142results about How to "Reduce the number of wiring" patented technology

The invention relates to a secondary wiring device for test of characteristics of a current transformer, which belongs to the field of electric system detection. One end of a double-pole double-throw switch is connected with a wiring terminal, the other end of the double-pole double-throw switch can be arranged at a test terminal or a short-circuit terminal, the wiring terminal is connected with a wire led out of a secondary winding of the current transformer, and the short-circuit terminal is grounded. The switch between a switch-on test state and a short circuit grounding state can be accomplished without wiring. The frequency of wiring and wire changing is reduced largely, and the test work is simplified. As the double-pole double-throw switch can only be in the switch-on test state or the short circuit grounding state, the potential safety hazard of a secondary open circuit of the transformer is eliminated.

The invention discloses a measuring apparatus of multichannel S parameter. The measuring apparatus of multichannel S parameter is arranged between a double port vector network analyzer and a device tobe measured for measuring the device with a plurality of ports, wherein when the number of the ports is an even number, the measuring apparatus of multichannel S parameter includes two single-pole N-throw switches and N double-pole double-throw switches DPDT and N>=2; when the number of the ports is an odd number, that is, the number of the ports is 2N+1, the measuring apparatus of multichannel Sparameter includes one single-pole N-throw switch, a single-pole N+1-throw switch and N double-pole double-throw switches DPDT; each double-pole double-throw switch includes two channels; the single-pole N-throw switch includes N input ports and one output port; the output port of the single-pole N-throw switch is connected with one port of the double port vector network analyzer; each input portof the single-pole N-throw switch is connected with one channel of the corresponding double-pole double-throw switch DPDT; and the input port of the channel is connected with one port of the device to be measured. The measuring apparatus of multichannel S parameter is simple in structure and low in cost.

A display includes a display layer, a shutter layer, and a backlight module. The display layer includes a first liquid crystal layer, a plurality of first pixel electrodes, and a color filter layer, wherein the first pixel electrode and the color filter layer are respectively located on opposite sides of the first liquid crystal layer, or the first pixel electrode and the color filter layer are respectively located on the same side of the first liquid crystal layer. The shutter layer includes a second liquid crystal layer, a plurality of second pixel electrodes and a common electrode layer, and the second liquid crystal layer is interposed between the second pixel electrode and the common electrode layer, wherein the shutter layer are segmented into a plurality of dimming regions. The potentials of the second pixel electrodes in the dimming regions are the same. The backlight module provides light to the shutter layer and the display layer, and the shutter layer and the display layer are respectively located on the same side of the backlight module.

The invention provides an inverter device, including a bridge circuit composed of a plurality of bridged semiconductor switch members; a drive unit having an upper arm photocoupler and a lower arm photocoupler respectively outputting drive signals for turning on and off upper and lower arm semiconductor switch members of the bridged circuit; and a control unit including a drive signal generating circuit for generating the drive signal and supplying the drive signal to upper and lower arm photocouplers, wherein the control unit includes an upper arm shutdown circuit and a lower arm shutdown circuit which individually shutdown the drive signals of the upper and lower arm semiconductor switch members in accordance with shutdown signals input from the exterior, and the shutdown circuits carry out a shutdown operation in accordance with the shutdown signals, which have mutually inverted logics.

Disclosed is a display device which achieves low power consumption without causing deterioration of an aperture ratio. A pixel circuit (2) is provided with: an internal node (N1) which holds a pixel data voltage applied to a display element section (21); a first switch circuit (22) which transfers, to the internal node (N1), a pixel data voltage supplied from a data signal line (SL) via at least a switch element (T4); a second switch circuit (23) which transfers, to the internal node (N1) not via the switch element (T4), a voltage supplied to a predetermined voltage supply line (VSL); and a control circuit (24) which holds, on one end of a first capacitive element (C1), a predetermined voltage that corresponds to the pixel data voltage held by means of the internal node (N1), and controls conduction / non-conduction of the second switch circuit (23).

A fuel injection valve has an injector body (4z) having formed in it high-pressure paths (6az, 6bz, 6cz) that allow high-pressure fuel to flow to a nozzle and receiving a piezo actuator (2z)(drive means) etc. for operating a needle (valve element) to open and close the nozzle; a fuel pressure sensor (50z) mounted on the body (4z) and detecting the pressure of the high-pressure fuel; a senor terminal (55z) for externally outputting the detected pressure value obtained from the fuel pressure sensor (50z); a drive terminal (56z) to which electric power for the piezo actuator (2z) is supplied; and a connector housing (70z) for holding the sensor terminal (55z) and the drive terminal (56z). The sensor terminal (55z), the drive terminal (56z), and the connector housing (70z) form a single connector.

