62results about How to "Reduce supply current" patented technology

The invention provides an intelligent gear-shifting top-spray shower head, belongs to the technical field of shower equipment and solves the problems that a conventional top-spray shower head cannot realize automatic gear shifting and is high in cost. The intelligent gear-shifting top-spray shower head comprises a housing with a water inlet formed in the upper side, wherein a plurality of groups of water outlet holes are formed in the bottom of the housing, and mutually independent water outlet cavities of which the number is equal to that of the groups of water outlet holes are formed in the housing; the water outlet cavities are communicated with the groups of water outlet holes in a one-to-one correspondence manner; a leading structure with both a water inlet end and a plurality of water outlet ends, a driving part capable of driving the leading structure, an inductor and a power supply unit capable of powering up the driving part are fixed in the housing; the water inlet end of the leading structure is communicated with the water inlet of the housing, the number of the water outlet ends is equal to that of the water outlet cavities, and the water outlet ends and the water outlet cavities are communicated in a one-to-one correspondence manner; the driving part can drive the leading structure to switch according to an induction signal of the inductor to be optionally communicated with one or more of the water outlet ends. The intelligent gear-shifting top-spray shower head has the advantages of being automatic in control, convenient to use, low in cost and the like.

A single bit line, pulse-operated memory cell. The memory cell includes a first and second inverter, write access and feedback-control transistors, and read access transistor and read buffer transistors. The output of the first inverter is connected to the input of the second inverter and the output of the second inverter is connected to the input of the first inverter through the channel of the feedback-control transistor. The write access and feedback-control transistors are opposite types, and their gates are connected together so that when the feedback control transistor is on the write-access transistor is off and visa versa. Writing the cell thus avoids contending the with the on-transistor of the second inverter. The output of the cell is sensed by the gate of the buffer transistor and coupling the output of the buffer transistor through the read access transistor to the read output line.

The invention provides a secondary power supply system for blade server; the system adopts AC-DC or DC-DC system power supply as first power supply and outputs single 12V voltage, and adopts DC-DC on each function unit of the system as secondary power supply and finishes effective system power supply through two-level power supply; the system structure includes that: (1) a first power supply unit; (2) a secondary power supply unit; (3) a first-secondary power supply interconnection unit; wherein, (1) the first power supply unit is the basis of the system structure and controls the conversion of standard AC or DC power supply; (2) the secondary power supply unit is used for converting the first voltage into other voltage required by system modules; (3) the first-secondary power supply interconnection unit is a circuit for connecting the two-level power supply system.

The invention discloses a low power consumption meter remote self-help meter reading terminal and method based on OCR recognition. The self-help meter reading terminal comprises an optical image acquisition module, an OCR intelligent recognition module, an integrated circuit power supply management module, a communication module and a data management server. The self-help meter reading method comprises the steps that the optical image acquisition module acquires the optical image information of a measured meter and sends the information to the OCR intelligent recognition module; according to a pre-processed character image, the OCR intelligent recognition module extracts character features and sends the character features to the data management server; and the OCR character recognition module of the data management server recognizes the character features to acquire the display result of the measured meter, and the character features are stored and backed up. According to the invention, remote meter data acquisition is realized, and the low power consumption meter remote self-help meter reading terminal and method have the advantages of low power consumption, intelligent recognition, remote data transmission and high recognition rate.

The invention discloses an LED (Light-emitting Diode) lamp with a temperature-control protective circuit. The LED lamp comprises a power supply board (101), the temperature-control protective circuit and a radiator (102); the temperature-control protective circuit comprises a rectifying circuit (1), an LED light source load (3), a constant-current circuit (4) and first and second temperature-control switch circuits (6, 7); the first temperature-control switch circuit (6) comprises a first normally-closed temperature-control switch (F2) which is arranged on the radiator (102); when the temperature of the radiator (102) is higher than a switch-off temperature of the first normally-closed temperature control switch (F2), the first normally-closed temperature-control switch (F2) is switched off to cut off the supply power of the LED light source load (3); the second temperature-control switch circuit (7) comprises a second normally-closed temperature-control switch (F3) which is installed on the power supply board (101) and a voltage-dividing resistor; when an environment temperature of the circuit is higher than the switch-off temperature of the second normally-closed temperature-control switch (F3), the second normally-closed temperature-control switch (F3) is switched off and the current passes through the voltage-dividing resistor, so that a power supply current of the LED light source load (3) is reduced; and the LED lamp can be applied to the LED illumination field.

