Product
Patsnap Eureka
For R&D, Patsnap Eureka makes reading and utilizing patents & technical documents easy.
Patsnap Eureka AIR
Designed for self-driven R&D workflows. Generate viable solutions, solve complex R&D challenges, empower your innovation with AI.
Patsnap Eureka Materials
Designed for material experts only. Revolutionize your material R&D, from search, analyze, to developing new materials.
Feature
TechResearch
Generate reliable direction feasibility study reports for your R&D in just a few steps.
TechSeek
Discover and master advanced knowledge NOW. Basics, ideas, possibilities, all at once.
TechMind
As an expert in R&D Theories, TechMind can generates customized viable solutions instantly.
TechRisk
Analyze your overall solution with one click, know your potential R&D risks in advance.
TechMonitor
Get weekly tech updates, stay abreast of the latest tech innovations and key insights.
Patents
Literature
Hiro is an intelligent assistant for R&D personnel, combined with Patent DNA, to facilitate innovative research.
148results about How to "Zero power consumption" patented technology
Efficacy Topic
Property
Owner
Technical Advancement
Application Domain
Technology Topic
Technology Field Word
Patent Country/Region
Patent Type
Patent Status
Application Year
Inventor
Control device for a power supply with zero power consumption in standby mode
InactiveUS7765416B2Reduce power consumptionZero power consumptionEfficient power electronics conversionPower network operation systems integrationMicrocomputerMicrocontroller
The present invention discloses a kind of control device for a power supply with zero power consumption in standby mode, which includes a driver, an intermediate relay, a power relay, a signal induction circuit, a working power supply monitoring circuit for controlled equipment, a power switching circuit, a single-chip microcomputer and a battery. When a standby command is received by said signal induction circuit, said single-chip microcomputer causes said intermediate relay to cut off the power supply of the controlled equipment and the power switching circuit by said driver. When the controlled equipment is in standby mode, all parts of the control device of the invention are in the off state but the signal induction circuit is powered by the battery, so as to gain safety with low power consumption.
Owner:ZHOU XIANPU
Control Device for a Power Supply with Zero Power Consumption in Standby Mode
InactiveUS20080195874A1Reduce power consumptionZero power consumptionEfficient power electronics conversionPower network operation systems integrationMicrocontrollerMicrocomputer
The present invention discloses a kind of control device for a power supply with zero power consumption in standby mode, which includes a driver, an intermediate relay, a power relay, a signal induction circuit, a working power supply monitoring circuit for controlled equipment, a power switching circuit, a single-chip microcomputer and a battery. When a standby command is received by said signal induction circuit, said single-chip microcomputer causes said intermediate relay to cut off the power supply of the controlled equipment and the power switching circuit by said driver. When the controlled equipment is in standby mode, all parts of the control device of the invention are in the off state but the signal induction circuit is powered by the battery, so as to gain safety with low power consumption.
Owner:ZHOU XIANPU
Standby zero power consumption switch control system
ActiveCN101963789ANo power consumptionZero power consumptionPower network operation systems integrationElectronic switchingOperational systemControl system
The invention relates to a standby zero power consumption switch control system, which is used for electrically adjusting civil and industrial electrical appliances. In an automatic switch device for the on / off of a main power supply, a main circuit switch is arranged at the front end of the main circuit; the switch is controlled by a driver in a control circuit, automatically delays for disconnection when being not used by the system and is automatically closed when being used by the system. A control circuit switch is arranged at the front end of the control circuit, is automatically disconnected when being not used by the system and is automatically closed when being used by the system, thereby realizing zero power consumption, that is to say, the main circuit and the control circuit do not consume electric energy in standby; and meanwhile, only once on / off action is needed to be performed on the switch for the on / off of the main power supply when the system is operated in short time for multiple times.
