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41results about How to "Reduce instantaneous current" patented technology

Intelligent ODN device and automatic management and control method of fiber cores

The present invention discloses an intelligent ODN device and an automatic management and control method of the fiber cores. The intelligent ODN device comprises an eID electronic label (1) and an intelligent ODN monitoring device, and the intelligent ODN monitoring device comprises a main processing controller (2), a sub-frame controller (3) and a business module collector (4), wherein an external 48V adapter or a 5V mobile power supply supplies power to the main processing controller. The sub-frame controller (3) is connected with the main processing controller (2) and the business module collector (4) separately, and the eID electronic label (1) is connected with the business module collector (4). According to the present invention, the business information of the terminals of the ODN monitoring device, the fiber core states and the link information are managed automatically and are gathered dynamically, a whole process does not need the artificial maintenance, the mass optical fiber resource management problem is solved, the resource obtaining accuracy is higher, and the maintenance efficiency and the resource utilization rate are improved.
Owner:FUJIAN YUXUN TECH CO LTD

High-speed data writing structure and writing method for phase change memory

The invention discloses a high-speed data writing structure and a high-speed data writing method for a phase change memory. The high-speed data writing structure comprises a comparison circuit, a data storage unit with N data bits and a flag bit, (N+1) writing circuits and a control circuit; the comparison circuit is used for comparing data read from an array with data required for being written, and sending a comparison result to the control circuit; the first writing circuit of the (N+1) writing circuits is used for executing a SET / RESET operation on the flag bit of the data storage unit; the N writing circuits are respectively used for executing the SET / RESET operation on the N data bits of the data storage unit; and the control circuit is used for controlling the (N+1) writing circuits to execute different SET / RESET operations on the flag bit and the data bits according to the comparison result. By the adoption of the high-speed data writing structure and the high-speed data writing method, the data writing speed can be increased, and the power consumption is reduced.
Owner:北京存云咨询管理有限公司

Inductance-voltage clamping full-bridge soft-switch circuit

The present invention discloses an improved inductance-voltage clamping full-bridge soft-switch circuit, comprising a full-bridge converter, a transformer, an output rectifying unit, an inductor, a clamping resistor, a capacitor, a first clamping diode and a second clamping diode. The inductor includes a first winding used as an auxiliary inductor and a second winding used for clamping. The present invention greatly reduces the transient current stress on the clamping resistor by connecting a capacitor in parallel with the clamping resistor connected in series, thereby effectively enhancing the reliability of the clamping resistor and improving the reliability of the overall circuit.
Owner:VERTIV CORP

Anti-thunder and anti-surge circuit

The invention discloses an anti-thunder and anti-surge circuit, and relates to the technical field of lightning protection; the anti-thunder and anti-surge circuit comprises an anti-thunder circuit which is bridged between a live line and a null line of a power supply and is used for restraining lightning surge, and an anti-surge circuit which is arranged behind the anti-thunder circuit and is used for restraining continuous surge and further restraining lightning stroke residual voltage; the anti-surge circuit comprises a bridge type rectifier and a wave-eliminating circuit, wherein the inputof the bridge type rectifier is connected to the two ends of the power supply in a bridging mode; and the wave-eliminating circuit is bridged at the output end of the bridge type rectifier and is used for providing fast energy storage and discharging functions. The anti-thunder and anti-surge circuit with the current limiting function and capable of absorbing continuous surge can achieve the lightning protection effect of 12 kV, and in addition, the service life of an anti-thunder and anti-surge device is effectively prolonged, and the long-term reliability of the anti-thunder and anti-surgecircuit is effectively guaranteed.
Owner:厦门方光电子科技有限公司

Source driving device

ActiveCN101739961AReduce instantaneous currentReduce electromagnetic interference phenomenonStatic indicating devicesCushionEngineering
The invention discloses a source driving device. The source driving device comprises a plurality of channels and a control module. Each of the channels comprises an output buffer, an output cushion, a driving switch and a charge sharing switch. The control module is used for controlling gate signals of the driving switch or the charge sharing switch in each channel to represent linear change. Therefore, the instantaneous current produced by the source driving device can be reduced so as to reduce the occurrence of electromagnetic interference phenomenon.
Owner:RAYDIUM SEMICON