Provided is a thin film transistor which has an off-state current reduced to an extremely low level, and has an outstanding reliability, and is preferably applicable to a pixel driver of a super high definition indicator, peripheral circuits or the like, to provide an active matrix substrate provided with the thin film transistor, and to provide a display. Thin film transistor comprises a semiconductor layer 42 provided on a substrate main body 10a, a gate electrode 32, a drain electrode 17, and a source electrode 16. The semiconductor layer 42 is connected with the drain electrode 17. It is so constituted that there are provided a high concentration drain region 1e where impurity is heavily diffused, a low concentration drain region 1c provided at the gate electrode 32 side of the high concentration drain region 1e where the impurity is lightly diffused, and a region provided at the gate electrode 32 side of the low concentration drain region 1c where the impurity is diffused in a minute amount concentration, or alternatively an offset region 1a2 set as an intrinsic semiconductor region.

An apparatus executes wire layout design in an integrated circuit. The apparatus includes a logic cell arrangement information acquisition unit which acquires information concerning a logic cell arrangement on a chip, a wire-grouping unit which estimates wires between logic cell terminals based on the acquired information and groups the estimated wires into each wire layer region, a via setting unit which sets via wire for pulling a logic cell terminal up to a wire layer region, a wire information extraction unit which extracts wire information for each of the wire groups and a routing execution unit which executes routing between the logic cell terminals for each of the wire layer regions based on the extracted information. A method for executing wire layout design in an integrated circuit includes acquiring information concerning a logic cell arrangement on a chip, executing wire-grouping, setting via wire for pulling a logic cell terminal up to a wire layer region, extracting wire information for each of the wire groups, and executing routing between the logic cell terminals for each of the wire layer regions based on the extracted information. The wire-grouping contains estimating wires between logic cell terminals based on the acquired information concerning the logic cell arrangement and dividing the estimated wires into each group of a wire layer region.

The invention provides a wiring device and a current mutual inductance testing system. The wiring device comprises an input unit, an output unit and a select switch unit, wherein the input unit is electrically connected with a relay protection three-phase tester; the output unit is electrically connected with the A phase, B phase and C phase of a current mutual inductor; the select switch unit isrespectively connected to the input unit and the output unit and used for receiving test current from the relay protection three-phase tester and selectively outputting the test current to the A phase, the B phase or the C phase by means of the output unit. According to the invention, the wiring times and the possibility of working errors can be reduced, the working efficiency is improved, the labor intensity is lowered, the power failure time caused by test wiring can be shortened, and the power supply reliability is improved.

The invention provides a device for monitoring and balancing storage battery voltage. The device for monitoring and balancing the storage battery voltage comprises multiple monitoring and balancing units, a digital-analog acquisition chip and a central processing unit, wherein each monitoring and balancing unit is correspondingly connected with a storage battery cell and is also connected with the digital-analog acquisition chip and the central processing unit, and the digital-analog acquisition chip is connected with the central processing unit. The voltage signal of each storage battery cell is transmitted to the digital-analog acquisition chip to be calculated through the monitoring and balancing unit connected with the storage battery cell, the average voltage of the whole storage battery pack is calculated through the central processing unit after analog-digital conversion is conducted on all the voltage signals, different control signals are output to the corresponding monitoring and balancing units according to the comparison results obtained by comparing the voltages of the storage battery cells with the average voltage of the whole storage battery pack, and then control over the working states of the storage battery cells connected with the monitoring and balancing units is achieved. According to the device for monitoring and balancing the storage battery voltage, both the storage battery voltage monitoring function and the voltage balancing function are achieved, the service life of each storage battery cell is prolonged, the service life of the whole storage battery pack is prolonged, and the reliability of a backup direct-current power supply of a transformer substation is guaranteed.

