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57results about How to "Optimize circuit structure" patented technology

Circuit structure for rechargeable battery

InactiveUS20050156573A1Improve circuit structurePrevent inactivationElectric powerBattery overcharge protectionDrive motorEngineering
The improved circuit structure for a rechargeable battery has in a charging electric circuit device thereof for the battery with a detective protecting electric circuit and a charging-discharging electric circuit; the detective protecting electric circuit has a protective IC and a protective circuit switch; the charging-discharging electric circuit has a voltage stabilizing IC and a voltage stabilizing circuit switch connecting with the voltage stabilizing IC, the voltage stabilizing IC stabilizes the voltage of the battery at a set value, so that when the voltage of the battery is lower than the set value, the voltage stabilizing circuit switch is turned on. This assures normal activating of a unit such as a digital camera and prevents inactivation of the related devices of the camera (such as a driving motor of a lens of the camera) by activating a protective electric circuit in the circuit structure that can protect from overly charging or discharging.
Owner:CHIN HSEN TECH CORP

Organic light emitting diode display, manufacturing method thereof, and rotating device for circuit film

A manufacturing method of an organic light emitting diode (OLED) display includes: supplying a circuit film on the pad area of the display panel and bonding a first end portion of the circuit film to the pad area; vertically standing and inserting the display panel in a bonding device; holding a portion of the circuit film including a second end portion to be horizontal by using a rotating device including a vacuum absorbing portion; supplying a flexible printed circuit (FPC) into a space under the second end portion of the circuit film, and attaching the flexible printed circuit to the second end portion of the circuit film; and operating the rotating device to move the second end portion to a vertical position, and separating the circuit film from the vacuum absorbing portion.
Owner:SAMSUNG DISPLAY CO LTD

Rapidly-adaptive all-digital phase-locked loop and design method thereof

The invention discloses a rapidly-adaptive all-digital phase-locked loop and a design method thereof. The rapidly-adaptive all-digital phase-locked loop comprises a digital phase discriminator, a digital filter, a numerically-controlled oscillator and an adaptive controller, wherein the digital phase discriminator is used for subjecting an input signal ui and an output signal uo fed back to the input end of the phase-locked loop to phase discrimination and transmitting a phase error signal e reflecting the input signal and the output signal to the digital filter and the adaptive controller, the adaptive controller is used for generating a corresponding control signal c according to input signal frequency change and the phase error signal and transmitting the control signal c to the digital filter, the digital filter is capable of changing intrinsic parameters of the phase error signal and the control signal after receiving the phase error signal and the control signal, and generates a control signal N, and the numerically-controlled oscillator is used for adjusting frequency and phase of the output signal of the phase-locked loop, so that the all-digital phase-locked loop can be locked rapidly.
Owner:NANHUA UNIV

Radio frequency switch unit and radio frequency switch circuit thereof

The invention discloses a radio frequency switch unit and a radio frequency switch circuit thereof. The radio frequency switch unit comprises a grid bias circuit, a switch circuit, and a body-region driving circuit. The grid bias circuit is used for transmitting a grid control voltage VGc to a grid of a switch tube. The switch circuit includes an NMOS switching tube Msw and an access resistor Rdsand is used for transmitting or turning off a radio frequency link. The body-region driving circuit is used for converting the grid control voltage VGc of the NMOS switching tube Msw into a substratecontrol voltage VB. Therefore, a body-wide full-swing voltage-drop-free adaptive grid bias drive voltage is realized; and the body-region extra complicated driving bias circuit is saved.
Owner:SHANGHAI HUAHONG GRACE SEMICON MFG CORP

Turnout control circuit for AC switch machine

The invention discloses a turnout control circuit for an AC switch machine. The turnout control circuit is characterized by comprising a starting circuit, an actuating circuit and an indication circuit, wherein the starting circuit comprises a first turnout starting relay 1DQJ, a second turnout starting relay 2DQJ and a first turnout starting relay repeating relay 1DQJF; when the turnout control circuit is used for the occasion that a turnout positioning control relay DCJ or a reverse position control relay FCJ is sucked up. The first turnout starting relay 1DQJ is subjected to excitation suction, and the second turnout starting relay 2DQJ achieves pole switching; the actuating circuit is used for delivering a 380 V AC power source to the outdoor turnout AC switch machine according to theexcitation suction conditions of the first turnout starting relay 1DQJ, the first turnout starting relay repeating relay 1DQJF and the second turnout starting relay 2DQJ in the starting circuit to enable the 380 V AC power source to drive a turnout to be switched to a reverse position or to be positioned, and then the 380 V AC power source is disconnected; the indication circuit comprises a safetypolar-biased relay DBJ and a safety polar-biased relay FBJ, independently indicates a transformer BD1-7, a rectifying element, a 4[mu]f capacitor, and is used for reflecting the position of the turnout to a signal building; and the actuating circuit and the indication circuit are independent of each other.
Owner:CHINA CREC RAILWAY ELECTRIFICATION BUREAU GRP

Right-hand nonlinear transmission line microwave frequency multiplication circuit and manufacturing method thereof

