66results about How to "Low supply" patented technology

A hub allowing collaboration and communication, including delayed and secure printing, faxing, telephone service, internet and e-mail access, and data transfer between personal electronic devices and the hub and / or other personal electronic devices and / or remote devices. Embodiments operate on a fee-for-service basis and can include a payment acceptance module. Embodiments include a large main display on which advertisements and information can be displayed during periods of non-use. Additional displays can be included with associated input devices to allow multiple users to use the hub simultaneously. Embodiments can include networking ports, wired and / or wireless, with which users can connect devices to the hub for data transfer, sharing, and collaboration.

The present invention relates to a wetness detector system that rapidly detects the presence of wetness due to a liquid leak in a system. The wetness detector system contains a reusable wetness sensor that is able to accurately detect the presence of wetness and, in the case of an extracorporeal blood treatment, the presence of blood. The wetness detector system can quickly alert both a user and medical personnel that a liquid leak has been detected in a treatment system and, if necessary, halt the removal of liquids and / or blood from the patient. If a liquid leak is not detected for a period of time, the wetness sensor can enter a low power state, extending the life of the device. The wetness detector system can monitor a number of wetness sensors simultaneously, which would, for example, eliminate the need for medical personnel to continuously inspect numerous patients visually for potentially fatal blood leaks due to needle dislodgement during an extracorporeal blood treatment.

The present invention relates to a wetness detector system that rapidly detects the presence of wetness due to a liquid leak in a system. The wetness detector system contains a reusable wetness sensor that is able to accurately detect the presence of wetness and, in the case of an extracorporeal blood treatment, the presence of blood. The wetness detector system can quickly alert both a user and medical personnel that a liquid leak has been detected in a treatment system and, if necessary, halt the removal of liquids and / or blood from the patient. If a liquid leak is not detected for a period of time, the wetness sensor can enter a low power state, extending the life of the device. The wetness detector system can monitor a number of wetness sensors simultaneously, which would, for example, eliminate the need for medical personnel to continuously inspect numerous patients visually for potentially fatal blood leaks due to needle dislodgement during an extracorporeal blood treatment.

An optical transmitter and / or a constituent electro-optic transducer driver that performs active matching. The transducer driver performs active matching using a voltage step down through one base-emitter bipolar transistor, followed by a step up approach through the base-emitter of another bipolar transistor, thereby allowing for lower supply voltages. Furthermore, the voltage drop across the source resistor is minimal by using an operation amplifier in a feedback configuration, thereby further encouraging operability with low supply voltages. The electro-optic transducer driver is also beneficial in that it has high AC-coupling efficiency of the modulation current to the electro-optic transducer, may operate at high speeds with reduced jitter.

A method and apparatus for controlled dispensing of consumable supply items, such as office supplies, wherein the quantity of items added or removed from the apparatus is determined by sensing a change in weight of items within the apparatus. The apparatus may be in the form of a cabinet having a plurality of doors, each door having a secured position preventing access to the items within the cabinet. The cabinet may be configured to unlock less than all of the doors to allow limited access to the items based on various factors, such as user identification and item cost.

A respirator with active dehumidification of the breathing gas has a breathing gas cooler in the form of a Peltier element (16), whose warm side is arranged in the inspiration branch (4, 7) and whose cold side (18) is arranged in the expiration branch (5, 12).

A stepped approach to cooling capacity control and the HGRH status logic to achieve the requisite control of humidity and temperature provided to an interior area or building space receiving conditioned air. The system includes at least two independent circuits, each circuit having at least one compressor. At least one of the independent circuits includes hot gas reheat hardware thereby providing HGRH capability. The logic provides an efficient method for maintaining both humidity and temperature in the interior area comfortable for occupants within limits as determined by psychrometrics. The system and method match the sensible capacity and latent capacity of the system match to the sensible and latent loads of the conditioned space.

An induction heating apparatus for use in pre-heating pipe joints. The induction heating apparatus comprises a frame for applying around the pipe joint, and an induction heating coil made from Litz cable wires.