The invention discloses a processor and a connection device between user identification card (USIM). The processor comprises a universal asynchronous receiver interface which comprises at least data sending data terminal and data receiving terminal. The connection device comprises interface converting unit which is connected with the UART interface of the processor and USIM card separately for establishing communication between UART interface and USIM card, and completing the conversion between UART double lines single direction receiving and transmitting signal and USIM single line double directions receiving and transmitting signal. The invention has the advantages of having lower cost.

The invention discloses a self-adaptive control method of elevator emergency operation, which can reduce the elevator cost, enables the elevator emergency operation to be more intelligent, adopts a smaller spare power supply in the elevator emergency operation, and has higher reliability. The self-adaptive control method comprises the following steps of: firstly, carrying out short circuit on U, V, W phases of a permanent magnet synchronous motor, simultaneously opening band-type brakes and sliding an elevator car for a period t, wherein within the period t, a central control unit of an elevator detects the current of any two of U, V, W phases to obtain the car operation direction and the operation speed v1, when the v1 is within (1 / 10v0, v0), the car naturally slides to a flat bed; when v1 is in 1 / 10v0, a spare power supply supplies power for the permanent magnet synchronous motor, and the elevator car is equidirectionally driven to the flat bed according to the sliding direction of the elevator, or the elevator car does not move in the period t, and the spare power supply supplies power for the permanent magnet synchronous motor so as to drive the elevator car to ascend or descend to the flat bed, when v1 is more than v0, the spare power supply supplies power for the permanent magnet synchronous motor, and the elevator car is reversely braked to the flat bed according to the sliding direction of the elevator, wherein v0 is a rated elevator speed; and passengers come out when the elevator reaches the flat bed.

Disclosed herein are representative embodiments of methods, apparatus, and systems used for generating test patterns as may be used as part of a test pattern generation process (for example, for use with an automatic test pattern generator (ATPG) software tool). In one exemplary embodiment, hold probabilities are determined for state elements (for example, scan cells) of a circuit design. A test cube is generated targeting one or more faults in the circuit design. In one particular implementation, the test cube initially comprises specified values that target the one or more faults and further comprises unspecified values. The test cube is modified by specifying at least a portion of the unspecified values with values determined at least in part from the hold probabilities and stored.

The invention discloses an LED (Light Emitting Diode) street lamp which comprises a lamp body, an LED light source, a power supply device, a control circuit and a circuit board, wherein the lamp body is internally provided with a temperature sensor, and the temperature sensor, the control circuit and the power supply device are connected in series. The LED street lamp is internally provided with the temperature sensor and a heat radiating fan, thus the temperature of the ELD light source in the street lamp can be timely and intelligently controlled and reduced, which is helpful to reduce the light attenuation of the LED light source; and meanwhile, the shell of the LED street lamp is made of aluminum material, thus the weight of the street lamp is reduced, and the heat radiating effect is better. The invention has the advantages that the LED street lamp is convenient to mount, the temperature of the street lamp can be effectively controlled, and the service life of the LED street lamp is prolonged.

The invention discloses a system power supply management device and method with reduction of power consumption of a monitoring terminal, and belongs to the technical field of electric power. The device comprises a power supply module, a processor, a wireless communication module, a GPS positioning module, an impact acceleration collection module and a plurality of power supply control circuits, and the technical problem that the online monitoring terminal of an online transformer cannot continuously work for long time is solved. According to the system power supply management device and methodwith reduction of power consumption of the monitoring terminal, the power supply ends of the wireless communication module and the GPS positioning module are independently controlled, low power consumption is achieved on the physical control level of the power supply, the supply current is thoroughly reduced, and the endurance capacity is improved to the largest extent.

