1551 results about "Resistance capacitance" patented technology

The present invention generally provides an apparatus for processing a surface of a substrate in a physical vapor deposition (PVD) chamber that has a sputtering target that has separately biasable sections, regions or zones to improve the deposition uniformity. In general, aspects of the present invention can be used for flat panel display processing, semiconductor processing, solar cell processing, or any other substrate processing. In one aspect, each of the target sections of the multizone target assembly are biased at a different cathodic biases by use of one or more DC or RF power sources. In one aspect, each of the target sections of the multizone target assembly are biased at a different cathodic biases by use of one power source and one or more resistive, capacitive and/or inductive elements. In one aspect, the processing chamber contains a multizone target assembly that has one or more ports that are adapted deliver a processing gas to the processing region of the PVD chamber. In one aspect, the processing chamber contains a multizone target assembly that has one or more magnetron assemblies positioned adjacent to one or more of the target sections.

This invention is characterized to include a discrete analysis frequency width change specifying process for specifying in a particular frequency range a change in the discrete high-speed Fourier transform (FFT) analysis frequency width and a modeling process for allocating different discrete FFT analysis frequency widths to the specified frequency range and to a frequency range other than the specified frequency range and performing modeling. The EMI analysis method of this invention reflects on the gate level power supply current calculation the influence of decoupling by resistance, capacitance and inductance of the power supply and ground, thereby making it possible to evaluate the EMI of LSIs in simulation in a realistic time and to provide efficient EMI countermeasures through supporting the identifying of the EMI causing locations.

The invention relates to a multi-region detection system for the partial discharge decomposition components of insulating gas and a method thereof, which belong to the technical field of on-line gas-insulated equipment insulation monitoring. The system comprises a voltage regulator, an isolation transformer, a corona-free test transformer, a partial discharge-free protective resistor, a capacitive divider, an insulating gas discharge decomposition device, an ultrahigh-frequency antenna, an oscillograph, a gas chromatograph-mass spectrometer and the like, and the insulating gas discharge decomposition device comprises a housing, insulating sleeves, connecting rods, electrodes, valves, a vacuum meter, a gas pressure meter, a vacuum pump, an SF6 gas bottle, a pure compressed air bottle and the like. The method utilizes the system to respectively detect the discharge decomposition components of multiple regions in the insulating gas discharge decomposition device. The invention can accurately detect the components and component contents of the decomposed gas of a main gas chamber, a glow discharge region and an electron drift region and provide a standard. The invention can be widely applied to the on-line monitoring of gas-insulated equipment insulation, in particular to the on-line monitoring of GIS (gas-insulated switchgear) insulation.

A slab laser includes two elongated electrodes arranged spaced apart and face-to-face. Either one or two slabs of a solid dielectric material extend along the length of the electrodes between the electrodes. A discharge gap is formed either between one of the electrodes and one dielectric slab, or between two dielectric slabs. The discharge gap is filled with lasing gas. A pair of mirrors is configured and arranged to define a laser resonator extending through the gap. An RF potential is applied across the electrodes creating a gas discharge in the gap, and causing laser radiation to circulate in the resonator. Inserting dielectric material between the electrodes increases the resistance-capacitance (RC) time constant of the discharge structure compared with the RC time constant in the absence of dielectric material. This hinders the formation of arcs in the discharge, which enables the laser to operate with higher excitation power, higher lasing gas pressure, and higher output power than would be possible without the dielectric inserts.

The invention provides a lithium iron phosphate battery modeling and SOC estimating method in account of capacity loss. The method is provided based on the facts that the working state of the existing lithium iron phosphate battery is influenced by many factors of temperature, current, cycle times, depth of discharge and the like, and thus the modeling process is very complicated. According to the method, based on the Thevenin equivalent circuit, the modeling work is conducted on the lithium iron phosphate battery; the model open-circuit voltage, resistance and capacitance value identification method are given; and the capacity loss of the lithium iron phosphate battery in the life cycle is taken into account; a capacity estimation mathematical model is established; the output precision of a lithium iron phosphate battery model is improved; and the lithium iron phosphate battery SOC estimating problem brought by uncertainty noise is solved with extended Kalman filtering (EKF) algorithm. The method has the advantages of being simple, scientific and reasonable, high in application value, good in effect and the like.

