which are characteristic of large IC's or “System In a Package” (“SIP”) devices, as distinct from the standard “bricks” characteristic of the DC-DC converters, the workhorses of vintage Distributed Power Architecture (“DPA”). | ||||||
| 127 | Electrical transformer | US10357595 | 2003-02-04 | US06952153B2 | 2005-10-04 | Boris Solomon Jacobson; Bruce William Chignola; Garo Dakessian; Dennis Robert Kling; Kevin Edward Martin; Eberhardt Praeger; William Edward Wesolowski |
| An electrical transformer having primary winding segments and secondary winding segments interconnected, respectively, by first and second multilevel printed circuit boards disposed in a pair of overlaying planes and additional segments disposed perpendicular to the overlaying planes. | ||||||
| 128 | Extended E matrix integrated magnetics (MIM) core | US10922067 | 2004-08-19 | US20050024179A1 | 2005-02-03 | Sriram Chandrasekaran; Vivek Mehrotra |
| A matrix integrated magnetics (MIM) “Extended E” core in which a plurality of outer legs are disposed on a base and separated along a first outer edge to define windows there between. A center leg is disposed on the top region of the base and separated from the outer legs to define a center window. The center leg is suitably positioned along a second outer edge opposite the first or between outer legs positioned along opposing outer edges. A plate is disposed on the outer legs opposite the base. | ||||||
| 129 | Low-loss transformer-coupled gate driver | US10813182 | 2004-03-29 | US20040183513A1 | 2004-09-23 | Patrizio Vinciarelli |
| Low-loss, common-source gate-control topologies may be used to efficiently drive a multiplicity of switches at frequencies greater than 1 MHz and over a range of duty cycles, including 50%. The control switches can be controlled at high speed using simple, directly-coupled drive circuitry. The gate control topology provides for ZVS of control switches and of primary and synchronous rectifier switches while also eliminating essentially all losses associated with the charging and discharging of gate capacitances of the primary and synchronous switches. The overall switching losses in the converter are reduced to the conduction losses in the channels of the switches enabling high operating frequencies to be achieved at high conversion efficiency. An inductive clamp circuit may be incorporated across a winding to provide a low-loss, common source gate drive topology for complementary switches having different duty cycles and an aggregate duty cycle less than 100%. Integrated dual drain FETs enable essentially simultaneous switching of clamp and switch circuitry in the gate drive circuitry. | ||||||
| 130 | Module for matrix transformers having a four turn secondary winding | US10025138 | 2001-12-19 | US06734778B2 | 2004-05-11 | Edward Herbert |
| Four metal foil windings can be bonded to the inside of a magnetic core, each in a 90 degree helix. Very simple direct and straight connections can connect the windings to the windings of another similar core in a flat transformer module with no crossovers or overlaps. The center-tap and output terminations are located similarly to the two turn version of the flat transformer module, but make a module with four turns. This may be used as a push-pull winding having two turns on each side of the center-tap, or it may be used as a four turn winding, as, for instance, with a full bridge rectifier in a power converter. | ||||||
| 131 | Slot core transformers | US10431667 | 2003-05-08 | US20030206088A1 | 2003-11-06 | Philip A. Harding |
| Slot core inductors and transformers and methods for manufacturing same including using large scale flex circuitry manufacturing methods and machinery for providing two mating halves of a transformer winding. One winding is inserted into the slot of a slot core and one winding is located proximate to the exterior wall of the slot core. These respective halves are joined together using solder pads or the like to form continues windings through the slot and around the slotted core. | ||||||
| 132 | Slot core transformers | US09863028 | 2001-05-21 | US20020014942A1 | 2002-02-07 | Philip A. Harding |
| Slot core inductors and transformers and methods for manufacturing same including using large scale flex circuitry manufacturing methods and machinery for providing two mating halves of a transformer winding. One winding is inserted into the slot of a slot core and one winding is located proximate to the exterior wall of the slot core. These respective halves are joined together using solder pads or the like to form continuous windings through the slot and around the slotted core. | ||||||
| 133 | Transformer and rectifier module with half-turn secondary windings | US93543 | 1998-06-08 | US5999078A | 1999-12-07 | Edward Herbert |
| A transform-rectifier module has a one-half turn secondary winding installed with very short, direct connections to four rectifiers. The core of the transformer has two parallel through holes. The secondary winding comprises two "Y" shaped windings. The "Y" legs of each winding are installed through the through holes from opposite sides of the core, and the ends of the "Y" windings connect to the four rectifiers. The common connections of the "Y" windings terminate on a ground plane. The rectifiers may be mounted on a common power plane which may also be a heat sink for the rectifiers and a mounting plate for the module as a whole. There is room through the through holes for a primary winding, which may be installed during manufacture or later. The modules may be used singly or in a matrix transformer-like arrangement. They are characterized by very low leakage inductance, high current capacity, good thermal properties and a low profile. | ||||||