The invention discloses a computer built-in uninterruptible power supply emergency system which comprises an electric supply rectification unit, a switch voltage transformation unit and more than two output rectification filtering unit sets. Output rectification filtering units are divided into positive voltage output rectification filtering units and a negative voltage output rectification filtering units. The electric supply rectification unit is connected with the switch voltage transformation unit which is connected with the output rectification filtering units. The computer built-in uninterruptible power supply emergency system is characterized in that the output end of the electric supply rectification unit is connected with an outage detecting unit, one positive voltage output rectification filtering unit set is connected with an energy storage unit which is connected with a control distribution unit, and the outage detecting unit is connected with the control distribution unit which is connected with a shutdown determining unit. The computer built-in uninterruptible power supply emergency system is low in power and cost so that the emergency system can be accepted by the masses, and computers cannot be damaged by outage any longer.

The invention provides a connection and separation mechanism for a satellite. The connection and separation mechanism comprises a connection bracket for connecting with a launch vehicle, a plurality of adapter rings evenly distributed on the connection bracket and used for connecting with the satellite, a plurality of firework devices arranged at the corners of the connection bracket and unlocked by an igniter, at least one non-electric detonation transmission device connected to the plurality of firework devices for multi-way transmission, at least one spring separation device arranged on the connection bracket and used for providing a separation speed for separation of the satellite, and at least one travel switch arranged on the connection bracket and used for providing a separate signal to a carrier when the satellite is separated. According to the connection and separation mechanism, the synchronization accuracy of unlocking can be effectively improved, the release speed and the posture stability are improved, in addition, the power supply current of the energy system can also be effectively reduced, and the size of the connection and separation device is decreased.

The invention provides a vehicle control circuit, a vehicular switch power supply adjuster and a vehicle; the vehicle control circuit comprises a filter circuit, an optically-coupled isolation circuit, a power control circuit and a power input end. The filter circuit receives a first enable signal and outputs a second enable signal; the optically-coupled isolation circuit is connected with the output end of the filter circuit, and is closed and then outputs an electrical signal when receiving the second enable signal; the power control circuit controls on and off of a power supply and is connected with the output end of the optically-coupled isolation circuit and the output end of a low-voltage power supply, and is closed when receiving the electrical signal; the power input end is connected with the output end of the power control circuit. The control circuit adjusts the enable signal of an original vehicle control vehicular switch power supply adjuster from a main loop directly controlling low-voltage auxiliary power to power of an isolated control feedback loop PWM (Pulse width modulation) generator, isolated control between the vehicular switch power adjuster and a vehicle is achieved, and driving safety is guaranteed.

The present invention relates to a fire extinguishing control system. The fire extinguishing system includes a fire alarm controller and at least one fire extinguishing control unit connected with the fire alarm controller. The fire extinguishing control unit includes: a sensor connected to the fire alarm The controller is connected to sense the fire when a fire occurs to generate an alarm signal and send it to the fire alarm controller; the control module is connected to the fire alarm controller to receive the fire alarm signal. The control signal sent by the fire alarm controller; the control interface, connected with the control module, is used to decompose the control signal into multiple starting current signals to trigger the fire extinguishing work of the external fire extinguisher. Therefore, the fire extinguishing control system of the present invention utilizes the partition control of the fire extinguishing units, thereby reducing the power supply current, reducing the recoil force, and having a low failure rate.

The invention provides a motor control method and device and a shooting device. The method comprises that a motor power-off instruction is received; whether present power supply current of a motor is greater than a preset value is determined; if yes, the present power supply current of the motor is reduced to the preset value; and the present power supply current of the motor is reduced from the preset value to zero gradually according to preset step length and time interval. According to the motor control method and device and shooting device of the invention, a lens can be recovered to a pedestal of the shooting device gradually, impact and noise between the lens and a pedestal pad of the shooting device are reduced, the lens safety is improved, and the service life of the lens is prolonged.

