摘要:
Apparatus for generating a motion control algorithm for the control of an AC electric machine, the apparatus comprising a motion control engine comprising a motion control sequencer, a motion control program memory, a port memory, a plurality of motion control modules, and a plurality of motion peripheral modules, the motion control sequencer executing a sequence of instructions stored in the motion control program memory directing the sequencer to execute motion control modules and motion peripheral modules in a specified sequence and with a specified connection of module inputs and module outputs and operational parameters stored in the port memory to generate the motion control algorithm. A microcontroller may be coupled to the motor control program memory and the port memory for monitoring the output of the motion control engine.
摘要:
The invention relates to a less costly zoom lens that can offer a sensible tradeoff between size reductions and high zoom ratios with a well-kept image quality, and that lends itself to an electronic imaging device such as a CCD or CMOS. The zoom lens comprises a positive first lens group G1, a negative second lens group G2, a positive third lens group G3 and a positive fourth lens group G4, wherein zooming is implemented by changing the space between adjacent lens groups. The first lens group G1 comprises one positive lens, the second lens group G2 comprises two lenses, and the fourth lens group G4 comprises one positive lens. The zoom lens satisfies condition (1) needed for making sure an ideal situation for the zoom ratio and low costs and condition (2) needed for the first lens group to comprise a minimum one lens and to hold back chromatic aberration of magnification as much as possible.
摘要:
An electromagnetic wave suppressing sheet according to the invention is a sheet including a magnetic powder and an insulating material. A real part of a permittivity in an in-plane direction of the sheet is about 200 or more, and an imaginary part thereof is about 25 or more. Accordingly, it is possible to obtain an electromagnetic wave absorbing sheet which exhibits an excellent electric wave absorption characteristic in which an absorption amount of electromagnetic waves is large in an in-plane direction of the sheet.
摘要:
An SD card interface, which is an interface for a detachable SD card requiring an access in sector units (a specific size), has a function to initialize an SD controller, a function to initialize an SD card, and a function to acquire status of the SD card.
摘要:
The present invention provides a home-use insecticide formulated as an insect knockdown agent and insect killing agent that contains a useful pyrethroid compound having superior residual efficacy. The home-use insecticide contains (d)-2-methyl-4-oxo-3-(2-propynyl)-2-cyclopenten-1-yl (d)-trans-2,2-dimethyl-3-(2,2-dichlorovinyl)cyclopropanecarboxylate as an active ingredient thereof.
摘要:
The invention relates to a less costly zoom lens that can offer a sensible tradeoff between size reductions and high zoom ratios with a well-kept image quality, and that lends itself to an electronic imaging device such as a CCD or CMOS. The zoom lens comprises a positive first lens group G1, a negative second lens group G2, a positive third lens group G3 and a positive fourth lens group G4, wherein zooming is implemented by changing the space between adjacent lens groups. The first lens group G1 comprises one positive lens, the second lens group G2 comprises two lenses, and the fourth lens group G4 comprises one positive lens. The zoom lens satisfies condition (1) needed for making sure an ideal situation for the zoom ratio and low costs and condition (2) needed for the first lens group to comprise a minimum one lens and to hold back chromatic aberration of magnification as much as possible.
摘要:
It is an object of the present invention to provide an excellent image reading apparatus that realizes miniaturization and reduces a total reading time at the time of reading a transparent original and, in addition, improves operability. In order to attain this object, since the image reading apparatus has a configuration in which a light source driving circuit section is disposed to overlap in the upward direction separating from an original mounting surface of a surface light emitting section, an area occupied by the light source driving circuit section and the surface light emitting section on a horizontal surface becomes small and miniaturization can be realized. In addition, since the light source driving circuit section and the surface light emitting section can be disposed in a position close to a hinge section altogether, the center of gravity of an FAU is moved to the hinge section side, and rotatability of the hinge section becomes easy and is improved. Since an image reading unit has its hinge section side as an HP, a time taken by the image reading unit for moving from the HP to below the surface light emitting section, where a transparent original is disposed at the time of starting to read the transparent original, can be reduced.
摘要:
An evaluation apparatus of optical parts has a holder having a frame which can hold a lens fixedly and another lens movably, a chart having a first transmission hole group and a second transmission hole group arranged on circumferences of concentric circles, a light source which irradiates the chart with a luminous flux, a CCD camera for picking up an image of the luminous flux transmitted through the first and second transmission hole groups, a processor, and a driving unit. By using a result picked up by the CCD camera, the processor computes coordinates of a center of each circle, on a circumference of which the luminous flux is imaged, and then it calculates an amount movement for the movably held lens by computing a distance between the respective centers of the circles. The driving unit moves the lens on the basis of this calculated amount of movement.
摘要:
A gate driver for a power switch, comprising a gate drive circuit coupled to the gate of the power switch for at least one of turning on and turning off the power switch; a gate voltage control circuit in the gate drive circuit for controlling a voltage applied to the gate of the power switch during at least one of turning on and turning off the power switch; and a signal supplied to the gate voltage control circuit indicative of a voltage rate of change per unit time to be applied in at least one of turning on and turning off the power switch.
摘要:
A multiple axis servo control implements a multi-tasking PWM control unit to provide PWM signals for multiple axes in a single unit. A time slice mechanism provides axis selection signals based on a system clock signal to permit control parameters of the selected axis to be processed to control the selected motor drive axis. The single unit PWM control mechanism eliminates complex and costly multiple axis networks typically associated with independent servo motor controls for each axis in a multi-axis system. A single PWM unit implementation also permits the reduction of components for closed loop current control and closed loop velocity control in the multi-axis servo control system.