Abstract: A low profile (1U) power distribution system includes a power shelf assembly having a first side and an opposing second side. First and second bus bars extend across the assembly and substantially in parallel with the first and second sides, the second bar positioned behind the first bar. One row of power supply pins extends from the bars to engage power supply units within the assembly. A first set of pins extends from the first bus, while a second set extends from the second bar and protruding through respective apertures in the first bar. An insulating material may be provided to electrically insulate power supply pins of the second bar from the first bar. The reduced height profile of the bars allows for cooling air to pass through the remaining >50% of the assembly, which may now desirably include additional electrical circuits within the cooling channel.

Abstract: A power converter startup circuit establishes an operating voltage for control circuitry during startup and is then disabled to reduce no-load power dissipation. The startup circuit has a normally on characteristic to automatically provide startup charging current for a startup capacitor. The control circuitry begins operating as the startup capacitor voltage reaches an operating value, and it generates an inhibitory signal that disables the startup circuit to stop the startup charging current and reduce power dissipation. The normally on characteristic is achieved by an emitter switched current source employing a normally on device such as a depletion-mode J-FET. A resistor divider network provides both biasing for the startup current source and a point of monitoring the power supply input voltage during steady state operation. A charge pump provides a voltage of the inhibitory control signal sufficiently above the auxiliary voltage to turn off the normally on switching transistor.

Abstract: A switched-mode power supply in a set of parallel-connected switched-mode power supplies is operated to (1) monitor both output current and operating temperature, and (2) auto-tune an output voltage using two-dimensional control that employs a two-dimensional function of the output current and the operating temperature. The two-dimensional function is a sharing function whose use in each of the supplies effects a coordinated sharing of both load current and operating temperature across the set of supplies. Temperature sharing includes monitoring and controlling distribution of operating temperatures across the set of supplies to reduce undesirable temperature imbalance that can cause excessive thermal stress and reduce reliability.

Abstract: Viscosity or rheology measuring instrument utilizing Hall Effect or like magnetic coupling with parts mounted on driving and driven rotational assemblies.

Abstract: A network interface connector includes a plurality of first and second alternating elongate contacts having contact portions situated in a common plane. The first and second contacts have rearward portions situated in respective first and second spaced parallel planes defining a proximity gap between them. A proximity insert having a particular electrical construction suited for a particular application is situated, preferably in a replaceable manner, in the proximity gap to provide the connector with desired transmission properties.

Abstract: A fan device with air guide function, which contains at least a fan device and is characterized by comprising an air guide frame, wherein the said air guide frame is composed of at least two layers inclined guide which are configured as a symmetrical geometrical shape or at least two layers of arc-overlapped inclined guide which forms a arc-overlapped air guide frame, and are both connected by the securing elements. By the combination of the fan device and both embodiments of the air frame guide, the present invention is applicable to guide the air flow propelled from the fan with a prolonged air path in the space and provides higher air molecule freedom by the effect of more frequent collision which results each loose air molecule has larger surface area existing and moving in the air flow, enables a better indoor air circulation and forms comfortable and nature breeze.

Abstract: A power converter startup circuit establishes an operating voltage for control circuitry during startup and is then disabled to reduce no-load power dissipation. The startup circuit has a normally on characteristic to automatically provide startup charging current for a startup capacitor. The control circuitry begins operating as the startup capacitor voltage reaches an operating value, and it generates an inhibitory signal that disables the startup circuit to stop the startup charging current and reduce power dissipation. The normally on characteristic is achieved by an emitter switched current source employing a normally on device such as a depletion-mode J-FET. A resistor divider network provides both biasing for the startup current source and a point of monitoring the power supply input voltage during steady state operation.

Abstract: The present invention concerns a coating wax for food product, comprising at least one block copolymer formed of at least one block polymer (A) derived from the polymerization of at least two monomers (MA), the same or different, derived from long chain fatty acids, the said long chain comprising 14 to 34 carbon atoms; and of at least one block polymer (B), different from (A), derived from the polymerization of at least two monomers (MB), the same or different, derived from short chain fatty acids.

Abstract: A method for preparing a coated cheese product, includes: a) injecting a cheese material in the viscous state between two coating films, the films being malleable at the storage temperature of the coated cheese product, and each including, on the outer face, at least one external layer of a coating composition C1 in the gelled state, the coating composition including at least one hydrophobic polymer, and b) shaping at least a coated cheese product by pressure on the outer face of each coating film to obtain a coated cheese product including a cheese core including the material and a coating that is malleable at the storage temperature of the coated cheese product and sealed against moisture and microorganisms, and completely surrounds the core at its periphery, the coating being formed by assembly by pressure of the two coating films including at least an outer layer of the coating composition C1.

Abstract: A regulated switching power converter generates a converter output having first and second regulated output values under corresponding operating conditions. The converter output transitions between the first and second output values in response to transition of a trigger signal in a transition window between first and second trigger values. A transition step function is based on transition amplitude, transition interval and number of steps, the transition amplitude being a difference between the first and second regulated output values, and the transition interval being a difference between the first and second trigger values. The transition step function generates a step-like transition signal based on values of the trigger signal between the first and second trigger values. During operation in the transition window, the step-like transition signal is included in the regulation reference value to generate a step-like transition of the converter output between the first and second regulated output values.

