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Pet Toilet-Like Water Disk and Food Storage
One pet-friendly inventor patented "a device for watering pets, e.g., a dog or cat." The device, he helpfully noted, "has the general shape of a toilet."
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| Number | Title | Issue Date |
| 8036008 | DC/DC power converting apparatus Three or more circuits including a driving inverter circuit and rectifier circuits are connected in series, each of the circuits including a high-voltage side MOSFET and a low-voltage side MOSFET connected in series as well as a smoothing capacitor having positive a... | 10/11/2011 |
| 7787270 | DC-DC and DC-AC power conversion system A galvanic isolated DC-DC and DC-AC power conversion system is coupled to a plurality of DC sources which are derived from a combination of a plurality of single-phase and three-phase AC-DC converters. The DC-DC and DC-AC power conversion system in one embodiment is... | 08/31/2010 |
| 7433212 | System linking apparatus for generated electric power A system linking apparatus for generated electric power which may be made smaller and more efficient. The system linking apparatus is intended for connecting an electric power system to an output of a power generator through a linking inverter (PWM inverter). The sy... | 10/07/2008 |
| 7362182 | Power amplifier A radio frequency power amplifier including control electronics for providing control signals for timing of the power amplifier. A first group of the drivers are coupled to the control electronics and a second group of drivers are coupled to the control electronics.... | 04/22/2008 |
| 7355832 | Methods and arrangements for reducing partial discharges on printed circuit boards Methods and arrangements for reducing partial discharges on a printed circuit board are provided. A method of reducing partial discharge in a printed circuit board includes providing a conducting surface coupled to a component under at least one of electrical and th... | 04/08/2008 |
| 7324359 | Circuit for converting alternating voltage into high-voltage direct voltage A converter circuit for a wind power system for supplying a high-voltage direct voltage connection. The system includes a transformer with one primary winding per phase and a plurality of secondary windings per phase. Three of these secondary windings of different p... | 01/29/2008 |
| 7307859 | Circuit for reduction of voltage stress between windings The present invention is a high voltage power converter having primary and secondary winding sets in a single planar layer stacked in increasing voltage and arranged without the use of a conductor. Substantially no AC stress exists between winding sets. ... | 12/11/2007 |
| 7305065 | X-ray generator with voltage doubler Between terminals of secondary windings in a high-voltage transformer (3), there are connected in parallel input side terminals of a plurality of diode full bridge circuits each via voltage maintaining means such as a capacitor maintaining a voltage peak valu... | 12/04/2007 |
| 7292451 | Architecture for power modules such as power inverters Power converters such as power modules configured as inverters employ modularized approaches. In some aspects, semiconductor devices are thermally coupled directly to thermally conductive substrates without intervening dielectric or insulative structures. Additional... | 11/06/2007 |
| 7289343 | Architecture for power modules such as power inverters Power converters such as power modules configured as inverters employ modularized approaches. In some aspects, semiconductor devices are thermally coupled directly to thermally conductive substrates without intervening dielectric or insulative structures. Additional... | 10/30/2007 |
| 7262982 | Power conversion apparatus A power conversion apparatus is formed by connecting unit communication-assisting means in series between an alternating-current terminal incorporated in a conventional current-type power conversion apparatus, and an alternating-current load. The communication-assis... | 08/28/2007 |
| 7236079 | Transformer bobbin for preventing excitation peak voltage insulation damage A transformer bobbin for preventing excitation peak voltage insulation damage that is applicable for application in cold cathode tube resonant inverters or backlight modules, wherein such transformers must frequently endure relatively high voltages, and, moreover, a... | 06/26/2007 |
| 7231960 | Cooler for cooling both sides of semiconductor device An object of the present invention is to provide a cooler for cooling both sides (top and bottom surfaces) of a semiconductor device, wherein the variation of pressing force on flat cooling tubes holding a semiconductor device is reduced, thereby uniformly dissipati... | 06/19/2007 |
