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

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.

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.

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.

An image data processing circuit including: an input section for inputting image data; a plurality of compressing sections which are capable of compressing the input image data solely or in parallel; a plurality of decompressing sections which are capable of decompressing the compressed image data solely or in parallel; an output section for outputting the decompressed image data; a transferring section for transferring image data between a memory and of the input section, the compressing sections, the decompressing sections and the output section individually; and a transfer controlling section for selecting a mode from a parallel input/output mode, a parallel input mode and a parallel output mode.

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.

Disclosed is a method for protecting data information of an electronic device, comprising the following steps: 1) performing power-on detection on an electronic device of which production and installation are completed, detecting the stray capacitance of a signal line thereof, and recording same as a standard value of the signal line; 2) during a power-on operation, monitoring the stray capacitance of the signal line; 3) comparing the monitored capacitance value with the standard value, and entering step 4) when exceeding the set threshold value, otherwise entering step 2); and 4) erasing significant data in the electronic device. The method uses the manner of monitoring the stray capacitance to monitor the contact of outside foreign matter with the signal line, guarantees the security of data in the electronic device, and has the characteristics that the implementation process is simple and easy, safe and reliable, and the cost is low.

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.

The invention relates to a control circuit of an LED back mirror, which is characterized in that an input device is connected with an output device; the first stabilizer unit, the first oscillation unit and the second oscillation unit of the input device are connected in parallel at the rear end of a power unit which respectively transmits an input signal to the stabilizer unit, the first oscillation unit and the second oscillation unit so as to form a stabilizer signal, a first oscillation signal and a second oscillation signal; the output device comprises a first luminescent unit and a second luminescent unit; the first luminescent unit and the second luminescent unit are respectively provided with at least one LED; the LEDs are provided with different conductive voltages; wherein, the stabilizer signal is mutually mixed with the first oscillation signal and the second oscillation signal, is output out of the output device and is transmitted to the first luminescent unit and the second luminescent unit so as to lead the LED to generate the light source.

The invention provides a method for automatically creating a via hole on a copper sheet of a PCB (Printed Circuit Board), which is characterized in that the PCB can automatically search and acquire position information corresponding to a related instruction when receiving external instruction information under a current window, and create and place the via hole according to requirements in the instruction. According to the method, when an external trigger is received, via holes can be automatically created in a ground network copper sheet according to set intervals and arrays, careless omission caused by manually placing the via holes can be avoided, the working efficiency is improved, the conductive area can be increased, the current pressure of a bottleneck part can be relieved, the impedance of a circuit can be reduced, and the integrity of signals can be enhanced.

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.

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.

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.

The present invention discloses an overvoltage protection (OVP) circuit for use in a charger circuit system, comprising: a power transistor electrically connected between a voltage supply and a battery; an OVP circuit which turns off the transistor when a voltage supply exceeds a threshold value; and a multiplexing circuit electrically connected between an output of the OVP circuit and the gate of the transistor. The present invention also discloses a charger circuit with an OVP function, comprising: a single power transistor electrically connected between a voltage supply and a battery; an OVP control circuit which turns off the power transistor when a voltage supply exceeds a threshold value; and a charger control circuit which controls the gate of the power transistor to determine a charge current to the battery when the voltage supply does not reach the threshold value.

This invention discloses a three-phase N switch linearity compound power conversion device serial with N source output devices, which compounds a linear unit and a switch filter unit of ripple supply to realize that the fidelity transfer power signals of source or emitter output device-like linear power amplifier either have the fine dynamic performance of load step force and the advantage of linear loads suiting resistance, induction and capacitive and the non-linear loads of some thyristors or casts away the shortcomings of low efficiency, heavy and large volume so as to get the performance better than switch amplifier, which provides a female parent for the coming-out or regeneration of three-phase boosters, starters, frequency conversion suppliers and super-low frequency motor converters and other special supplies of high performance harmonic-suppression.

A display screen is provided. The display screen comprises a plurality of pixel units. Each pixel unit includes a plurality of subpixels and the subpixels includes at least a red subpixel, a green subpixel, and a blue subpixel, wherein one or more first subpixels of the subpixels have a resistor used to adjust a brightness level for the one or more first subpixels.

The present invention is a method by which diodes are connecting in a circuit such that they are more robust. The method involves placing two diodes of opposite directions in parallel and applying a DC bias such that a forward diode may then handle higher than normal voltages and a reverse diode provides a failsafe in the event of a reverse bias.

An induction heating device includes: a first board including a first working coil, a first inverter configured to apply a resonant current to the first working coil, a first current transformer configured to adjusting a magnitude of the first resonant current, a first control unit configured to control the first inverter; and a second board including a second working coil, a second inverter configured to apply a resonant current to the second working coil, a second current transformer configured to adjust a magnitude of the second resonant current, a first relay configured to selectively connect the second working coil to the second current transformer or to the first working coil, a second relay configured to selectively connect the second working coil to the first working coil or to the second resonant capacitor, and a second control unit configure to control the second inverter, the first relay, and the second relay.