Vehicle or machine starting circuit and vehicle or machine starting method

The invention discloses a vehicle or machine starting circuit. In application, a controller can output a control signal that controls a transistor to be connected while controlling a controllable switch to remain disconnected, the control signal is transmitted to the transistor via electrical isolation equipment, the transistor is then connected, and under the action of current limiting resistance, capacitors in a main control electric circuit are slowly charged; after the capacitors are fully charged, the controller controls the controllable switch to be closed, the transistor and the currentlimiting resistance are in short circuit, and electricity supply of control electric circuit can be achieved by the controllable switch to meet electricity demand of loads. Therefore, instantaneouscurrent can be reduced when equipment with large capacitance such as a motor driver and a switching power supply are charged to improve electricity performance of the machine by applying the vehicle or machine starting circuit, increasing of the maximum discharge current of a battery or charging by groups is not needed, reliability of the machine can be guaranteed, and cost is lowered. In addition, the invention further discloses a vehicle or machine stating method which has the same effect as above mentioned.
Owner:ZHEJIANG GUOZI ROBOT TECH

Printing method and device, printer and storage medium

ActiveCN109703205AAvoid simultaneous heatingReduce the case of uniform distributionOther printing apparatusHeating timePulse sequence
The invention discloses a printing method and device, a printer and a storage medium. The method comprises the steps: acquiring current line printing data, wherein the current line printing data comprise at least one printing point datum, and each printing point datum has a printing order M corresponding to the color depth; dividing the predetermined heating time of the current line into N sub-periods; generating a printing drive pulse sequence of each printing point datum according to the printing order M of each printing point datum, N and the random number assigned to each printing point datum, and randomly assigning the heating time of each printing point datum to the sub-period, corresponding to the printing drive pulse sequence, of the N sub-periods; driving a corresponding heating element of a printing head for heating according to the printing drive pulse sequence and reproducing the current line data on the printing medium. Simultaneous heating on all the printing point data is avoided and the heating pulse distribution consistency is reduced, so that the image points are relatively full.
Owner:XIAMEN HANIN ELECTRONICS TECH CO LTD

Liquid crystal display panel

A liquid crystal display. The liquid crystal display having a power device, a display unit array, a scan driver, a selection device, and a current limiting device. In normal operation of the liquid crystal display, according to the operation of the selection device, a voltage signal applied from the power device is directly applied to the scan driver according to the selection device, and the scan driver sequentially outputs scan signals to scan electrodes. During shutdown and power on processes of the liquid crystal display, according to the operation of the selection device, the voltage signal applied from the power device is applied to the scan driver through the current limiting device, limiting the instantaneous current from the power device. Moreover, the scan driver simultaneously outputs all the scan signals to erase charges within all the display units.
Owner:AU OPTRONICS CORP

Printing method and device, printer and storage medium

ActiveCN111923605AReduce the case of uniform distributionReduce instantaneous currentOther printing apparatusHeating timeComputer printing
The invention discloses a printing method and device, equipment and a storage medium. The method comprises the steps that printing data of the current line are acquired; the printing data of the current line comprise at least one piece of printing point data, and each piece of printing point data has the printing order M corresponding to the color depth of the printing point data; the preset heating time of the current line is divided into N sub time frames; according to the printing order M of each piece of printing point data, N and the random number distributed to each piece of printing point data, the printing drive pulse sequence of each piece of printing point data is generated, so that the heating time of each piece of printing point data is randomly distributed into the sub time frame, corresponding to the corresponding printing drive pulse sequence, of the N sub time frames; and a corresponding heating element of a printing head is driven to achieve heating according to the printing drive pulse sequences so as to show the data of the current line onto the printing medium again. The situation that all printing point data achieve heating at the same time and the situation that heating pulse distribution consistency is reduced can be avoided, and image points are quite full.
Owner:XIAMEN HANIN ELECTRONICS TECH CO LTD

Spark-prevention insertion-connection electrode

The invention relates to a spark-prevention insertion-connection electrode. The spark-prevention insertion-connection electrode comprises a crown part and a body part. The spark-prevention insertion-connection electrode is characterized in that the crown part is formed by a resistance material; the body part is formed by a metal material; the crown part is mounted on an end portion of the body part; and the crown part and the body part are in tight cooperation to contact with each other so as to form a connector. When the electrodes are used in a high-power electrical appliance, and a male plug is inserted into a female plug, two electrodes have a little possibility of generating sparks. The spark-prevention insertion-connection electrode has the advantages of structural simplicity and easiness in use.
Owner:胡正宇