The invention relates to the microwave circuit technology field in micro-electronics and especially relates to a right-hand nonlinear transmission line microwave frequency multiplication circuit based on a plane schottky diode and a manufacturing method thereof. A right-hand nonlinear transmission line microwave frequency multiplication circuit is formed by 23 right-hand nonlinear transmission line units which are connected in series with each other. The each right-hand nonlinear transmission line unit is formed by the parallel schottky diodes and two segments of the same transmission lines which are connected in series. By using the right-hand nonlinear transmission line microwave frequency multiplication circuit provided in the invention, a circuit structure can be optimized; a peripheral bias circuit can be simplified. By using the manufacturing method of the right-hand nonlinear transmission line microwave frequency multiplication circuit provided in the invention, a corresponding circuit manufacturing technology can be simplified so as to improve harmonic output power of the frequency multiplication circuit. Harmonic wave conversion efficiency can be increased. A narrow-band harmonic-wave output characteristic can be improved and a harmonic wave output purity can be increased too. The method has many other characteristics.
Owner:北京中科微投资管理有限责任公司

Non-volatile ferroelectric cell array block having hierarchy transfer sensing architecture

The present invention discloses a non-volatile ferroelectric cell array block having a hierarchy transfer sensing architecture. The cell array block of the invention includes a plurality of sub cell arrays, each with a hierarchy bit line architecture; a plurality of sub bit line sense amplifiers for amplifying a voltage of a sub bit line; main bit line sense amplifier for amplifying a voltage of a main bit line; and a word / plate driver for selectively activating the word line and the plate line in the sub cell array. The cell array block of the invention can be advantageously used for performing more stable read and write operations on a data even with a small sized cell, by having a sub bit line capacitance independent of the main bit line.
Owner:SK HYNIX INC

Life-sustainable power supply system for computer

The present invention discloses a life-sustainable power supply system for a computer. The system comprises: a first rectifying circuit, wherein the first rectifying circuit is connected with an alternating current power source, and the output end of the first rectifying circuit is connected with a constant current stabilizing circuit; and a battery pack, wherein the contact end of the battery pack is connected with the output end of the first rectifying circuit. A positive electrode of each battery extends out of a first conductive slider; a negative electrode of each battery extends out of asecond conductive slider; each of the first conductive sliders is slidably provided with a first ring; each of the second conductive sliders is slidably provided with a second ring; the first ring and the second ring are concentrically arranged and synchronously rotated; the first ring is provided with a first plate, and the second ring is provided with a second plate; the first plate and the second plate are correspondingly spaced apart; the first conductive slider is in sliding conductive contact with the first plate; and the second conductive slider is in synchronous sliding conductive contact with the second plate. According to the technical scheme of the present invention, the technical problem that the computer with insufficient power supply is solved.
Owner:宁波扇贝科技有限公司

High-power 100-watt 11dB attenuation plate with aluminum nitride ceramic substrate

The invention discloses a high-power 100-watt 11dB attenuation plate with an aluminum nitride ceramic substrate. The high-power 100-watt 11dB attenuation plate comprises the aluminum nitride ceramic substrate which is 5.7 mm wide, 8.9 mm long and 1 mm thick, a silver paste back conducting layer is printed on the back face of the aluminum nitride ceramic substrate, a silver paste wire and five black resistors are printed on the front face of the aluminum nitride ceramic substrate, the silver paste wire is connected with the resistors to form a TT type attenuation circuit, the five black resistors are respectively and correspondingly printed with a glass protecting film, and the five glass protecting films and the wire are printed with two protecting films. The high-precision thick film printing technology is adopted for the silver paste back conducting layer, the silver paste wire, the five black resistors, the glass protecting films and the two protecting films. According to the design thought of the attenuation plate, the circuit structure of an input end is optimized, standing waves of the input end are improved, and meanwhile a high-precision attenuation value is obtained by accurately modifying resistance values. The high-power 100-watt 11dB attenuation plate with the aluminum nitride ceramic substrate has various excellent indexes and meets the use requirements of a current 4G network.
Owner:苏州市新诚氏通讯电子股份有限公司

A sustainable power supply system for computers

The present invention discloses a life-sustainable power supply system for a computer. The system comprises: a first rectifying circuit, wherein the first rectifying circuit is connected with an alternating current power source, and the output end of the first rectifying circuit is connected with a constant current stabilizing circuit; and a battery pack, wherein the contact end of the battery pack is connected with the output end of the first rectifying circuit. A positive electrode of each battery extends out of a first conductive slider; a negative electrode of each battery extends out of asecond conductive slider; each of the first conductive sliders is slidably provided with a first ring; each of the second conductive sliders is slidably provided with a second ring; the first ring and the second ring are concentrically arranged and synchronously rotated; the first ring is provided with a first plate, and the second ring is provided with a second plate; the first plate and the second plate are correspondingly spaced apart; the first conductive slider is in sliding conductive contact with the first plate; and the second conductive slider is in synchronous sliding conductive contact with the second plate. According to the technical scheme of the present invention, the technical problem that the computer with insufficient power supply is solved.
Owner:宁波扇贝科技有限公司
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