The invention relates to an electric automation transmission execution mechanism control circuit. The control circuit comprises a boosted circuit, an energy storage capacitor, a select motor driving module, a shifting motor driving module, and a clutch motor driving module; the input end of the boosted circuit is connected with a vehicle power supply network; the output end of the boosted circuit is connected in parallel with the energy storage capacitor and the clutch motor driving module; and the output ends of the select motor driving module, the shifting motor driving module, and the clutch motor driving module are connected with a corresponding select motor, a corresponding shifting motor and a corresponding clutch motor in a driving way. Compared with the prior art, the control circuit saves materials, improves efficiency, reduces the using number of a switching tube and the power of the boosted circuit, and also saves the energy required by finishing one-time gear selecting and shifting and operating a clutch.

Provided is a serial power supply circuit, characterized by comprising: a first power supply unit, the first power supply unit being connected in parallel and being used for providing a first power supply voltage; a second power supply unit, the second power supply unit being connected in series and being used for providing a second power supply voltage; a power source unit for providing the firstpower supply unit and the second power supply unit with a power supply voltage; and a unit to receive power, the unit to receive power being provided with a first power supply unit access end for receiving the power supply voltage provided by the first power supply unit. The present invention achieves the aim that the power source conversion efficiency thereof is obviously better than that of a traditional serial and parallel power supply architecture in the current industry, and same also reduces an overall power supply current of a circuit, further simplifies a power supply circuit, and saves on the material costs of a device.

The embodiment of the invention discloses a series power supply circuit and method, and a computing device. The circuit is used to perform series power supply for N units to be supplied with power, each unit to be supplied with power comprises a first power supply voltage input end, a second power supply voltage input end and a grounding end, the first power supply voltage input ends supply firstpower supply voltages to the units to be supplied with power, and supply second power supply voltages for the same-level units to be supplied with power through N power supply units connected with thefirst power supply voltage input ends of the same-level units to be supplied with power. According to the embodiment of the invention, the power supply conversion efficiency is obviously improved, the whole power supply current of the circuit is reduced, and the material cost of the device is saved.

The invention provides a multifunctional industrial robot clamping and distinguishing device. A driving air cylinder is slidably connected to the inner wall of the rear end in a box body, a reset spring is installed on the surface of the left side of the lower end of the driving air cylinder, an electromagnet is arranged on the right side of the lower end of the driving air cylinder, a rack is fixedly connected to the middle of the left side surface of the driving air cylinder, a push rod is fixedly connected to the front end of the driving air cylinder, limiting rods are slidably connected tothe inner walls of the left side and the right side of the box body, and supporting springs are fixedly connected to the two sides of the rear surfaces of the limiting rods. When fixing plates move towards the middle position, the left side of the electromagnet pushes the driving air cylinder to move, the rack drives a connecting gear to rotate, then a belt wheel set drives a rotating wheel to rotate, bulges on the surface of the rotating wheel push an adjusting block backwards, the limiting rods move backwards, the fixing plates are loosened, articles fall into distinguishing chambers, articles with different sizes fall into different distinguishing chambers, and the articles with different sizes can be clamped and distinguished.

The invention provides a method for reducing power consumption. When a work mode of a mobile terminal is switched from a non-voice communication mode to a voice communication mode, the present power supply current of the mobile terminal is reduced if a screen of the mobile terminal is ON; and when the mobile terminal is switched back to non-voice communication mode, the present power supply current of the mobile terminal is increased if the screen of the mobile terminal is ON. The method can be used to reduce the power consumption of a system, and ensures high-efficiency operation of the system. The invention also provides a device for reducing the power consumption.