Dyeing tube capable of keeping constant temperature and realizing uniform dyeing

InactiveCN112481898AUniform dyeingUniform dyeing and constant temperatureTextile treatment machine arrangementsDielectricMechanical engineering
The invention relates to the technical field of garment dyeing, and discloses a dyeing tube capable of keeping constant temperature and realizing uniform dyeing. The dyeing tube comprises a tube body;a dyeing disc is rotatably mounted on the rear wall of the tube body; a through cavity is formed in the surface of the dyeing disc; a dielectric substance is slidably mounted at the bottom of the through cavity; movable plates are fixedly mounted at the left and right ends of the dielectric substance; electrode plates are fixedly mounted on the left side and the right side of the through cavity;a baffle is rotationally connected to the interior of the through cavity; first electromagnets are fixedly mounted on the left side and the right side of the inner wall of the through cavity; and a sliding cavity is fixedly mounted in the center of the dyeing disc. According to the dyeing tube capable of keeping constant temperature and realizing uniform dyeing, the discharging speed is controlledthrough the tube passing speed of dye, so that the discharging speed is kept stable, the uniformity of cloth dyeing is guaranteed, and the dyeing quality is improved; and the internal temperature iscontrolled to rise and fall through the current temperature in the tube, so that the internal temperature is kept within a certain range and the dyeing efficiency is improved.
Owner:广州信联建供应链管理有限公司

Elevator control device

The invention discloses an elevator control device. The input end of a rectifier is connected with an external alternating current power supply, and direct current voltage is output to the input end of an inverter. The inverter inverts the direct current voltage at the input end into alternating current voltage to supply power to a motor. The high voltage end of a direct current converter is connected with the input end of the inverter. A second contactor is connected between the low voltage end of the direct current converter and an accumulator. A buff capacitor is disposed between the directcurrent converter and the second contactor, and the two ends of the buffer capacitor are separately connected with the positive and negative ends of the low voltage end of the direct current converter. The elevator control device has low cost.
Owner:SHANGHAI MITSUBISHI ELEVATOR CO LTD

Moving cutter assembly and crushing device

The invention relates to the technical field of processing equipment, aims to improve the problem that in the prior art, a crushing machine consumes large power, and provides a moving cutter assemblyand a crushing device. The moving cutter assembly includes a main shaft, a first cutter rest, a second cutter rest, a middle cutter rest, first moving cutters and second moving cutters, the first cutter rest, the middle cutter rest and the second cutter rest are successively arranged in the axial direction of the main shaft, and are fixedly connected with the main shaft. The multiple first movingcutters are arranged on the first cutter rest in the circumferential direction of the main shaft at intervals, one ends of the first moving cutters are fixedly connected with the middle cutter rest, the second moving cutters are arranged on the second cutter rest in the circumferential direction of the main shaft at intervals, one ends of the second cutters are fixedly connected with the middle cutter rest, the first moving cutters and the second moving cutters are alternately arranged along the axis of the main shaft at intervals, in the cutting process, the first moving cutters and the second moving cutter alternately cut, the fist moving cutters and the second moving cutters are located at different positions of the axis of the main shaft, thus momentary currents are reduced in cutting,and energy consumption is lowered.
Owner:JIANGSU FANGSHENG MACHINERY

Standby zero reactive power consumption control circuit in switching power supply

The invention discloses a standby zero reactive power consumption control circuit in a switching power supply, which comprises a main control switch arranged between a PFC circuit in the switching power supply and an AC power supply network, and is characterized in that the main control switch is switched off under the control of the control circuit when the PFC circuit does not work; the controlcircuit is characterized by further comprising an auxiliary control switch and a current-limiting resistor, the auxiliary control switch and the current-limiting resistor are connected in series and then connected to the two ends of the main control switch in parallel, and the control circuit controls the auxiliary control switch to be closed for set delay time and then controls the main control switch to be closed when the switching power supply is connected to a load. According to the invention, when the switching power supply is connected to an alternating-current power grid, the two ends of the main control switch are connected in parallel with the circuit formed by the series connection of the auxiliary control switch and the current-limiting resistor, and then the auxiliary control switch is controlled to be closed, so that the current in capacitors, inductors and other devices in the PFC is saturated with small current due to the limitation of the current-limiting resistor; andthen the main control switch is closed to reduce the instantaneous current.
Owner:SHENZHEN GOLD POWER TECH

Starter and its method

A starting device and its method can be used in inductive circuit such as motor to decrease instantaneous current produced when inductive circuit being started. The starting device includes a signal generator, a comparator and a control element. The generator is electrically connected to the said inductive circuit and generates first signal caused by responding the outputted signal of the inductive circuit. The comparator is electrically connected to the signal generator, and it is used to converter the first signal to the second signal and compare the second signal with a reference signal so as to produce a control signal. The control element is electrically connected to the comparator and the inductive circuit. In responding the control signal, the control element gradually increases the current that is input into the inductive circuit so as to decrease the instantaneous current produced when inductive circuit being started.
Owner:DELTA ELECTRONICS INC