Owner:CHANGZHOU KAIDI ELECTRICAL INC
Energy-Saving System for Electronic Apparatus
InactiveUS20100050002A1High energy consumptionZero power consumptionEnergy efficient ICTVolume/mass flow measurementElectricityRemote control
The present invention discloses an energy-saving system for electronic apparatus, comprising an electronic device and a remote controller. The electronic device includes a power supply module, a microprocessor module and a power-saving module. The microprocessor module is electrically connected to the power supply module. The power-saving module is electrically connected to a power source, the microprocessor module and the power supply module. The remote controller transfers a remote control signal to the power-saving module. Herein, upon receipt of the remote control signal, the power-saving module electrically disconnects the power supply module so as to stop electrical energy supply to the power supply module. Herein the power-saving module consumes 0.08 to 0.12 Watts of electrical energy. Therefore, the energy-saving system for electronic apparatus according to the present invention consumes simply about 0.1 Watts of electrical energy in standby mode, thereby achieving the effect of power-saving.
Owner:MATRIXVIXION TECH
Power adapter and charging method thereof
InactiveCN101651356APower consumption is reduced to zeroZero power consumptionBatteries circuit arrangementsSecondary cells charging/dischargingControl signalElectronic switch
Owner:HONG FU JIN PRECISION IND (SHENZHEN) CO LTD +1
Machine-Independent Roller Counting System
InactiveUS20090093974A1Increase consumptionZero power consumptionPlug gaugesMetal working apparatusProximity sensorComputer module
Roller cutting die comprises a body with substantially cylindrical outer surface defining a cutting pattern extending outwardly from the surface and a recess. Secured within the recess is a data recorder sensor module adapted to count rotations past the anvil roller. The sensor module includes an electromagnetic proximity sensor for generating a signal responsive to passage near the anvil roller, a processor coupled to the proximity sensor, a power use manager at least partially defined by the processor and the proximity sensor, and a power source for the processor and the sensor. A count of rotations is stored in a substantially non-volatile memory coupled to the processor.
Owner:GLASS JAMES +1
Hard startup / shutdown system
ActiveCN103869722AControllable shutdown timeZero power consumptionProgramme control in sequence/logic controllersEngineeringOver current protection
The invention discloses a hard startup / shutdown system. The hard startup / shutdown system comprises a power source, an over-current protection circuit, a startup / shutdown key, a hardware startup circuit, a software shutdown circuit, a hardware compulsory shutdown circuit, a hardware compulsory shutdown time regulating circuit and a key detection circuit. Compared with the prior art, the hard startup / shutdown system has the advantages that hardware startup time is controllable, shutdown states can be detected, the standby state hardly consumes power, and the hard startup / shutdown system is simple, safe and reliable.
Owner:GUANGDONG BIOLIGHT MEDITECH CO LTD
Ultraviolet photoelectric detector based on gallium oxide heterojunction structure and preparation method thereof
ActiveCN107819045AImprove performanceRapid responseMaterial nanotechnologyFinal product manufactureHeterojunctionResponse effect
The invention belongs to the technical field of ultraviolet photoelectric detectors, and particularly relates to an ultraviolet photoelectric detector based on a gallium oxide heterojunction structureand a preparation method thereof. The ultraviolet photoelectric detector includes an alpha-Ga2O3 / beta-Ga2O3 heterojunction nanosheet array, ITO transparent conductive glass, and a Ti / Au film electrode. An alpha-Ga2O3 / beta-Ga2O3 heterojunction nanosheet is formed by wrapping an alpha-Ga2O3 nanosheet as a core in beta-Ga2O3 as a shell. The ultraviolet photoelectric detector of the invention has stable performance, sensitive reaction and small dark current, and has a good ultraviolet photoelectrical response effect. The preparation method has the characteristics of strong process controllability, simple operation, good universality, and the like, is expected to be widely applied to fields such as self-powered flame detection, high-voltage line corona and missile plume, and has high popularization value.
Owner:东营睿港招商服务有限责任公司
Apparatus for controlling power supply, method and electron system
InactiveCN1963707AZero power consumptionProgramme control in sequence/logic controllersControl powerElectronic systems
This invention relates to one power control device located between device and power supply device, wherein, the device comprises trigger unit and control unit; when the device is at open status, the said trigger unit is to send trigger signal to the main controller; the said control unit is to receive no signal to break off the device and device power; the no signal is received by main controller to the trigger signal for sending. This invention also discloses one power control method and electron system.