| 7218500 | High-voltage generator and accelerator using same In a high-voltage generator including a CW circuit (high-voltage circuit), where the CW circuit generates a high voltage through booster circuits that are provided for boosting an input voltage and connected to one another in multiple stages, a conductive shielding ... | 05/15/2007 |
| 7215233 | Inductive coupler for power line communications There is provided an inductive coupler for coupling a signal to a conductor. The inductive coupler includes (a) a magnetic core having an aperture through which the conductor is routed, (b) a winding wound around a portion of the magnetic core, where the signal is c... | 05/08/2007 |
| 7215102 | Semi-clockless, cascaded, current-mode power regulator having high noise immunity and arbitrary phase count A semi-clockless, cascaded, current-mode regulator has a first regulator that receives a clock signal from a controller. By ‘semi-clockless’ is meant that a clock signal is applied to the first of a cascaded plurality of regulators, and that as a result of the c... | 05/08/2007 |
| 7200007 | Power stack A power stack includes cooling pipes and semiconductor modules which are alternately laminated. Each cooling pipe includes an inside space dissected into cooling passages in which coolant flows. Both surfaces of the semiconductor module in a laminating direction are... | 04/03/2007 |
| 7170767 | System and method for regenerative PWM AC power conversion A power conversion system for driving a load is provided. The power conversion system comprises a power transformer having at least one primary winding circuit and at least one secondary winding circuit, the primary winding circuit being electrically connectable to ... | 01/30/2007 |
| 7148661 | Multi-pulse converter circuits An AC to DC converter with harmonic suppression is provided. The harmonic suppression is provided by forcing an instantaneous current conflict between series connected rectifier bridges 54, 80, such that a voltage waveform at 6 times the AC supply frequency o... | 12/12/2006 |
| 7088080 | Power supply circuit for vacuum fluorescent display A power supply circuit for a vacuum fluorescent display includes a boosting coil, input terminal, switching transistor, PWM control circuit, boosting circuit, first filament terminal, and second filament terminal. The boosting coil is provided in a current path to g... | 08/08/2006 |
| 7075764 | Method and arrangement for reducing stress in electrical network A method and arrangement for reducing stress in an electrical network. In the method and arrangement, an inrush current caused by a network component or part connected to the live electrical network is minimized, the network component or part being disconnected from... | 07/11/2006 |
| 7061743 | Multi-pulse HVDC system using auxiliary circuit The present invention relates to a multi-pulse HVDC system which is capable of minimizing the number of thyristors by providing a thyristor auxiliary circuit in a conventional 12-pulse thyristor HVDC(High Voltage Direct Current), not using an additional stack of a t... | 06/13/2006 |
| 7054411 | Multichannel contactless power transfer system for a computed tomography system A multichannel, contactless power transfer system includes a primary power inverter disposed on a stationary side of the system, and an auxiliary power inverter disposed on the stationary side of the system. A rotary transformer has a primary side thereof disposed o... | 05/30/2006 |
| 6975698 | X-ray generator and slip ring for a CT system The present invention is directed to an apparatus for supplying power to a rotatable x-ray tube for generation of an x-ray beam for acquisition of CT data. The apparatus includes a slip ring to transfer power from a stationary inverter to a rotatable HV tank. The HV... | 12/13/2005 |
| 6914350 | Switching arrangement A solid state switching arrangement includes a transmission line which acts as a primary transformer loop and acts with secondary windings carried by switching modules to apply triggering signals to the switches. The arrangement may include greater than sixty module... | 07/05/2005 |
| 6911797 | Multi-axes industrial processing machine A multi-axes industrial processing machine with a multi-axes electrical drive system and at least two axle drives that have each an axle module and a built-in motor is disclosed. The machine further includes an impedance that is transformer-coupled with a supply mod... | 06/28/2005 |
| 6856185 | Simple RMS to DC converter A full-wave rectifier, two resistors forming a voltage divider across the rectifier outputs and a capacitor in parallel with one of the resistors, provide an output across the capacitor that approximates the RMS equivalent of an input signal to the rectifier. The ca... | 02/15/2005 |