Durable organic electroluminescent display panel

The invention discloses an organic electroluminescence display panel, especially an organic electroluminescence display panel able to prolong service life, mainly making corresponding regulation on the number of bottom electrodes and aligning electrodes of a traditional electroluminescence display panel and making the number of configured aligning electrodes less than that of configured bottom electrodes, thus able to reduce the supplied instantaneous currents between the bottom electrodes and aligning electrodes and the instantaneous brightness of organic luminous layers on the premise of not influencing display brightness of the display panel, so as to prolong the service life of the display panel.
Owner:彭冠璋

LED control method and system, cooking appliance

ActiveCN110269505BReduce the number of instantaneous simultaneous lightsReduce the instantaneous maximum currentPressure-cookersTime-controlled ignitorsLighting-up timeEngineering
The invention discloses an LED control method and system, and a cooking utensil. Wherein, the method includes: obtaining a plurality of LEDs to be controlled, wherein the plurality of LEDs to be controlled need to be controlled simultaneously; controlling the lighting time of the plurality of LEDs to be controlled to be different, so as to reduce the instantaneous maximum current of the circuit. The invention solves the technical problem in the prior art that the instantaneous current of the circuit is relatively large when a plurality of LEDs are simultaneously controlled to be lit.
Owner:ZHEJIANG SHAOXING SUPOR DOMESTIC ELECTRICAL APPLIANCE CO LTD

Air pump starting circuit

The invention discloses an air pump starting circuit which is used for starting / stopping an air pump. The starting circuit comprises the components of a field effect transistor which is used for receiving an inputting signal and is connected with the air pump, wherein when the inputting signal is a first electric signal, the field effect transistor and the air pump are started; and a diode which is connected with the field effect transistor and the air pump; wherein the anode of the diode is connected with one end of the field effect transistor, when the inputting signal is a second electric signal, the field effect transistor is stopped, the diode and the air pump form a loop and the air pump is stopped; the driving waveform of the first electric signal increases according to a fixed angle; and the voltage / current over two ends of the air pump increases along with increase of the waveform. The air pump starting circuit starts / stops the air pump by means of the field effect transistor,thereby reducing instantaneous current in starting of the air pump, reducing noise caused by violent vibration, and improving safety performance.
Owner:WUHAN HAOHONG TECH

Braille convex-concave point control structure and progressive full-page driving Braille display

InactiveCN101853592BAvoid the problem of requiring a large current when pulling inReduce complexityTeaching apparatusComputer moduleControl theory
The invention discloses a Braille convex-concave point control structure, comprising a character post rod, a rod projection, an active board and a control device thereof, and a character post rod motion control device. The rod projection is connected at the lower end of the character post rod which moves up and down through the driving of the character post rod motion control device and the rod projection; the active board is perpendicular to the character post rod, the bottom layer of the active board is provided with a groove; the active board is controlled to translate, and the rod projection enters the groove to drive the character post rod to move up and down. The invention also discloses a progressive full-page driving Braille display, comprising a plurality of square modules each of which is composed of 6 Braille convex-concave point control structures, wherein the structure is arranged in a mode of 3 rows * 2 columns mode; the active boards of the Braille convex-concave point control structures of the square modules in the same line are connected to form an active lath moving together, a waist hole corresponding to the character post rod is arranged on the active lath; in the square modules in the same column, the electromagnetic assemblies of a first Braille convex-concave point control structure, a second Braille convex-concave point control structure and a third Braille convex-concave point control structure in the same column of the square modules are respectively connected to a first driving wire, a second driving wire and a third driving wire which are identical.
Owner:NANJING COLLEGE OF INFORMATION TECH

In the flyback power supply, the circuits and electrical appliances that use thyristor isolation to control high-power loads

The invention discloses a circuit and an electrical appliance for controlling a high-power load by means of thyristor isolation in a flyback power supply, including a high-frequency transformer, an absorbing circuit, a secondary output circuit, an auxiliary power supply circuit, a drive circuit and a thyristor; the auxiliary power supply The circuit is connected to the high-frequency transformer, and the two ends of the auxiliary power supply circuit are connected to the AC phase line input and the analog ground; the output end of the drive circuit is connected to the G pole of the thyristor, which is used to control the conduction of the thyristor. When the flyback power supply starts, the auxiliary power supply circuit has a continuous DC output; when the drive circuit is turned on, the thyristor has a DC input provided by the auxiliary power supply circuit, the purpose of the present invention The purpose is to provide a circuit that utilizes thyristor isolation to control high-power loads in a flyback power supply. An auxiliary power supply circuit is added to the circuit, which can directly provide trigger current for the conduction of the thyristor, and reduce the voltage loss when the thyristor is turned on. Instantaneous current or instantaneous voltage is conducive to passing the EMC test.
Owner:GUANGDONG REAL DESIGN INTELLIGENT TECH