Abstract: The present invention is related to a fan device with fluidic air function, wherein the fan device is configured with an air guide frame which provides each air molecule with higher space freedom and surface area existing in the space by more frequent collision and a longer fluidic path. Thus, after propelling from the fan and colliding with the air guide frame by following the swirly blades, the air flow becomes more comfortable and feels like a nature breeze when it touches human skin, and the present invention is applicable in all types of electric fan or any structure blowing the air.

Abstract: A power supply includes signaling circuitry coupled to output terminals for engaging in bidirectional communications with a load. A controller is capable of conducting the bidirectional communications and selecting among different operating modes for the power supply based on the communications. The modes may include a constant-current mode suitable for applications such as battery charging and power LED lamps, and a constant-voltage mode suitable for a variety of conventional uses such as powering electronic circuitry. The signaling circuitry may include a power switching transistor in series with the load, which is pulsed in a binary fashion to transmit communications to the load. A signal-forming resistor in parallel with the power switching transistor develops a signaling voltage monitored by the controller to receive communications from the load.

Abstract: A power converter startup circuit establishes an operating voltage for control circuitry during startup and is then disabled to reduce no-load power dissipation. The startup circuit has a normally on characteristic to automatically provide startup charging current for a startup capacitor. The control circuitry begins operating as the startup capacitor voltage reaches an operating value, and it generates an inhibitory signal that disables the startup circuit to stop the startup charging current and reduce power dissipation. The normally on characteristic is achieved by an emitter switched current source employing a normally on device such as a depletion-mode J-FET. A resistor divider network provides both biasing for the startup current source and a point of monitoring the power supply input voltage during steady state operation.

Abstract: A power supply system includes a digital power manager and multiple power blocks each conveying regulated power to a respective load. The power blocks include the power part of non-isolated DC/DC converters, signal sampling and conversion circuits to provide analog voltage signal representing output voltage, output current, temperature, etc., and driving circuits to receive pulse width modulation (PWM) signals and drive switching devices. Closed-loop voltage control and protection functions for the power blocks are integrated into the digital power. The digital power manager includes a non-volatile memory containing registers, including a digital power manager configuration register, a power block set-up register, and a power block monitor register, as well as a user-definable space.

Abstract: A regulated switching power converter generates a converter output having first and second regulated output values under corresponding operating conditions. The converter output transitions between the first and second output values in response to transition of a trigger signal in a transition window between first and second trigger values. A transition step function is based on transition amplitude, transition interval and number of steps, the transition amplitude being a difference between the first and second regulated output values, and the transition interval being a difference between the first and second trigger values. The transition step function generates a step-like transition signal based on values of the trigger signal between the first and second trigger values. During operation in the transition window, the step-like transition signal is included in the regulation reference value to generate a step-like transition of the converter output between the first and second regulated output values.

Abstract: A switched-mode power supply in a set of parallel-connected switched-mode power supplies is operated to (1) monitor both output current and operating temperature, and (2) auto-tune an output voltage using two-dimensional control that employs a two-dimensional function of the output current and the operating temperature. The two-dimensional function is a sharing function whose use in each of the supplies effects a coordinated sharing of both load current and operating temperature across the set of supplies. Temperature sharing includes monitoring and controlling distribution of operating temperatures across the set of supplies to reduce undesirable temperature imbalance that can cause excessive thermal stress and reduce reliability.

Abstract: A power supply includes signaling circuitry coupled to output terminals for engaging in bidirectional communications with a load. A controller is capable of conducting the bidirectional communications and selecting among different operating modes for the power supply based on the communications. The modes may include a constant-current mode suitable for applications such as battery charging and power LED lamps, and a constant-voltage mode suitable for a variety of conventional uses such as powering electronic circuitry. The signaling circuitry may include a power switching transistor in series with the load, which is pulsed in a binary fashion to transmit communications to the load. A signal-forming resistor in parallel with the power switching transistor develops a signaling voltage monitored by the controller to receive communications from the load.

Abstract: A packaging includes a first sheet (1), in the form of a receptacle (2) and a second cover sheet (71), for covering the food product (70) and for sealing the receptacle (2). The first sheet (1) is made from a plastic material and the first ends (53a, 53b) of tear-off guide elements are spaced laterally with regard to each other and define a pull tab (58) in a flap (21). The above is of application for example in the cooking of fondue cheese.

Abstract: The present invention relates to a method for flavoring a cheese product by processing at least one initial cheese base, including a stage for the heat and mechanical kneading type treatment of the initial cheese base, after it has been split up, at a temperature T1 of at most 80° C., in order to secure a limited destructuring of the protein network of the initial cheese base, characterized in that at least one flavoring agent, selected from the group constituted by flavor fermenting agents that present an increased enzymatic activity and embrittlement of their cellular wall, flavor fermenting lysates, and amino group accepting compounds, is added to the initial cheese base and/or during the stage above.