Owner:VIMICRO CORP
Buck-boost-integrated wide-range-output automatic-load-detection mobile power circuit
InactiveCN102647011ALow costEasy to carryBatteries circuit arrangementsElectrical testingOvervoltageRechargeable cell
The invention relates to a buck-boost-integrated wide-range-output automatic-load-detection mobile power circuit. The buck-boost-integrated wide-range-output automatic-load-detection mobile power circuit comprises a chargeable battery, a charging and protecting circuit, a buck-boost-integrated circuit, an automatic load detection circuit, a controller, a reference voltage circuit and a pulse modulation circuit, wherein the charging and protecting circuit is used for charging the chargeable battery, the buck-boost-integrated circuit is used for the wide-range output of the chargeable battery, and the pulse modulation circuit is used for modulating the pulse widths of a first electronic switch and a second electronic switch. According to the buck-boost-integrated wide-range-output automatic-load-detection mobile power circuit, the overvoltage, overcurrent and overtemperature protection of a mobile power charging circuit and the buck-boost-integrated wide-range voltage output of a mobile power discharging circuit can be simultaneously realized, and the function that whether a load is accessed or not can be automatically detected can be realized, so that the buck-boost-integrated wide-range-output automatic-load-detection mobile power circuit has the advantages of powerful function, simple circuit, low cost and convenience in production.
Owner:GUANGZHOU VIOOO DIGITAL TECH
Optical wireless communication device
ActiveUS20070297717A1Assist in operationEasy to useClose-range type systemsCoupling light guidesOptical communicationOptical wireless communications
An optical wireless communication device mounted in electronic equipment includes: a light-receiving element for receiving an optical communication signal; and a control unit that monitors a received light output of the light-receiving element. When the control unit determines that the received light output represents the optical communication signal, it selects and executes communication mode for the optical communication signal. When the control unit determines that the received light output does not represent the optical communication signal, it selects and executes charge mode in which the received light output is used as a charge power.
Owner:MICROSOFT TECH LICENSING LLC
Fingerprint lock and realizing method thereof
InactiveCN101135207AZero power consumptionAvoid inconvenienceCharacter and pattern recognitionElectric permutation locksEmbedded systemFingerprint
The fingerprint lock includes one fingerprint recognizing chip, one electrically driven door lock, one control and display platform, one fingerprint sensor and one starting key, as well as one relay. All the relay, the electrically driven door lock, the control and display platform, the fingerprint sensor and the starting key are connected to the fingerprint recognizing chip, so that the user can power on the fingerprint lock by using the starting key to control the relay and the fingerprint recognizing chip can control the relay to power off the fingerprint lock.
Owner:CHENGDU FINCHOS ELECTRONICS
Lithium-ion power battery
ActiveCN101635372AUniform temperatureRealize overcharge protectionFinal product manufactureSecondary cells servicing/maintenanceLithiumElectrical resistance and conductance
The invention relates to a lithium-ion power battery, comprising a battery protection board (15). A negative pole output port B- of a detection circuit chip (31) of the battery protection board (15) is electrically connected with a negative pole connecting terminal (21-1); a positive pole output port B+ is electrically connected with a positive pole connecting terminal (22-1). Three ends of a power tube (32) are electrically connected with the negative pole connecting terminal (21-1), an output port M of the detection circuit chip (31) and one end of an equalizing resistor (15-3) respectively; the other end of the equalizing resistor (15-3) is electrically connected with the positive pole connecting terminal (22-1). A temperature relay (15-1) is provided with two output ports D. Two pins at the input end of a photo-coupler relay (15-2) are electrically connected with two output ports of the detection circuit chip (31) respectively; A and B at the other end of the photo-coupler relay (15-2) are two output ports. The lithium-ion power battery features strong protection functions, low cost, simple structure and low fault rate.
Owner:周金平
Multi-bit comparator with combination of time and digital converter and voltage digitizing method
InactiveCN104935344AReduce power consumptionReduce areaAnalogue/digital conversionElectric signal transmission systemsEngineeringFast speed
The present invention relates to a multi-bit comparator with the combination of a time and digital converter and a voltage digitizing method. The multi-bit comparator comprises a one-bit comparator, a time and digital converter, an inverter, and an XOR gate. The input end of the one-bit comparator is connected to the positive and negative ends of an input signal and a clock signal. The input end of the XOR gate is connected to the output end of the one-bit comparator. The input end of the time and digital converter is connected to the output end of the XOR gate and the clock signal which is processed by the inverter. According to the multi-bit comparator, by using the relation that the judgment time of the comparator in low voltage is increased with the reduction of input voltage, a judgment time is converted into a corresponding digital code through TDC conversion, thus the digitization of low power consumption and high precision small signal voltage is realized, and the multi-bit comparator and the method have the advantages of low power consumption, adaption to low-voltage design, small size and fast speed.