| 6847531 | System and method for regenerative PWM AC power conversion A power conversion system for driving a load is provided. The power conversion system comprises a power transformer having at least one primary winding circuit and at least one secondary winding circuit, the primary winding circuit being electrically connectable to ... | 01/25/2005 |
| 6667875 | Pulse generator for generating a voltage pulse and corresponding method A pulse generator produces a voltage pulse for an inductive or capacitive load, in particular for an electrostatic dust extractor, having an energy-storage capacitor which is connected in series with a controllable switch. The switch is self-opening at th... | 12/23/2003 |
| 6654266 | Selectable arrangement energy converter An electric energy converter comprises N transformers each including a primary winding and a secondary winding, a primary circuit connected to two input terminals on which the primary windings of the transformers are connected, a secondary circuit connect... | 11/25/2003 |
| 6549436 | Integrated magnetic converter circuit and method with improved filtering A converter and rectifier circuit comprises a magnetic core, a first secondary winding, a second secondary winding, a third secondary winding, a first rectifier, a second rectifier and an output capacitor. The first, second and third secondary windings ar... | 04/15/2003 |
| 6542390 | System and method for regenerative PWM AC power conversion A power conversion system for driving a load is provided. The power conversion system comprises a power transformer having at least one primary winding circuit and at least one secondary winding circuit, the primary winding circuit being electrically conn... | 04/01/2003 |
| 6430069 | Contactless connectors for use in a high frequency alternating current power distribution system A high frequency alternating current (AC) power distribution system includes a transmission medium. A system power supply is coupled to the transmission medium. A high frequency AC voltage regulator module (VRM) is coupled to the transmission medium via a... | 08/06/2002 |
| 6275396 | Power feed for a submarine communications system A power feed for a submarine communications system includes a plurality of power converters each of which has at least 2 step-up transformer stages in which at least one of the windings of at least one of the transformer stages of at least one of the plur... | 08/14/2001 |
| 6252787 | Controllable circuit for providing bi-directional current to a load A bi-directional current circuit disposed between two power sources and a load. A first switch and a second switch each connect the load to one of the power sources respectively, whereby when the first switch is closed and the second switch is open curren... | 06/26/2001 |
| 6154382 | High-voltage power supply circuit having a plurality of diode bridges connected in series to the secondary winding of a transformer A high-voltage power supply circuit receives ac input, effects rectification and successive multiplication, and outputs a high dc voltage. The high-voltage power supply circuit includes a plurality of diode bridges connected to a secondary winding of a tr... | 11/28/2000 |
| 6026004 | Modular high voltage power supply with integral flux leakage compensation A power supply for producing a high voltage DC output. The power supply comprises a primary winding and a series of secondary stages each having secondary windings coupled to the primary winding through a magnetic circuit. Each secondary stage comprises a... | 02/15/2000 |
| 5991178 | VHV transformer/rectifier for surface mounting A miniaturized VHV transformer/rectifier for surface mounting on a screen-printed ceramic substrate. The primary winding and secondary windings are wound on separate limbs of the magnetic circuit which are sufficiently far apart to obtain a considerable l... | 11/23/1999 |
| 5933338 | Dual coupled current doubler rectification circuit A rectifying circuit comprising first and second current doublers is disclosed. In some embodiments, the first and second current doublers are connected in series. In other embodiments, the current doublers are connected in parallel. In phase pairs of ind... | 08/03/1999 |
| 5898582 | Device comprising a stack of thyristors and freewheel diodes The present invention relates to a stack device comprising a stack of gate turnoff thyristors GTO, of freewheel diodes DRL, and of diodes D, for a semiconductor circuit, said stack device including power supply electrical connection terminals +HT and -HT,... | 04/27/1999 |
