| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 315137000 | POLYPHASE A.C. SUPPLY | 9 |
| 20110234106 | THREE-PHASE LED POWER SUPPLY - A three phase rectifier rectifies received three phase a.c. power to generate a ripple d.e. voltage. A power distribution bus conveys distribution panel conveys distribution power comprising the ripple d.c. voltage or an a.c. voltage derived therefrom to a location of an LED based lamp that is distal from the three phase rectifier. Additional circuitry disposed with the LED based lamp drives the LED based lamp using the distribution power. | 09-29-2011 |
| 20130147363 | Optical Nanowire Antenna with Directional Transmission - A method and apparatus comprising a signal generator and wires. The signal generator is configured to generate electrical signals. The electrical signals have amplitudes and first phases. The wires are connected to the signal generator. The wires are configured to emit photons having phases in response to receiving the electrical signals. The photons have frequencies based on the amplitudes of the electrical signals and second phases based on the first phases of the electrical signals. The first phases of the electrical signals are selected such that the photons have a desired radiation pattern. | 06-13-2013 |
| 20150054408 | THREE-PHASE POWER SUPPLY AND SYSTEM OF LEDS WITH THREE-PHASE POWER SUPPLY - A three-phase power supply ( | 02-26-2015 |
| 315138000 | M phase to N phase (e.g., phase splitters) | 1 |
| 315139000 | Polyphase supply circuit | 1 |
| 315140000 | Phase multiplying | 1 |
| 20150084516 | LED-BASED LIGHTING APPARATUS WITH LOW FLICKER - An LED-based lighting apparatus is powered by multi-phase AC voltages to reduce flicker. A multi-phase AC-to-AC power generator is used to generate a plurality of AC voltages from an AC power source. The plurality of AC voltages each having a different phase are rectified by a plurality of rectifiers to provide a plurality of rectified AC voltages for a plurality of LED lighting units. Each LED lighting unit has voltage dependent brightness and reaches maximum brightness at different time due to the phase difference in the rectified AC voltage. The peak-to-peak variation in the total brightness is reduced and therefore the LED-based lighting apparatus has low flicker. | 03-26-2015 |
| 315141000 | Transformer in the supply circuit | 4 |
| 20120019148 | HIGH VOLTAGE POWER SUPPLY FOR POWERING A MAGNETRON IN A UV CURING LAMP ASSEMBLY - A power supply for use in a UV curing lamp assembly is disclosed. The power supply is powered by two intermediate frequency (200-400 Hz) low voltage sinusoidal power sources that drive the primary windings of a dual laminated transformer. The low voltage sinusoidal power sources are configured to have different phases. The out-of-phase low voltage sine wave sources are converted to high voltage sine waves on the secondary windings of the dual laminated transformer having the same phase difference relationship. A single rectifier comprising six high voltage diodes, called a ladder rectifier, combine the two out-of-phase sine waves into a single, approximately DC output power source. By modulating a phase difference between two input sine wave power sources, the approximate DC output voltage exiting the ladder rectifier may be alternated between a low ripple mode of about a 13.84% ripple, a high current mode, a high voltage mode, and an intermediate mode with a ripple in the range of about 13.84% to about 100%. | 01-26-2012 |
| 315144000 | Plural load devices | 3 |
| 20120256546 | SOLID-STATE LIGHT EMITTING DEVICE HAVING CONTROLLABLE MULTIPHASE REACTIVE POWER - The present invention utilizes a three-phase or multiphase AC power source, and the electric power of each phase respectively drives its corresponding solid-state light emitting member, and the solid-state light emitting members respectively driven by each phase power are arranged adjacently or arranged with an overlapping means, so that the light of the individual solid-state light emitting members respectively driven by the multiphase power source and arranged adjacently or arranged with an overlapping means can reduce the brightness pulse through synthetic illumination; and through being controlled by a solid-state switch device for controlling AC conductivity phase angle ( | 10-11-2012 |
| 20120256547 | SOLID-STATE LIGHT EMITTING DEVICE HAVING CONTROLLABLE MULTIPHASE REACTIVE POWER - The present invention utilizes a three-phase or multiphase AC power source, and the electric power of each phase respectively drives its corresponding solid-state light emitting member, and the solid-state light emitting members respectively driven by each phase power are arranged adjacently or arranged with an overlapping means, so that the light of the individual solid-state light emitting members respectively driven by the multiphase power source and arranged adjacently or arranged with an overlapping means can reduce the brightness pulse through synthetic illumination; and through being controlled by a solid-state switch device for controlling AC conductivity phase angle ( | 10-11-2012 |
| 20130221854 | DUAL-SWITCH CURRENT CONVERTER - The invention relates to a current converter of the forward converter type for converting a three-phase primary voltage into a plurality of secondary voltages, with a magnetic intermediate circuit including at least three transformer secondary windings, wherein the current converter on its primary side includes at least three transformers with respectively two primary windings wound in opposition directions and respectively at least one secondary winding, and that two electronic switches are provided, wherein the first switch respectively controls a primary winding of the three transformers via a set of diodes and wherein the second switch respectively controls another primary winding of the three transformers via a second set of diodes. | 08-29-2013 |
| 315147000 | Plural cathode and/or anode discharge device load | 1 |
| 20120062124 | LIGHTING DEVICE WITH OPTICAL PULSATION SUPPRESSION BY POLYPHASE-DRIVEN ELECTRIC ENERGY - The present invention relies on polyphase alternating current power with phase difference or direct current power rectified from polyphase alternating current power to drive a common electric-driven luminous body, or to separately drive adjacently installed individual electric-driven luminous bodies so that the pulsation of the outwardly projected light is reduced. | 03-15-2012 |