A power supply device includes a first semiconductor switching device for controlling an alternating input current waveform, a smoothing capacitor to which a rectified voltage is applied, and an inverter that converts the rectified voltage into alternating current via a step-up chopper. The step-up chopper includes an inductor and a diode connected between the smoothing capacitor and inverter, and a second semiconductor switching device connected to the inductor and diode. The power supply device further includes an instantaneous voltage drop compensation function whereby the energy of the smoothing capacitor is supplied by an operation of the step-up chopper to the inverter when there is an instantaneous voltage drop in an alternating current power supply voltage. MOSFETs with a breakdown voltage lower than that of the first semiconductor switching device are connected between terminals of the step-up chopper, thus further reducing loss in comparison with when a bypass diode is used.

Provided are a battery and a lead member, designed so that high strength of weld between them can be maintained with less variation despite the supply of lower welding current thereto when the lead member is welded to the outer surface of the battery by the parallel resistance welding method, and a battery pack using the same. A layer of an Ni-based alloy, e.g., an Ni-Fe alloy, is formed on a part or the whole of the outer surface of the battery. The lead member for battery connection is composed of a substrate and an Ni-Sn alloy layer formed on that surface of the substrate which is welded to the outer surface of the battery. The battery pack is composed of a battery group that is assembled by using the battery and / or the lead member and stored in a shell.

A method for producing a fork arm (18) for load-carrying devices, said fork comprising a fork blade (5) which is substantially horizontal in the operating position, and a substantially vertical fork back (20) that connects via a fork bend (19) to said fork blade and is provided with connection elements (2, 3) for the conveying device, wherein the fork arm consists of a plurality of parts (1; 2, 4, 8, 9, 11; 18′, 12 to 17) that are connected to one another, at least a number of said parts are welded to one another, and parts (1; 2, 4, 8, 9, 11; 18′, 12 to 17) of the fork arm are welded to one another by electron beam welding and / or laser welding, wherein the weld penetrates planarly with a depth of at least 15 mm between adjoining surfaces of the parts.

A fixing device has: (a) an electromagnetic coil placed with a gap from a member of a magnetic material to be heated; a switching device that supplies electronic power to the electromagnetic coil; (b) a switching control unit that controls duty ratio for the switching device under a condition that a load voltage and a load current of the switching device are substantially zero when the switching device is turned on and / or off; (c) a shield member capable of being placed between the electromagnetic coil and the member to be heated to shield the member to be heated against a magnetic flux from the electromagnetic coil; and (d) a shield control unit that controls a shield amount of the shield member by moving either the shield member or both the electromagnetic coil and the member to be heated.

The invention relates an electrostatic speaker system comprising—a high voltage switching power amplifier,—an extraction filter having an input coupled to an output of the high voltage switching amplifier, and—an electrostatic speaker element having a capacitive load and an input coupled to an output of the extraction filter. The combination of the extraction filter and capacitive load form a filter circuitry having at least a first filter stage and a second filter stage. The first filter stage comprising a RLC circuit having a resonant frequency ωO and a quality factor Q>½ and wherein the second filter stage being a low pass filter comprises at least one electrical element for damping a signal component at the resonant frequency of the RLC circuit at the output of the extraction filter.

A fuel injection system for internal combustion engines includes an injector supplied from a high-pressure fuel source and with a pressure booster device, in which the closing piston can be acted upon by fuel pressure to attain a force exerted on the closing piston in the closing direction, and in which the closing pressure chamber and the return chamber of the pressure booster device are formed by a common closing pressure return chamber, and all the portions of the closing pressure return chamber communicate with one another permanently for exchanging fuel, so that despite a low pressure boost by the pressure booster device, a relatively low injection opening pressure is attainable.