Owner:PEKING UNIV
Lock management system
InactiveCN103266816AZero power consumptionLow costNon-mechanical controlsAlarm locksElectricityPassword
The invention relates to the technical field of management systems, and in particular to a lock management system. The lock management system comprises an information tag, an MCU (micro controller unit) and a bilateral transmitting information software. The information tag for storing passwords and the MCU are arranged in an electronic lock, the bilateral transmitting information software is installed in a mobile phone, accordingly, the electronic lock is served as a Tag, and the mobile phone is served as a Reader. An NFC (near field communication) unlocking and management system has the advantages that 1, when the system is not use at ordinary times, the power consumption of the electronic lock is zero, so that the system is electricity-saving and environment-friendly; 2, the electronic lock is served as a Tag, the production cost of the lock is relatively low, and accordingly, the unit lock prices is reduced; 3, special Reader equipment is not needed, so that the system is economical; 4, the system can be applied to families and large enterprises, and the locking can be managed and recorded; 5, users respectively use the mobile phones so as to replace keys; and 6, even if relatives and friends visit, master control password or unlocking password can be transmitted from a remote end, and accordingly, a key transfer function is facilitated.
Owner:陈茂荣 +1
Zero-power-consumption switching circuit
ActiveCN104639139ASmall working currentExtended service lifeElectronic switchingMicrocontrollerEngineering
The invention discloses a zero-power-consumption switching circuit comprising a PNP type first triode, a PNP type second triode, an NPN type third triode and an NPN type fourth triode. The input end of a main power supply is connected with the emitter of the first triode, a fourth resistor is connected between the input end of the main power supply and the base of the first triode, the collector of the first triode is connected with the emitter of the second triode, and an eighth resistor is connected between the collector of the first triode and the base of the second triode; the collector of the first triode is connected with the power input end of a microcontroller, a diode of the signal input end of the microcontroller is connected with a starting switch of a switching power supply, and the signal input end is further connected with the input end of the main power supply through a second resistor; the signal output end of the microcontroller is respectively connected with the bases of the third triode and the fourth triode, the collector of the third triode is connected with the base of the first triode, the collector of the third triode is connected with the starting switch, and the collector of the fourth triode is connected with the base of the second triode.
Owner:于红勇
Communication energy storage power supply system
ActiveCN104882936ALess investmentAvoid single point of failure problemsBatteries circuit arrangementsElectric powerData centerThe Internet
The invention relates to a communication energy storage power supply system, and especially relates to a direct-current energy storage power supply system for Internet data centers and communication base stations. The invention discloses an intelligent control communication power supply system comprising a battery pack, a charge and discharge port, a battery protection unit, a voltage conversion module, a battery management unit, a normally open delay switch, and a self-locking switch. The communication energy storage power supply system of the invention has two different system activation modes and an intelligent battery management system.
Owner:李相哲
Electric appliance controller
InactiveCN103246208AReduce wasteZero power consumptionProgramme control in sequence/logic controllersMicrocontrollerCapacitance
The invention discloses an electric appliance controller which comprises a rectifier bridge, a filter capacitor, a switch power source and a first microcontroller, wherein the rectifier bridge is connected with a power source which supplies voltage for the rectifier bridge; the filter capacitor is connected with two ends of the rectifier bridge; the output end of the rectifier bridge is connected with the switch power source; the switch power source is connected with the first microcontroller and a load respectively and supplies voltage for the first microcontroller and the load; and the electric appliance controller further comprises a standby device, which is connected in series between the power source and the rectifier bridge and is used for closing or opening the circuit between the power source and the rectifier bridge. According to the electric appliance controller provided by the invention, the standby device is connected in series with the circuit of the power source, and when the electric appliance controller is in a standby state, the standby device opens the circuit of the power source to prevent the circuit of the power source from supplying power to an entire control circuit, so that zero power consumption is realized and energy waste is reduced.