| 134 | High frequency matrix transformer | US322521 | 1989-03-13 | US5093646A | 1992-03-03 | Edward Herbert |
| A high frequency matrix transformer comprises a plurality of interdependent magnetic elements interwired as a transformer. The various component parts of the high frequency transformer are arranged and interwired to provide a transformer having very low leakage inductance and very good coupling from the primary to the secondary. The high frequency matrix transformer is particularly well adapted for transformers requiring high equivalent turns ratios, high frequency, high power, and high dielectric isolation. It can have a plurality of parallel secondaries, which can source current to parallel rectifier circuits with current sharing. It can also have a plurality of parallel primary circuits, which also will current share, to balance the load between source switching circuits, or to provide dual input voltage capability (i.e., 120/240 volts). The high frequency matrix transformer tends to be spread out, and can be very flat, making it easy to ventilate or heat sink. The high frequency matrix transformer having push pull windings can include the primary switching device and secondary rectifying device within its windings, so that the transformer as a whole has direct current inputs and outputs. | ||||||
| 135 | Picture frame matrix transformer | US330199 | 1989-03-29 | US4978906A | 1990-12-18 | Edward Herbert; Stephen E. Cebry |
| A picture frame matrix transformer includes a plurality of interdependent magnetic elements arranged end-to-end in a closed pattern configuration and interwired as a matrix transformer having at least one primary and at least secondary windings wherein the end of the winding begins at one end-to-end position between adjacent magnetic elements and ends at another end-to-end position between adjacent magnetic elements. The magnetic elements further comprise N core segments which are interwired with the primary and secondary windings to provide a matrix transformer having both interger and non-interger transformation ratios. Also disclosed is a picture frame matrix transformer configured as an inductor. | ||||||
| 136 | Linear electromagnetic device | EP13173067.3 | 2013-06-20 | EP2688076A3 | 2015-12-02 | Peck, James L. |
A linear electromagnetic device (200), such as an inductor (202), transformer or the similar device, may include a core in which a magnetic flux (106) and (108) is generable. The device may also include an opening (208) through the core (204). The device may additionally include a primary conductor (212) received in the opening (208) and extending through the core (204). The primary conductor (212) may include a substantially square or rectangular (206) cross-section. An electrical current flowing through the primary conductor (212) generates a magnetic field about the primary conductor (212), wherein substantially the entire magnetic field is absorbed by the core (204) to generate the magnetic flux in the core (204).
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| 137 | MULTI-TOROID TRANSFORMER | EP09785416.0 | 2009-07-29 | EP2313899B1 | 2015-05-27 | RICHARDSON, Robert |
| 138 | PROCEDE D'ALIMENTATION D'UN COUPLEUR MAGNETIQUE ET DISPOSITIF D'ALIMENTATION D'UN DIPOLE ELECTRIQUE | EP07866417.4 | 2007-10-22 | EP2080203B1 | 2011-10-05 | LABOURE, Eric; MEYNARD, Thierry, Antoine; FOREST, François |
| The invention relates to a method for powering a magnetic coupler, in which: a) each winding of a first magnetic elementary cell is powered such as to produce a magnetising flux in a bar of the first cell which is joined with a second cell, the fundamental component of which has an angular offset xi; and b) powering each winding of the second cell such as to produce a magnetising flux in the bar of the second cell which is joined with the first cell, the fundamental component of which has an angular offset xj. The absolute value of the difference between the angular offsets xi and xj is greater than or equal to (I) rad. | ||||||
| 139 | POWER SUPPLY FOR ELECTROSTATIC PRECIPITATOR | EP07730263.6 | 2007-06-20 | EP2033303A2 | 2009-03-11 | RANSTAD, Per, Anders, Gustav |
| The disclosure pertains to a high-voltage AC-DC converter converting alternating current (1-3) into high-voltage direct current to be provided to a load (12), e.g. for use as an electrostatic precipitator. The converter comprises at least one transformer (10), wherein the transformer comprises at least one primary winding (18, 22-25) on the AC-side and at least two secondary windings (27) on the DC-side. | ||||||
| 140 | ELECTRONIC TRANSFORMER/INDUCTOR DEVICES AND METHODS FOR MAKING SAME | EP03752390.9 | 2003-09-15 | EP1547100B1 | 2008-05-28 | HARDING, Philip, A. |
| The present invention relates to transformer inductor devices and to the methods of construction for inductive components such as inductors, chokes, and transformers. Plural via holes 12 are formed through a ferromagnetic substrate 10. Primary 32 and secondary 34 conductors are placed through common vias to form a plurality of cell transformers have a 1:1 turns ratio. Circuits connect these primary and secondary winding in parallel and serial combustion to provide a transformer having the desired turns ratio. | ||||||
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