Provided are a battery and a lead member, designed so that high strength of weld between them can be maintained with less variation despite the supply of lower welding current thereto when the lead member is welded to the outer surface of the battery by the parallel resistance welding method, and a battery pack using the same. A layer of an Ni-based alloy, e.g., an Ni-Fe alloy, is formed on a part or the whole of the outer surface of the battery. The lead member for battery connection is composed of a substrate and an Ni-Sn alloy layer formed on that surface of the substrate which is welded to the outer surface of the battery. The battery pack is composed of a battery group that is assembled by using the battery and / or the lead member and stored in a shell.

The design and manufacture method of an oxygen concentration sensor made with silicon micromachining (a.k.a. MEMS, Micro Electro Mechanical Systems) process for applications of oxygen measurement with fast response time and low power consumption is disclosed in the present invention. The said silicon oxygen concentration sensor operates with an yttrium stabilized zirconia oxide amperometric cell supported on a membrane made of silicon nitride with a heat isolation cavity underneath or a silicon nitride membrane with silicon plug for mechanical strength enforcement.

The variable transconductance circuit includes: a voltage-current conversion circuit for outputting a current signal linear with an input voltage signal; first and second MOS transistors for converting the current signal received to a square-root compressed voltage signal; and third and fourth MOS transistors for converting the square-root compressed voltage signal to a linear current signal. A bias current at the first and second MOS transistors and a bias current at the third and fourth MOS transistors are varied to control transconductance.

A portable, multipurpose, air dispensing apparatus is disclosed, comprised of a small, portable canister that holds a combination of compressed oxygen and nitrogen that the user can tap in order to recuperate from the physical exertion by delivering these gasses to the cardiovascular system in a quick and efficient manner. The canister includes a mouthpiece / regulator combination that the user places in his or her mouth and, by depressing a button, a breath of the pure oxygen / nitrogen is delivered. The canister is disposable and replaceable and holds enough gas for approximately 15 average breaths. Carried in a convenient arm band, the canister gives the user the ability to tap the benefits of the gasses whenever the need is felt. Additionally, the present invention serves a safety purpose in high-altitude sports where the air is thin and oxygen supplies are low.

The present invention relates to a semiconductor device that is employed in a switching power supply for which a higher output is required, prevents noise from the coil, transformer, and so forth and implements a high efficiency power supply. By connecting a current mirror circuit including a p-type MOSFET, an overcurrent detection level tuning circuit, an overcurrent detection circuit, and an intermittent oscillation control circuit to an FB terminal peripheral circuit that is a feedback signal input terminal, PWM control capable of varying the IDRAIN peak value is implemented for the transition from a heavy load state to a light load state and intermittent oscillation control is implemented for the transition between a light load state to a loadless state, such that noise from the coil, transformer, and the like is suppressed and higher efficiency is realized.

A continuous method and an arrangement for separation of crude tall oil (CTO) from black liquor. The method involves an initial separation within a tank and / or within a centrifugal separator, and processing of the thus separated tall oil soap product by acidulation and / or splitting, followed by further separation, e.g. by centrifugation. The black liquor fraction may be processed for further CTO retrieval, before evaporation and feeding to a recovery boiler.

The present disclosure relates to methods and devices for use in photoelectrochemical reduction of CO2. In particular, it is disclosed a filter-press photoelectrochemical cell for producing a reduction product from CO2 and a method for the photoelec-trochemical reduction of CO2.

A multi-purpose visual signaling device, particularly for road emergency warning and in low visibility conditions, comprises light-emitting means (3) for generating a light beam (4) and means (5) for supplying power to light-emitting means (3). The light-emitting means (3) include at least one laser projector (6) adapted to project images (7) over a substantially flat surface for such images to be visible from a relatively long distance. The light-emitting means (3) and the power supply means (5) are mounted to a stationary support structure (2) which may include a front warning triangle-defining portion (12). The laser projector (6) comprises at least one laser diode (8) and optical and / or electronic means (9) for generating images (7) in space or over a substantially flat surface. The optical and / or electronic means (9) comprise a diffractive lens (10). Images (7) include monochromatic, polychromatic and / or holographic images, possibly of variable configuration, and preferably form a triangular design.