Owner:SUZHOU SAMSUNG ELECTRONICS CO LTD
Power on/off circuit power supply management method capable of realizing shutdown zero power consumption
InactiveCN103543816AZero power consumptionImprove performanceVolume/mass flow measurementPower supply for data processingSupply managementVoltage
Provided is a power on / off circuit power supply management method capable of realizing power-off zero power consumption. According to the power on / off circuit power supply management method capable of realizing power-off zero power consumption, a power on / off circuit power supply is managed by collecting trigger signals of power on / off keys of controlled electronic equipment and power on / off signals generated by a power on / off circuit, the power on / off circuit is powered by a power supply chip controlled through an EN, namely a voltage conversion chip, the trigger signals of the power on / off keys and the system power on / off signals generated by the power on / off circuit form two paths of an 'OR gate', the two paths of the 'OR gate' are connected with EN pins of the voltage conversion chip and used for maintaining EN signals of the voltage conversion chip after the power on / off keys are released, an OR gate chip is provided with two input ends and an output end, the trigger signals generated by the power on / off keys of the controlled electronic equipment are connected through one path of input of the OR gate chip, and can switch off the power supply of the power on / off circuit after detecting the power on / off signals, and power-off zero power consumption of the equipment is achieved.
Owner:NANJING PANDA ELECTRONICS +1
Power supply control circuit and LCD device adopting same
InactiveCN101236729AAvoid wasting energyAvoid potential dangerStatic indicating devicesLiquid-crystal displayEngineering
The present invention provides an electrical source control circuit comprising a first port, a second port, a third port, a direct current stabilized electrical source comprising two input ends and an output end, a controllable switch comprising a control element and a switch element, an intelligent control module and a button; the first port and the second port are connected with the live wire and the zero line of commercial power respectively; the second port and the third port are connected with a load; one input end of the direct current stabilized electrical power is connected with the first port, the other end is connected with the second port via the button, meanwhile the other end is connected with the third port via the switch element, the output end of the direct current stabilized electrical source is connected with an intelligent control module; the control element is connected between the intelligent control module and the output end. Meanwhile the invention provides a liquid crystal display device adopting the electric source control circuit.
Owner:INNOCOM TECH SHENZHEN +1
Electricity-saving control circuit and electronic equipment
ActiveCN104049549ALess power consumptionZero power consumptionProgramme control in sequence/logic controllersControl functionCapacitance
The invention provides an electricity-saving control circuit and electronic equipment. The electricity-saving control circuit comprises an LDO, a power-on impact capacitor and an MCU, the LDO comprises a power source input pin, a switch pin and a power source output pin, one end of the power-on impact capacitor is connected with the power source input pin, the other end of the power-on impact capacitor is connected with the switch pin, the MCU comprises an MCU power source pin and an MCU control pin, the MCU power source pin is connected with the power source output pin, and the MCU control pin is connected with the switch pin. The MCU is used for being triggered by a preset trigger condition to output low levels to the MCU control pin under a normal mode to enter in an electricity saving mode, and according to the normal mode, the MCU outputs high levels to the MCU control pin. According to the electricity-saving control circuit and the electronic equipment, power consumption can be reduced to the maximum extent when an MCU system with the LDO is in a low power consumption mode, and the electricity consumption is zero when the MCU is idle or does not need to work. The enabling control function of the switch pin of the LDO is utilized, the power supply of the MCU can be powered off automatically, and the power supply can be restarted under proper excitation.
Owner:TENDYRON CORP
Zero-power-consumption releasing circuit of anti-interference capacitor at AC end of switching power supply
ActiveCN103269064AReasonable designZero power consumptionEmergency protective arrangements for limiting excess voltage/currentCapacitanceEngineering
The invention discloses a zero-power-consumption releasing circuit of an anti-interference capacitor at the AC end of a switching power supply and relates to the technical field of switching power supplies. The zero-power-consumption releasing circuit of the anti-interference capacitor at the AC end of the switching power supply comprises a first port, a second port, a third port and a fourth port, wherein one end of the first port is connected to a +12V power supply at the output end of the switching power supply, one end of the second port is connected to the negative electrode of the output end of the switching power supply, the other end of the second port is connected with the ground, and one end of the third port and one end of the fourth port are connected to two ends of the capacitor C connected with the AC220V input end of the switching power supply in parallel respectively. The zero-power-consumption releasing circuit of the anti-interference capacitor at the AC end of the switching power supply has the advantages of being simple, reasonable in design, and capable of achieving zero power consumption after the switching power supply is powered off and saving power resources.
