摘要:
Over-temperature protection devices, over-temperature applications on substrates, such as printed circuit boards, and over-temperature protection circuits, e.g., over-temperature protection in combination with a fuse or heater are provided. In various embodiments a shape memory alloy member is used, which can either break electrical contact with a conductor (open a circuit) or make electrical contact with a conductor (close a circuit). Upon opening a first circuit, the member can move to contact another conductor and complete a second circuit. The member can close a circuit, which is in parallel with a fused load, to provide a short circuit path that opens a fuse upon an over-temperature condition occurring, e.g., within an electrical device such as a cell phone or battery. Or, the member can be provided in parallel with a heater that energizes upon an overcurrent condition, triggering the member to open a circuit.
摘要:
A subminiature circuit protector includes a plurality of layers of ceramic material in a laminate structure, each layer bearing a fuse element. The ends of laminate structure are coated with electrically conductive end terminations. The fuse elements of the layers may be connected in parallel, with fuse elements on each layer connecting to both end terminations, or interconnected in series from one end termination to the other. Each of the fuse elements of the individual layers may comprise two or more individual fuse elements connected in series or in parallel. A method for manufacturing the circuit protector in accordance with the invention includes the steps of printing a multiplicity of fuse elements on a plurality of substrates, stacking the substrates to form a laminate structure, cutting the laminate into individual units, and coating the opposite ends of the units with electrically conductive material to form end terminations.
摘要:
The instant application provides methods and related compositions pertaining to novel HIV envelope proteins. In some embodiments, the invention relates to methods and compositions for the preparation, production, and administration of isolated novel HIV envelope nucleic acid and protein sequences suitable, for example, as vaccines against HIV.
摘要:
A circuit protection device includes a conductive layer which is connected to first and second terminals. A spring is electrically connected to the first and second terminals. When an over-voltage or over-temperature condition occurs within a charging circuit, one or more heat generating resistive elements melts material associated with one or more of the ends of the spring thereby releasing the spring to create an open circuit.
摘要:
A circuit protection device includes a conductive layer which is connected to first and second terminals. A spring is electrically connected to the first and second terminals. When an over-voltage or over-temperature condition occurs within a charging circuit, one or more heat generating resistive elements melts material associated with one or more of the ends of the spring thereby releasing the spring to create an open circuit.
摘要:
A gas-filled surge arrester includes at least two electrodes, a gas filling and an activating compound applied to at least one of said electrodes. The activating compound can include: (i) nickel powder in an amount of about 10% to about 35% by weight; (ii) potassium or sodium silicate in an amount of about 20% to about 40% by weight; (iii) titanium powder in an amount of about 5% to about 25% by weight; (iv) calcium titanium oxide in an amount of about 5% to about 15% by weight; and (v) sodium bromide in an amount of about 10% to about 20% by weight. Ignition striping process and resulting stripes from ink-jetting of striping material are disclosed.
摘要:
A system, method, and computer-readable storage medium configured to locate and send content to a consumer based on the consumer's interest in certain products or services.
摘要:
A system, method, and computer-readable storage medium configured to enable the transportation of interaction point data in a dynamic analytics network. A transport node registers a Service Location Protocol service message with a distribution daemon via a network interface. The message includes a data point identifier. When the transport node receives a data point from the distribution daemon, it uses its processor to determine whether the data point correlates with an identifier entry. The transport node forwards the data point to a storage node identified within the identifier entry when the data point correlates with an identifier entry.
摘要:
A circuit protection device includes a conductive layer which is connected to first and second terminals. A spring is electrically connected to the first and second terminals. When an over-voltage or over-temperature condition occurs within a charging circuit, one or more heat generating resistive elements melts material associated with one or more of the ends of the spring thereby releasing the spring to create an open circuit.
摘要:
A circuit protection device includes a fuse element placed in parallel with a PTC thermistor layer. The element and PTC thermistor layer are provided on one or more insulating substrate, such as an FR-4 or polyimide substrate. First and second conductors connect the fuse element and PTC thermistor layer electrically in parallel, such that current (i) initially under normal flows mainly through the fuse element and PTC thermistor layer at a lower drop in voltage and (ii) after an opening of the fuse element flows under normal operation through the PTC thermistor layer at a higher drop in voltage.