The invention discloses a test circuit for automatically testing the avalanche voltage of avalanche photodiodes and a method. The test circuit comprises a boost power chip with a current detector and a boost controller for providing bias voltage and current for an avalanche photodiode; a microcontroller with three internal analogue converters for adjusting and sampling the bias voltage and current; four resistance capacitance networks for connecting the internal circuits between the microcontroller and the boost power chip. The three analogue converters of the microcontroller are respectively connected with the feedback input of the boost controller, the bias voltage input of the current detector and the monitor output of the current detector via three resistance capacitance networks. The invention is based on automatic control theory, can automatically adjust safe bias voltage, can judge the avalanche breakdown region by comparing the sampled current value and a preset respected value, and can display the result on a man-machine interface of a microcomputer system, having wide dynamic range, accurate and adjustable output, fast and accurate measurement.

A circuit is provided which protects the measuring input of an impedance tomograph from damage due to overvoltage. A resistor capacitor (RC) series connection is provided as a protective circuit at the measuring input.

An internal structure for a connector with at least a nest-typed positioning seat that is covered with a metallic housing to form a communication connector, and has a connecting board having thereon metallic guide pins and having thereon a circuit board assembly with a resistance-capacitance (RC) element and comprising a first and a second circuit board, each positioning seat is provided between the first and the second circuit boards for receiving coils; connecting lines of the coils are pulled to one side of the seat to connect the assembly, an object of connecting the coils with the circuit board assembly thus is easily attained. Each nest is provided on its periphery with slits of different depths, connecting lines of the coils can be extended through the slits to make electric connecting with the assembly. Thereby a function of wave filtering and abnormal voltage isolating is obtained.

The invention relates to a series capacitor type high-voltage direct current breaker and a control method thereof. The breaker comprises direct current breaker units which are connected in series, and each direct current breaker unit comprises a change-over switch, a switching circuit and an energy consumption device which are connected in parallel. The change-over switch adopts a mechanical switch, and the switching circuit adopts a resistance capacitance branch circuit, and the energy consumption device adopts a lightning arrester. The high-voltage direct current breaker is connected with a control circuit, and the mechanical switch detects failure current and acts at the T1moment, and transfers the failure current into the resistance capacitance branch circuit. The failure current charges a capacitor, and controls switching-on and switching-off of the mechanical switch. Before the mechanical switch witches off at the T2 moment, charging voltage on two ends of the capacitor throughout is lower than arcing voltage at fractures of the mechanical switch. When the voltage on two ends of the capacitor reaches operation voltage of the lightning arrester, the control circuit controls the lightning arrester to act at the T3 moment so that energy can be released from the lightning arrester. According to the series capacitor type high-voltage direct current breaker and the control method thereof, the mechanical switch does not have electric arc, non-arc breaking off is realized, energy is released through utilization of the lightning arrester, quick extinguishing of the electric arc is realized, and the failure current is cut off.

The invention discloses an array substrate and a manufacturing method thereof and a liquid crystal display. In the array substrate, an additional electrode is formed above a grid line, the additional electrode and the grid line are mutually spaced by virtue of a grid insulating layer, and the additional electrode is electrically connected with a public electrode wire; a pattern of a pixel electrode extends to the upward side of the additional electrode to be overlapped with the additional electrode, and overlapped parts of the pixel electrode, the additional electrode and the public electrodewire form a storage capacitor. According to the invention, two forms of a grid line-based storage capacitor and a public electrode wire-based storage capacitor are combined, storage capacitance can be improved, and influence of the storage capacitor on other display factors is reduced, aperture opening ratio is not reduced as an overlarge public electrode wire area is required, resistance-capacitance delay is shorter, and better display quality can be obtained.

