Abstract:
An AC-to-DC power supply apparatus and a power control structure and method thereof are provided. The provided method includes: making an AC-to-DC converter in the AC-to-DC power supply apparatus convert an AC input voltage in response to a driving signal, so as to generate a DC output voltage; sampling a rectified voltage relating to the AC input voltage, so as to provide a sampling signal; providing an output feedback signal relating to an output of the AC-to-DC converter; multiplying the sampling signal by the output feedback signal, so as to provide a product signal; performing a signal modulation on the product signal, so as to generate the driving signal to control a switching of a main power switch in the AC-to-DC converter; and performing an amplitude-limiting process on the sampling signal or the product signal.
Abstract:
A flexspline protective structure includes a first rotation member, a second rotation member and a plurality of fixing members. The second rotation member is sleeved on the first rotation member. The plurality of fixing members fix the first rotation member and the second rotation member together and are capable of breaking off in the event of jamming or other mischance to enable the second rotation member to rotate freely relative to the first rotation member. The disclosure presents a robot arm mechanism equipped with the flexspline protective structure.
Abstract:
Display ground plane structures may contain slits. Image pixel electrodes in the display may be arranged in rows and columns. Image pixels in the display may be controlled using gate lines that are associated with the rows and data lines that are associated with the columns. An electric field may be produced by each image pixel electrode that extends through a liquid crystal layer to an associated portion of the ground plane. The slits in the ground plane may have a slit width. Data lines may be located sufficiently below the ground plane and sufficiently out of alignment with the slits to minimize crosstalk from parasitic electric fields. A three-column inversion scheme may be used when driving data line signals into the display, so that pairs of pixels that straddle the slits are each driven with a common polarity. Gate line scanning patterns may be used that enhance display uniformity.
Abstract:
A speed reducing mechanism includes a speed reducer and a bearing engaged with the speed reducer. The speed reducer includes a driving member, a first transmission member and a second transmission member. The driving member is connected to the first transmission member. The first transmission member forms a plurality of first engaging teeth, and the second transmission member forms a plurality of second engaging teeth. The total number or count of the first engaging teeth is different from that of the second engaging teeth. The bearing includes a bearing cone, a bearing cup, and roller bearings mounted between the bearing cone and the bearing cup. The first transmission member is fixed to the bearing cup, and the second transmission member is fixed to the bearing cone.
Abstract:
An AC-to-DC conversion apparatus is provided, and which includes a first switch-element, an output capacitor and a bridgeless power-factor-correction (PFC) circuit. The bridgeless PFC circuit is coupled to an AC input, and includes a first inductor, a second inductor and a bridge circuit constructed by second to fifth switch-elements. The first switch-element is connected between bridgeless PFC circuit and the output capacitor. Under such circuit configuration and suitable control manner, the common-mode interference in the provided AC-to-DC conversion apparatus is lowered and thus reducing the power loss.
Abstract:
File folder transmission in instant messaging may be implemented by an instant receiving client, which receives information of a file folder and information of each file in the file folder. The instant receiving client may display the information of the file folder and the information of each file in the file folder. In some embodiments, the instant receiving client may further receive selection information inputted by a user, and receive the files in the file folder that correspond to the selection information from an instant sending client. Such file folder transmission in instant messaging can efficiently save network resources within a process of file folder transmission.
Abstract:
Disclosed are compounds of Formula 1, N-oxides, and salts thereof, wherein X is O or S; Y is O or S; A is O, S, NR3e or C(R3c)═C(R3d); Z is a direct bond, O, S(O)n, NR6, C(R7)2O, OC(R7)2, C(═X1), C(═X1)E, EC(═X1), C(═NOR8) or C(═NN(R6)2); a is 1, 2 or 3; and R1, R2, R3a—R3e, R4, R5, R6, R7, R8, X1 and E are as defined in the disclosure. Also disclosed are compositions containing the compounds of Formula 1 and methods for controlling an invertebrate pest comprising contacting the invertebrate pest or its environment with a biologically effective amount of a compound or a composition of the invention.
Abstract:
A system and method for visually depicting component states in a computing system. A graphical analysis tool includes a graphical user interface for use in viewing the history of a selected component. A user selects a system component for viewing and then using a timeline “drags” the state of the selected component to various points on the timeline in order to view states of the component at the selected point in time. States of the selected component may also be played forward or backward in a continuous manner. Logging agents in the system are configured to log data corresponding to detected events and forward the log data to a central repository. The analysis tool may access the data in the repository for use in creating visual displays. Point-in-time snapshots of a component may also be stored in the central repository and used to reproduce the history.
Abstract:
A palletizing robot includes at least one rotatable pallet; a crane comprising a rotary base, a lifting frame fixed on the rotary base, and an extensible mechanical hand slidably engaged to the lifting frame to grasp a good; and a controller. The controller controls the crane and the at least one rotatable pallet to cooperatively stack the goods on the rotatable pallet, and control the at least one rotatable pallet to rotate itself to package the stacked goods.
Abstract:
An electrical power system may comprise a main generator with a rotor having field windings and at least one embedded permanent magnet. A generator control unit (GCU) may be connected to receive excitation current produced by the main generator with flux from the at least one permanent magnet. An exciter generator may be connected to be provided with excitation from the GCU. The exciter generator may provide excitation current to the field windings of the main generator. The main generator may produce output current from flux from the field windings and the at least one permanent magnet.