Provided is a tensioner with which efficiency of recirculation of oil can be improved and dependency on oil supplied from an oil pump or the like can be reduced. The tensioner includes a pressure adjustment mechanism, wherein the pressure adjustment mechanism includes a cylinder portion and a piston that is disposed in the cylinder portion so as to be capable of moving in a front-rear direction and that divides an interior space into an oil storage chamber and an adjustment space, and a liquid-tight state is maintained between the cylinder portion and the piston in all positions between a position of the piston where the piston has moved closest to the oil storage chamber side and a position of the piston where the piston has moved closest to the adjustment space side.

A semiconductor device has a semiconductor chip in which a plurality of semiconductor components and a plurality of pads are arranged, a plurality of external connection contacts arranged in grids, and a plurality of wires for electrically connecting the pads and the external connection contacts. The pads include a plurality of pad groups including a pair of electrode pads connected to the plurality of semiconductor components in common and a plurality of signal pads respectively connected to the semiconductor components connected to the electrode pads. In each pad group, each signal pad is arranged adjacently to one of the electrode pads; and each wire extending from each signal pad is extended along a wire extended from the electrode pad adjacent to each signal pad.

The present invention relates to a semiconductor device that is employed in a switching power supply for which a higher output is required, prevents noise from the coil, transformer, and so forth and implements a high efficiency power supply. By connecting a current mirror circuit including a p-type MOSFET, an overcurrent detection level tuning circuit, an overcurrent detection circuit, and an intermittent oscillation control circuit to an FB terminal peripheral circuit that is a feedback signal input terminal, PWM control capable of varying the IDRAIN peak value is implemented for the transition from a heavy load state to a light load state and intermittent oscillation control is implemented for the transition between a light load state to a loadless state, such that noise from the coil, transformer, and the like is suppressed and higher efficiency is realized.

A stepped approach to cooling capacity control and the HGRH status logic to achieve the requisite control of humidity and temperature provided to an interior area or building space receiving conditioned air. The system includes at least two independent circuits, each circuit having at least one compressor. At least one of the independent circuits includes hot gas reheat hardware thereby providing HGRH capability. The logic provides an efficient method for maintaining both humidity and temperature in the interior area comfortable for occupants within limits as determined by psychrometrics. The system and method match the sensible capacity and latent capacity of the system match to the sensible and latent loads of the conditioned space.

The present invention relates to an isolating two-way constant-current maintenance system based on a power supply of shared equipment, comprising a power supply, an electronic switch K1, a current sensor, a main battery management system controller, and a plurality of secondary battery management system controllers; wherein the power supply is connected with the current sensor; the current sensor is respectively connected with the electronic switch K1 and the main battery management system controller; the electronic switch is respectively connected with the main battery management system controller and the secondary battery management system controllers; the main battery management system controller is respectively in a communication connection with the plurality of secondary battery management system controllers; and each one of the secondary battery management system controllers is connected with a battery pack. The isolating two-way constant-current maintenance system based on a power supply of shared equipment has the advantages of small size, low cost, high power conversion efficiency, two-way and constant maintenance, and low requirements on the power supply. The system can quickly enhance the utilization rate of the battery and effectively prolong the service life of the battery pack.

A liquid (e.g., paint) distribution system comprising: at least one liquid reservoir; at least one liquid exchange assembly, wherein the liquid exchange assembly comprises at least one liquid exchange module; a plurality of liquid circulation lines disposed between the liquid reservoir and at least one liquid exchange module, wherein each the liquid circulation line supplies at least one liquid to the liquid exchange module; at least one liquid change valve module; and at least one liquid supply line in fluid communication between the liquid exchange module and the liquid change valve module. The liquid exchange module is configured such that the number of the liquid supply lines in fluid communication between the liquid exchange module and the liquid change valve module is less than the number of liquid circulation lines from the liquid reservoir to the liquid exchange module.