The invention relates to a liquid crystal display driving device. The liquid crystal display driving device comprises a scan driving unit, a data driving unit, a grid line, a data line and a pixel region which is formed by the grid line and the data line, wherein the grid line comprises a grid scanning line and a redundant grid line; the data line comprises a data signal wire and a redundant data line; and the liquid crystal display driving device also comprises a compensating circuit which is connected with the grid line for compensating a grid scanning signal on the grid scanning line to improve voltage delay phenomenon on the grid scanning line. The liquid crystal display driving device provided by the invention can compensate the grid scanning signal through the compensating circuit which is connected with the grid line, so that the influence of overtime of resistance-capacitance (RC) on the rise time and/or the fall time of the grid scanning signal can be reduced, the charging time requirement of a pixel can be fully met, and the charging rate of the pixel is ensured.

The invention discloses a big-power test programmable resonance wave voltage source which is based on superposition principle, the resonance wave voltage source includes three phase commutating bridge, dc-to-ac converter, transformer in series, three phase resistance-capacitance loop and current track control circuit, the three phase commutating bridge is connected with the electricity net via inlet inductance and three switch; the structure of the dc-to-ac converter is three single-phase H bridges, each of which composes four switching tubes IGBT, the big-power test programmable resonance wave voltage source which is based on superposition principle adopts principle of separating base wave and resonance wave, the electricity provides the voltage of base wave, voltage of resonance wave is provided by the resonance wave voltage source, they are combined to make tested equipment get required voltage wave, the resonance wave is generated by controlling the dc-to-ac converter, the control mode can decreases the current in the dc-to-ac converter, and increases the capability of system, it can replace the programmable power source under most conditions.

The invention discloses a multi-converter parallel circulating current restraining method with quick and reactive support. For a single converter, drop control calculation is adopted, and an output reference voltage of the converter is synthesized; resistance-capacitance virtual complex impedance is guided in the output current feedback of the inverter, so that the equivalent output impedance of the converter is of resistance-capacitance performance, wherein capacity component realizes quick and reactive support of the inverter, the resonant vibration between the output impedance of the inverter and the impedance of an electrified wire fence is restricted through resistance component, and fundamental wave circulating currents and harmonic circulating currents are reduced; and through a voltage current control loop, the stability and control precision of a system are further strengthened, and accurate distribution of power is realized. According to the method, the problem that the existing method is not high in power equipartition precision, relatively large in circulating current and relatively large in voltage fluctuation, and the method can be applied to power generation parallel control systems of industrial special power supply and new power supply.

The invention discloses a capacitance detection device and a capacitance detection method. The device comprises a comparator, an integrating capacitor, and an analog-to-digital converter, wherein the comparator is used for comparing voltage so as to control the discharge time of a measured capacitor; the integrating capacitor is used for integrating the discharge charge of the measured capacitor and producing an integrating voltage which has certain relation with the measured capacitor; and the analog-to-digital converter is used for converting the integrating voltage into corresponding digital quantity. The device and the method can realize higher-accuracy high-speed capacitance detection, and can be used for identifying the capacitance in a resistance-capacitance network and detecting the capacitance; and the characteristic can solve the excessive problem in capacitive touch application.

The invention provides a resistance-capacitance (RC) oscillator and a realization method thereof. According to the invention, a reference voltage generating circuit is used for obtaining charge upper limit voltage and a discharge lower limit voltage, and a comparison shaping circuit is used for comparing the charge upper limit voltage and discharge lower limit voltage with the charge and discharge voltages to generate a charge control signal and a discharge control signal to control a charge and discharge capacitor in a charge and discharge circuit to carry out charge and discharge so as to obtain the RC oscillator with more accurate oscillation frequency. The oscillation frequency of the RC oscillator does not depend on the reference offset current but depends on the resistance and the capacitance of the charge and discharge capacitor, therefore, the RC oscillator which does not depend on temperature and power supply voltage can be obtained by using the resistor and the capacitor with low temperature coefficients and low voltage drifts.