Owner:佛山金航向电子科技有限公司
Control circuit, battery having same, and battery control method
ActiveCN105580242AZero power consumptionReduce power consumptionCells structural combinationElectric powerElectrical batteryCharge control
The invention provides a charger comprising a power supply output interface, a signal interface, a balance charging interface, and a control circuit; the control circuit is respectively electrically connected with the power supply output interface, the signal interface, and the balance charging interface; the power supply output interface is used for outputting charging signals; the signal interface is used for obtaining charging information of the battery; the balance charging interface is used for control charging balance for all cells of the battery; the control circuit can select the signal interface and the balance charging interface according to the battery type, thus controlling charging of the battery. The invention also provides a charging system and an aircraft having the charging system.
Owner:SZ DJI TECH CO LTD
ZnO varistor-based fault discharge device and control method thereof
ActiveCN110912096AThe device is simple and cheapReduce the cost of protectionEmergency protective arrangements for limiting excess voltage/currentVaristorPower grid
The invention discloses a ZnO varistor-based fault discharge device and a control method thereof, and the fault discharge device comprises a current transformer which is used for detecting a current in a power transmission line; a signal processor which is used for processing the current detection signal; a fault bleeder which comprises a main bleeder path and a plurality of secondary bleeder paths, the main bleeder path comprises a first quick switch and at least one ZnO piezoresistor which are connected in series, and each secondary bleeder path comprises a second quick switch and a bleederresistor which are connected in series; and a controller which is used for carrying out closing control on the first quick switch and / or each second quick switch when the current in the power transmission line is greater than the rated breaking current of the circuit breaker, so that the current of the power transmission line is less than or equal to the rated breaking current of the circuit breaker, and controlling the closed quick switch to be disconnected after the circuit breaker is disconnected. The fault discharge device can reduce the protection cost of the power grid fault and improvethe protection effect of the power grid fault on the premise of not influencing the normal operation of the power grid.
Owner:HUNAN UNIV
Terahertz detector based on antiferromagnetic nonmagnetic metal heterojunction
ActiveCN110044476AZero power consumptionQuick responseVacuum evaporation coatingSputtering coatingHeterojunctionAntiferromagnetic coupling
The invention discloses a terahertz detector based on an antiferromagnetic nonmagnetic metal heterojunction, and belongs to the technical field of photoelectric detection. The method comprises the following steps: converting terahertz radiation energy into spin waves by utilizing the antiferromagnetic coupling resonance absorption characteristic of an antiferromagnetic material in a terahertz waveband, converting the spin waves into charge flow at an interface by utilizing the reverse spin Hall effect in nonmagnetic metal with strong spin-orbit coupling, and reading out voltage signals from electrodes on two sides of the surface of the nonmagnetic metal so as to realize the detection of terahertz radiation. The terahertz detector realizes terahertz detection by utilizing the electron spinproperty, is a spin terahertz detector, and has the advantages of zero power consumption, quick response, easiness in integration, room-temperature working and the like.
Owner:SHANGHAI INST OF TECHNICAL PHYSICS - CHINESE ACAD OF SCI
Lane indication system enabling intelligent direction change
InactiveCN106600995AEasy to adjustEase traffic congestionControlling traffic signalsArrangements for variable traffic instructionsElectricityControl electronics
The invention discloses a lane indication system enabling intelligent direction change. The system comprises a vehicle-mounted control unit and ground display units; the vehicle-mounted control unit is arranged in the vehicle bottom which is used to driving an isolation strip of a reversible lane, and comprises a power supply module and a power supply coil, and the power supply module provides voltages in two different directions to the power supply coil; and each ground display unit comprises an electronic ink screen, a controller, a receiving coil and a protective casing, the electronic ink screen, the controller and the receiving coil are arranged in the protective casing, the protective casing is inlaid in the reversible lane, the receiving coil provides energy needed for work of the electronic ink screen and the controller, and the controller can control the electronic ink screen to display corresponding indication marks according to the voltage direction sensed by the receiving coil. According to the invention, the direction of the indication mark of a lane can be changed intelligently and reasonably according to a specific requirement, the indication mark in the road surface can be changed synchronously when the reversible lane is changed, and the real reversible lane is realized.
