Abstract: A phase control dimming LED driver is able to achieve complete stabilization of both TRIAC and trailing edge dimmers by using a large inductor to limit the inrush normally associated with the switching on of the TRIAC during each half cycle. Such a large inductor is not normally used because when a trailing edge dimmer is applied, a damaging voltage surge known as “ring up” can be generated when the trailing edge dimmer switch turns off. In this invention the inductor is placed after the input rectifier bridge and equipped with a diode and resistor which allow the energy in the inductor at the moment when a trailing edge dimmer switches off to be harmlessly dissipated.

Abstract: A circuit is described which allows an LED driver to be controlled by a control signal in such a manner that at a predetermined dimming level the output current goes to zero instead of continuing to indefinitely low dim levels, thus avoiding the possibility of flickering or shimmer at extremely low dim levels. An electronic circuit for driving an LED load with a conventional LED drive circuit has inputs connected to a power source and output terminals providing regulated output power including a load disconnect switch in series with the LED load which has a control node responsive to a control circuit; and a control input which commands varying levels of input power. The control circuit is configured to be responsive to the control input so that when the control input corresponds to a certain continuous level of dimming, the load disconnect switch is opened.

Abstract: A circuit is described which allows an LED driver to be controlled by a control signal in such a manner that at a predetermined dimming level the output current goes to zero instead of continuing to indefinitely low dim levels, thus avoiding the possibility of flickering or shimmer at extremely low dim levels. An electronic circuit for driving an LED load with a conventional LED drive circuit has inputs connected to a power source and output terminals providing regulated output power including a load disconnect switch in series with the LED load which has a control node responsive to a control circuit; and a control input which commands varying levels of input power. The control circuit is configured to be responsive to the control input so that when the control input corresponds to a certain continuous level of dimming, the load disconnect switch is opened.

Abstract: Embodiments of the invention provide a mat upon which can be placed an electronic device. A cable is routed through a channel that is at least partially inside the mat. One end of the cable connects to the electronic device while the other end can exit the mat through, for example, an opening in the mat's edge, or other opening. Multiple devices and cables can be accommodated. Figures provided herein illustrate different types of mat and channel designs. Other designs are possible.

Abstract: An LED driver has a power supply configured to receive power from a power input. A primary controller configured to receive power from the power supply and output power to a power output. The power output is configured to be connected to LED lights. A dimmer provides a dimming signal, and the dimmer has an adjustable voltage circuit. An offset voltage is added to a ground path on the adjustable voltage circuit. The offset voltage can be created by a silicon diode adding the offset voltage to a transformer's secondary winding ground path on a DC regulated voltage circuit. The adjustable voltage circuit can be formed as the DC regulated voltage circuit. The DC regulated voltage circuit is a 10 VDC regulated voltage circuit.

Abstract: A probe compound for protein tyrosine phosphatases (PTPs), as shown in Formula (I) is provided. In Formula (I), A1 and A2 represent amino acids. The amino acids include leucine, phenylalanine, glutamic acid, lysine, alanine, arginine, aspartic acid, asparagine, citrulline, cysteine, cystine, glutamine, glycine, histidine, hydroxyproline, isoleucine, methionine, proline, serine, threonine, tryptophan, valine or a combination thereof. The invention also provides probe compound precursors for protein tyrosine phosphatases (PTPs).

Abstract: Embodiments of the present invention relate to an LED light fixture that linearly arranges a plurality of LEDs within a housing such that each LED has a respective collimator. The output from the collimators is directed to a diffuser that shapes the light provided by the fixture so that a desired viewing angle is achieved. More particularly, the LEDs are located on a first circuit board and the driver chips for the LEDs are located on a second circuit board which sandwich a heat sink.

Abstract: Embodiments of the present invention relate to an LED light fixture that linearly arranges a plurality of LEDs within a housing such that each LED has a respective collimator. The output from the collimators is directed to a diffuser that shapes the light provided by the fixture so that a desired viewing angle is achieved. More particularly, the LEDs are located on a first circuit board and the driver chips for the LEDs are located on a second circuit board which sandwich a heat sink.

Abstract: This invention relates to a method of treating an infection with an influenza virus. The method includes administering to a subject in need thereof an effective amount of a compound of formula (I): Each variable in this formula is defined in the specification.

Abstract: A stepper motor includes a rotor having a ring-shaped body having a circumference along which a plurality of magnetic poles of alternates. A plurality of stator members is arranged along and spaced from the circumference of the rotor. Each stator member has two limbs circumferentially spaced from each other by an angular range corresponding to an odd number of the magnetic poles of the rotor. A coil winding is formed around an end portion of each limb of each stator member and is substantially flush with the end face of the end portion to reduce and minimize magnetic loss. The stepper motor further includes a circuit board to which the coil windings are electrically connected whereby the phase switching sequences of the stator members and the windings is controlled.

Abstract: The presently disclosed subject matter provides methods and compositions for modulating gene expression in plants. Also provided are plants and cells comprising the compositions of the presently disclosed subject matter.

Abstract: A digital music conversion device for converting digital music files in a first format into ones in a second format. The converted digital music files are stored in a portable recording medium. Using the disclosed conversion device, a digital music file in the first format that occupies a larger storage space is converted into one that occupies less space. Therefore, the latter can be stored in a portable storage medium. In comparison with the prior art, the invention does not need a computer to perform file format conversions and has simpler operations.

Abstract: A member made from a suitable material such as a polyurethane epoxy designed to withstand impact against an object is provided as a support member. For example, the member may constitute an insert disposed on or in the heel of a shoe but a wide variety of other applications are possible. A suitable member such as a piezoelectric member is disposed on the support member to produce a signal when the support member is impacted against the object or when the impact is released. This signal is amplified by an amplifier which is powered by a suitable source such as a battery. The amplified signals are introduced to a light emitting member such as a light emitting diode which provides an illuminated indication of the impact of the support member against the object. A member such as a resistance may be disposed in the circuit with the battery and the amplifier to limit the current flow through the amplifier during the times that the piezoelectric member is energized.

Abstract: A member made from a suitable material such as a polyurethane epoxy designed to withstand impact against an object is provided as a support member. For example, the member may constitute an insert disposed on or in the heel of a shoe but a wide variety of other applications are possible. A suitable member such as a piezoelectric member is disposed on the support member to produce a signal when the support member is impacted against the object or when the impact is released. This signal is amplified by an amplifier which is powered by a suitable source such as a battery. The amplified signals are introduced to a light emitting member such as a light emitting diode which provides an illuminated indication of the impact of the support member against the object. A member such as a resistance may be disposed in the circuit with the battery and the amplifier to limit the current flow through the amplifier during the times that the piezoelectric member is energized.