A touch pad has a controller circuitry for generating an X-Y coordinate signal; a touch screen connecting with the controller circuitry, which has a transparent substrate and a transparent conductive film provided at the transparent substrate. The transparent conductive film having a plurality of capacitance sensors distributed along an X-coordinate direction and a Y-coordinate direction. The plurality of capacitance sensors are patterned for averaging the resistance capacitance distribution.

A method for fabricating an organic circuit board having embedded passive components, such as resistors, capacitors and inductors, is disclosed. In embedding a resistor or capacitor, a passive unit of a resistive film or a capacitive film is first made on one side of a conductive foil. In forming an inductor, a soft magnetic film is first made on one side of a conductive foil. The foil with the soft magnetic film is then introduced into the multilayer circuit board processing. The electrodes for various passive components or spiral coils for the inductive components and electrical circuit pattern are finally made on the same conductive foil simultaneously. The soft magnetic film deposited on the top of the spiral coil may be made to further improve inductor performance.

The invention provides a power supply clamping position ESD (electronic static discharge) protecting circuit, comprising a power supply pin, a grounding pin, an R-C (resistance-capacitance) circuit, a trigger circuit, a biasing circuit and a clamping position circuit. The R-C circuit is used for inducting an ESD voltage and comprises an impedance component which is connected between the power supply pin and a first node, and a capacitive reactance component which is connected between the first node and a second node, wherein, the second node is not directly connected with the grounding pin; the trigger circuit is connected among the power supply pin, the grounding pin and the R-C circuit and is used for generating an ESD triggering signal according to the electrical levels of the first node and the second code; the biasing circuit is connected between the power supply pin and the grounding pin and is used for providing a biasing voltage for the second node; and the clamping circuit isconnected among the power supply pin, the grounding pin and the trigger circuit and is used for providing a low reluctance channel between a power supply and the ground after the ESD triggering signal is received so as to discharge an electrostatic current. The electric leakage current of an electronic static discharge protecting circuit can be effectively restrained by the power supply clamping position ESD protecting circuit, and an inner circuit is effectively protected to avoid the damage by static electricity.

A method and a system for generating physiological signals with fabric capacitive sensors are provided. The system uses at least one fabric, and at least one conduction region is provided on the fabric. A capacitance is formed between the conduction region and the region in contact with human body. In a case that a signal is provided externally, when a pressure,a pull or a tension between the human body and the fabric makes the capacitance change, or the changes of the medium constants between the human body and the fabric makes the capacitance change, the changes of capacitance can be detected. The changes of capacitance are shown as frequency, voltage or current, and therefore the changes of resonance frequency, voltage or current are generated. The physiological parameters of human body, such as gesture, swallowing, coughing, respiration, perspiring, even heartbeat and the like, are reflected by the changes of resonance frequency, voltage or current. The signal range of the frequency, voltage or current are changed by the fabric capacitive sensors connected in series or in parallel with a switch, a resistance R, a capacitance C or an inductance L.

The present invention discloses a low noise amplifier circuit adopting multiplex noise counteract, wherein the low noise amplifier includes a DC connected Balanced to Unbalanced transformer (Balun), a pair of cross coupling connected input transistor with source electrode respectively direct connected to two balancing ends of the Balanced to Unbalanced transformer and the grid respectively AC coupled connected to two balancing ends that different with Balanced to Unbalanced transformer; a pair of transistor load with the grid respectively AC coupled connected to two balancing ends of the Balanced to Unbalanced transformer, and two pairs of electric resistance-capacitance (R-C) high-pass filter network forms cross coupling configuration by connecting the input transistor, two pairs of electric resistance-capacitance high-pass filter network AC couples the input signal to grid of the transistor load tube. The main purpose of the present invention is to realize low noise coefficient and high linearity through multiplex noise counteract technology only consuming low power consumption at the same time.