Safety control circuit of baby carriage pedal switch

The invention discloses a safety control circuit of baby carriage pedal switch. A five-pin relay achieves on-off of a circuit. The five-pin relay comprises a normally closed switch and a normally open switch. The normally open switch is connected with a positive pole and a negative pole of a circuit. The normally closed switch is connected with the positive pole and the negative pole of a motor. When the control circuit is closed, the normally closed switch is on and the normally open switch is off, and the circuit is conducted. When the control circuit is opened, the normally open switch is on and the circuit is closed and the normally closed switch is off, and the circuit of the motor is conducted. A four-pin relay links the positive pole of the motor with the negative pole of the motor. The four-pin relay comprises a normally closed switch. When the control switch is off, the positive pole of the motor and the negative pole of the motor are in short circuit. The safety control circuit avoids the fusing caused by excessive current in the switch. With the relays, high current is controlled by low current and the switch and an operating circuit are put in different circuits, so the current in the switch is low. The fusing caused by the current in the switch in the operating circuit over rated current is avoided.
Owner:ZHEJIANG JIAJIA RIDE ON

Driving device and control method thereof and electronic equipment

The invention discloses a driving device, which is used for driving a power output circuit, and comprises a first driving circuit, wherein the power output circuit comprises a first power tube, the first driving circuit is used for providing a first gate voltage to the gate electrode of the first power tube so as to control the on or off of the first power tube, the first driving circuit comprisesa charging module, a voltage detection module and a voltage source, the voltage source provides a charging voltage, the gate electrode of the first power tube is charged to a first voltage by using apower supply voltage, and when the voltage detection module detects that the first gate voltage reaches the first voltage, the charging module is controlled to be switched to charge by using the charging voltage. The invention further discloses a control method of the driving device and electronic equipment. The device is relatively low in cost.
Owner:SHANGHAI AWINIC TECH CO LTD

Construction method for improving percent of pass of double-block type concrete sleepers

ActiveCN103726416BPrevent disengagementReduce thermal variabilityBallastwayQuality controlEngineering
The invention mainly relates to a construction method for improving the percent of pass of double-block type concrete sleepers, in particular to a construction method which is applied to a sleeper structure and used for prefabricating and constructing the double-block type concrete sleepers with stopping shoulders. The construction method includes the steps that internal stress of steel bars is eliminated after the steel bars are made to stand still for a certain period of time; by adjusting the arch bending height and increasing welding points, the instantaneous welding current is reduced, the thermal distortion range of the welding points is reduced, and mold cleaning and quality control over and improvement to spraying of release agents are perfected; the impact force generated when the sleeper is demolded is reduced. The construction method has the advantages that the stress generated in the steel bar cold rolling process is effectively removed, the instantaneous welding current is reduced by increasing the welding points, and therefore the thermal distortion range of the welding portions is reduced, it is avoided that the welding points break away from the welding portions, the impact force generated when the sleeper is demolded is reduced, and the quality of the sleeper is guaranteed.
Owner:RAILWAY NO 10 ENG GRP CO LTD

Multi-channel switching circuit, switching method

The embodiment of the present invention provides a multi-channel switching circuit and switching method, including: a multiplexing switch matrix, the control terminal of the multiplexing switch matrix is ​​connected to a controller; the multiplexing switch matrix includes a plurality of multiplexing Using a switch, each output channel of each multiplexing switch is respectively connected to a sensor circuit; the common end of each multiplexing switch is respectively connected to the first input end of the signal detection circuit; the output end of the signal detection circuit is connected to the control device, the second input end of the signal detection circuit is connected to the output end of the digital-to-analog converter DAC; the input end of the digital-to-analog converter DAC is connected to the controller; the controller is used to control the digital-to-analog conversion when the multiplexing switch switches the output channel The DAC adjusts the bias voltage applied to the input channel of the multiplexing switch according to a preset gradient function. According to the switching circuit of the embodiment of the present invention, the instantaneous current and voltage generated during channel switching can be reduced, thereby reducing the influence on adjacent channels.
Owner:QITAN TECH LTD CHENGDU
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