摘要:
A candle lamp includes a lamp holder having a storage compartment, the lamp holder has an opening at a top portion. The candle lamp further has a power supply provided inside the lamp holder, a control panel electrically connected to the power supply, a plurality of light sources electrically connected to the control panel. The candle lamp also has a plurality of light guides which generate a continuous line of light toward the opening. The candle lamp further has a plurality of light guides, each of the light guides optically communicate with the corresponding light source so that the continuous line of light propagate toward the corresponding light guide and the line of light is refracted outwardly emitting a glowing light for the candle lamp.
摘要:
A full-cover LED bulb with large-angle illumination includes a lamp cap, a lamp cover, a substrate, an LED driver power supply, at least one LED and at least one heat conducting metal strip, wherein the LED driver power supply is fixedly connected to the substrate and electrically connected thereto; the substrate is fixed to and electrically connected to the lamp cap; the lamp cover is fixedly connected to lamp cap and the lamp cover defines an internal space; the at least one heat conducting metal strip is welded at two ends to substrate, and each heat conducting metal strip is bent and arches toward the internal space; and the at least one LED is welded to the heat conducting metal strip. In the case of the LED bulb with the structure, the irradiation capability of all LEDs is maximized, the irradiation angle is large, and the brightness is uniform.
摘要:
A power amplifier includes an input transistor, an input bias circuit, an output transistor, and a power down circuit. The input transistor includes a gate, a drain, and a source, wherein the source of the input transistor is coupled to a supply voltage return and the gate of the input transistor is operably coupled to receive an outbound radio frequency (RF) signal. The input bias circuit is operably coupled to provide an enabling bias voltage to the gate of the input transistor during transmit mode and to provide a disabling bias voltage to the gate of the input transistor during power down mode. The output transistor includes a gate, a drain, and a source, wherein the drain of the output transistor is coupled to provide an output of the power amplifier and the source of the output transistor is coupled to the drain of the input transistor. The power down circuit is operably coupled to provide an output enabling bias voltage to the gate of the output transistor during the transmit mode and to provide an output disabling bias voltage to the gate of the output transistor during the power down mode, wherein the output disabling bias voltage is of a value to distribute gate oxide stress between the input transistor and the output transistor.
摘要:
A power amplifier includes an input transistor, an output transistor, and circuitry. The input transistor includes an input, a first node, and a second node, wherein the second node of the input transistor is coupled to a supply voltage return and the input of the input transistor operably coupled to receive an outbound radio frequency (RF) signal. The output transistor includes an input, a first node, and a second node, wherein the first node of the output transistor is coupled to provide an output of the power amplifier, the second node of the output transistor is coupled to the first node of the input transistor. The circuitry is operably coupled to provide an enabling bias voltage to the input of the input transistor and to the input of the output transistor during the transmit mode and to provide a disabling bias voltage to the input of the input transistor and to the input of the output transistor during the power down mode, wherein the disabling bias voltage is of a value to distribute gate oxide stress between the input transistor and the output transistor.
摘要:
A modular power supply which distributes responsibility for supplying current to a load among two or more power supply modules having a common output node. One of the power supply modules which supplies the lowest level of current to the load functions as the master while the remaining power supply modules each function as a slave. A load share bus which interconnects all the power supply modules is driven by the master with a signal representative of the level of current supplied by the master. Each slave module attempts to reduce its output current to a level which is a predetermined offset above the level of current supplied by the master while a regulated voltage is maintained at the common output node. Any one of the modules can become the master, though once the system is operating, the predetermined offset generally prevents the roles from changing. Should one of the power supply modules fail such that its output current is uncontrolled, this power supply module will not be the master. According to an aspect of the invention, a power supply module can be inserted when there are already other power supply modules present and actively supplying power to the load. According to another aspect of the invention, rather than providing a common load share bus, a plurality of power supply modules are cascaded in a line, a loop a tree. Each module, however, supplies power to a load via a common output terminal.
摘要:
A retaining ring includes a generally annular body having an inner surface to constrain a substrate and a bottom surface, the bottom surface having a plurality of channels extending from an outer surface to the inner surface, and a plurality of islands separated by the channels and providing a contact area to contact a polishing pad, wherein the contact area is about 15-40% of a plan area of the bottom surface.
摘要:
A method and system for finding a source failure node in a traceable network. The method includes: determining a possible source failure node according to a leaf node that has an exception, wherein the possible source failure node is a node that is most likely to cause the exception; selecting a target node to receive an investigation result corresponding to the target node, wherein the investigation result indicates whether the target node has the same exception; receiving the investigation result corresponding to the target node and updating the traceable network according to the investigation result; and returning to the step of determining a possible source failure node, if it can not be verified according to the updated traceable network that the possible source failure node is the source failure node causing the exception.
摘要:
The present invention provides a vesicle having a unilamellar bilayer including a lipid and a second bilayer component selected from a membrane protein or a functionalized lipid. The vesicle also includes a component encapsulated by the unilamellar bilayer, wherein the encapsulated component includes a protein, a peptide, an enzyme, an oligonucleotide, or a polynucleotide. Also included are methods of making the vesicles of the present invention.
摘要:
An outdoor television antenna includes VHF antenna elements, UHF antenna elements, reflector elements that are adapted to reflect broadcast signals, a rotation unit having a motor-fixed bolster and a main pole column, an antenna circuit that collects the VHF broadcast signals and the UHF broadcast signals and provides electric power to the rotation unit, a main body that supports the VHF antenna elements, the UHF antenna elements, the reflector elements and the motor-fixed bolster, and encloses the antenna circuit, a control unit that that relays the VHF and UHF broadcast signals and sends electric power to the antenna circuit, a remote controller that sends rotation control signal to the control unit, and a conductive cable that connects the control unit and the antenna circuit. The control circuit controls rotation of the rotation unit in response to the rotation control signal and the motor-fixed bolster rotates the main pole column with electric power delivered through the conductive cable.