The invention relates to the transmission field of mechanical electrical equipment and provides a rotary anti-winding device. The rotary anti-winding device comprises a spindle (7) arranged on a rack in a penetrating mode and N idler wheels (15), wherein the N idler wheels (15) are arranged at the periphery of the spindle (7) and driven by N idler wheel motors (13) respectively; a shaft sleeve A and a shaft sleeve B are coaxially fixed on the spindle (7) in an insulated mode and a section of conductive coil (5) is wound on the shaft sleeve A or the shaft sleeve B and the shaft sleeve A or theshaft sleeve B is connected with one pole of each power line of the N idler wheel motors (13) respectively; N sections of conductive coils are wound on the other shaft sleeve uniformly at intervals in a periphery direction; the N sections of conductive coils are connected with the other pole of each power line of the N idler motors (13) respectively; and two V-shaped clamping conductive clips (8 and 9) clamp and contact with one section of conductive coil or the N sections of conductive coils respectively and are connected with two electrodes of a power supply respectively. The rotary anti-winding device is simple in structure, decreases the number of transmission wires of an idler wheel motor of a robot, improves the reliability of the robot in the operation process, reduces the use costof the robot and ensures the complicated signal transmission of the robot.

The invention is applied to the field of touch screens, and provides a touch screen system in DDC (Display Data Channel) communication with a computer and a control method thereof. The system comprises a host machine, a display interface, a display, a touch screen controller and a touch screen, wherein an IIC (Inter-Integrated Circuit) data transmission line of the touch screen controller is connected to a DDC of the display; when being touched, the touch screen can transmit detected information corresponding to an X coordinate axis and a Y coordinate axis to the touch screen controller, and the touch screen controller is used for converting the information of the X coordinate axis and the Y coordinate axis to position information of a touch point and storing to a register of a corresponding IIC interface; and the host machine acquires data in the register of the IIC interface, converts the data, and displays a touch position on the display or provides the position information of the touch point to other application programs. According to the invention, the communication between the host machine and a USB (Universal Serial Bus) interface of the touch screen controller is omitted, the quantity of wires for connecting the display with the host machine is reduced, the usage quantity of IC (Integrated Circuit) components can be reduced, a design is simplified, and the cost is reduced.

A liquid ejecting apparatus for ejecting droplets by driving heat generating elements includes an electrical current source configured to output temperature measurement current; a plurality of head chips, each having a heat generating element, a temperature sensor whose resistance value changes with temperature, a switch circuit that connects the temperature sensor to the electrical current source, and a switch-circuit control circuit configured to control the switch circuit; and a heat-generating-element control circuit configured to measure temperatures of the plurality of head chips and controlling the driving of the heat generating elements via an end of the electrical current source on the temperature sensor side.; The temperature sensors of the plurality of head chips are sequentially and selectively connected to the electrical current source by the switch circuits of the plurality of head chips, and the temperatures of the plurality of head chips are measured by the heat-generating-element control circuit.

The invention discloses a handheld printer, and relates to the technical field of printers. The handheld printer comprises a machine shell, an ink box, a main roller, a main control board and an FPC device, wherein the FPC device comprises a flexible circuit board; the main control board and the flexible circuit board are both arranged in the machine shell, the ink box can be placed inside the machine shell, the flexible circuit board is electrically connected with the main control board, and the flexible circuit board can be electrically connected with the ink box; a printing driving module,a position sensor module and an ink box recognition module are integrated on the flexible circuit board; and the main roller is connected with the machine shell, the main roller is connected with a magnet, and the magnet is opposite to a Hall element inside the position sensor module. According to the handheld printer, the printing driving module, the position sensor module and the ink box recognition module are integrated on one flexible circuit board, so that the space utilization rate is improved, the wiring number can be reduced, the assembly complexity is reduced, and the production efficiency is improved.

The invention discloses a vehicle electrical accessory control system, a control circuit and a vehicle. The system comprises at least one electrical accessory, wherein the at least one electrical accessory comprises at least one of the following: a power-assisted steering oil pump motor, an air compressor air pump motor and a battery; an overall controller connected to each electrical accessory for controlling the conversion of a direct current provided by a power battery on an electric vehicle into a corresponding working current of each electrical accessory, wherein the working current comprises at least one of the following: a first working current for the power-assisted steering oil pump motor, a second working current for the air compressor air pump motor, and a third working currentfor the battery. The invention solves the technical problems of a large number of circuits and interfaces of the electric vehicle due to that each electric vehicle accessory adopts a separate controller for control in the existing electric vehicle accessory system.