Owner:天津卓越信通科技有限公司
Novel zero-power PTC starter for small refrigerating compressor
InactiveCN101917146AZero power consumptionHigh contact sensitivitySingle-phase induction motor startersTemperature coefficientThermistor
The invention provides a novel zero-power PTC starter for a small refrigerating compressor. The novel zero-power PTC starter is provided with a PTC positive temperature coefficient thermistor which is connected to a loop of a motor secondary winding of the compressor in series, wherein a bidirectional triode thyristor is connected between the first end of the thermistor and the S end of the secondary winding in turn; and a normally open reed switch and the positive temperature coefficient thermistor Rt which are connected with each other in series are arranged between the control electrode of the bidirectional triode thyristor and an input zero line end of a power supply. In the invention, a starting current of a motor main winding of the refrigerating compressor serves as an exciting current of the normally open reed switch and a normally open contact of the reed switch is closed instantly when the motor is started; a trigger current is applied to the control electrode of the bidirectional triode thyristor through the thermistor Rt so that the bidirectional triode thyristor is electrified and then the motor of the compressor is started; and after the starting is finished, the contact of the reed switch is disconnected, the control current disappears from the control electrode, the thyristor is stopped and the current of the motor secondary winding is zero.
Owner:吴更武
Contact type linear stress sensor based on mini-ring structure and stress detection method thereof
InactiveCN110017926ARealize the function of stress detectionImplement linear detectionForce measurement by measuring optical property variationFluid pressure measurement by optical meansResonant cavitySpectrum analyzer
The invention relates to a contact type linear stress sensor based on a mini-ring structure and a stress detection method thereof. The contact type linear stress sensor comprises a broadband light source, a mini-ring resonant cavity and a spectrum analyzer which are sequentially connected, wherein the mini-ring resonant cavity sequentially comprises a substrate, a lower limiting layer, a channel straight waveguide, a mini-ring waveguide and an upper limiting layer from bottom to top; the area where the channel straight waveguide and the mini-ring waveguide are located is a refractive-index sensitive area; after signal light is input from a left port of the channel straight waveguide, coupling occurs when the signal light is close to the mini-ring resonant cavity, part of light power inputfrom a channel is continuously coupled to enter the mini-ring resonant cavity, and meanwhile, part of light power in the mini-ring resonant cavity is also continuously coupled to enter the channel straight waveguide and then is output from a right port of the channel straight waveguide. The sensitive wave splitting character of the mini-ring waveguide to wavelengths is ingeniously utilized, afteroutput from the right end of the channel straight waveguide, different effective refractive indexes of a mini-ring waveguide core layer correspond to different central wavelengths, and thus the stressdetection function of the device is achieved.
Owner:SHANDONG UNIV
A double pack lithium battery lawn mower
ActiveCN103053265BAvoid harmZero power consumptionElectric motor controlMowersMicrocontrollerControl system
Owner:CHANGZHOU CREATE ELECTRIC APPLIANCE
Power saving control circuit and electronic equipment
ActiveCN104049717ALess power consumptionZero power consumptionPower supply for data processingElectricityNormal mode
The invention provides a power saving control circuit and electronic equipment. The power saving control circuit comprises an LDO (low dropout regulator), an electrifying impact capacitor, a normally opened switch, a retaining circuit, an MCU (microprogrammed control unit), a first bleeder circuit and a second bleeder circuit; when the MCU is used for detecting whether the normally opened switch is pressed or not in the normal mode, if the normally opened switch is pressed, a low level is input to a first control pin to enter a power saving mode, wherein the normal mode refers to the mode that the MCU outputs high level to the first control pin. According to the power saving control circuit, power consumption of an MCU system with the LDO is reduced furthest during a low power consumption mode, so the power consumption of the MCU which is at an idle state or does not need to work is zero. The power supply for the MCU can be automatically cut off by using the enabling function of a switch pin of the LDO, and the power supply is restarted under proper excitation.
Owner:TENDYRON CORP
Who we serve
- R&D Engineer
- R&D Manager
- IP Professional
Why Patsnap Eureka
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com