The present invention relates to a fire extinguishing control device. The fire extinguishing control device includes a control module and a control interface, and the control interface includes: an amplification circuit connected to the control module for receiving a control signal sent by the control module and Amplification; a pulse circuit, connected with the amplifying circuit, for generating a pulse signal; an output circuit, connected with the amplifying circuit, for outputting the multi-channel starting signal decomposed by the control signal under the action of the pulse circuit The current signal activates the external fire extinguishing device. The control interface also includes a limiter circuit connected to the amplifier circuit. Therefore, the fire extinguishing control device of the present invention realizes the partition control of the fire extinguishing device, thereby reducing the power supply current, reducing the recoil force, and having a low failure rate.

A wheel steering device for a vehicle, including: a steering knuckle that constitutes a part of a suspension device and that is capable of moving relative to a body of the vehicle in an up-down direction, the steering knuckle holding a wheel such that the wheel is rotatable; and a steering actuator configured to cause the steering knuckle to be pivoted about a kingpin axis so steer the wheel, wherein a caster angle and a caster offset are both 0.

The invention provides an intelligent gear-shifting top-spray shower head, belongs to the technical field of shower equipment and solves the problems that a conventional top-spray shower head cannot realize automatic gear shifting and is high in cost. The intelligent gear-shifting top-spray shower head comprises a housing with a water inlet formed in the upper side, wherein a plurality of groups of water outlet holes are formed in the bottom of the housing, and mutually independent water outlet cavities of which the number is equal to that of the groups of water outlet holes are formed in the housing; the water outlet cavities are communicated with the groups of water outlet holes in a one-to-one correspondence manner; a leading structure with both a water inlet end and a plurality of water outlet ends, a driving part capable of driving the leading structure, an inductor and a power supply unit capable of powering up the driving part are fixed in the housing; the water inlet end of the leading structure is communicated with the water inlet of the housing, the number of the water outlet ends is equal to that of the water outlet cavities, and the water outlet ends and the water outlet cavities are communicated in a one-to-one correspondence manner; the driving part can drive the leading structure to switch according to an induction signal of the inductor to be optionally communicated with one or more of the water outlet ends. The intelligent gear-shifting top-spray shower head has the advantages of being automatic in control, convenient to use, low in cost and the like.

The invention relates to a resistive and capacitive voltage reducing device which comprises a control module and a power supply module connected with the control module. The power supply module comprises a resistive and capacitive voltage reducing unit and a second voltage reducing unit, the resistive and capacitive voltage reducing unit comprises a first capacitor, and the second voltage reducing unit comprises a second capacitor and a controlled switch. The second capacitor is connected with the first capacitor in parallel through the controlled switch, the resistive and capacitive voltage reducing unit supplies power to the control module after carrying out voltage reducing to an input first alternating voltage, and the control module regulates the power supply current size of a system under different statuses by controlling the switching on and the switching off of the controlled switch. The application of the resistive and capacitive voltage reducing device has the advantages that cost is low, stand-by power consumption meets the instruction requirements of energy using products (EPUs), and energy is saved.

The invention provides a safe torque turn-off function circuit and a control method. The function circuit comprises a first safe torque turn-off STO branch, a control element, a pre-driving element and a power device. Wherein a power supply pin of the pre-driving element is connected with the output end of the control element, and the output end of the pre-driving element is connected with the power device; the control element is used for acquiring the state of the first STO branch; under the condition that the state of the first STO branch is the off state, a first turn-off signal is generated, and the first turn-off signal is used for cutting off a power supply of the pre-driving element so as to turn off the power device. A switch in an existing circuit is replaced by a control element, no series switch is arranged on a bus, in this way, no extra loss is increased, no extra size is occupied, safe torque turn-off is achieved through the control element, the power supply current of the control element is far smaller than that of the switch, the circuit loss is greatly reduced, and the reliability of the circuit is improved. And the size of the control element is smaller than that of the switch, so that the product size is reduced.

The invention discloses a device for dynamic reactive power compensation energy saving of an oil pumping unit. The device comprises a data collection control unit, voltage collection units, current collection units, a rectifying unit and an inversion unit. Power grid voltage is connected with the input end of the rectifying unit through a filtering circuit, the output end of the rectifying unit is connected with the input end of the inversion unit, the output end of the inversion unit is connected with the power supply end of a motor of the oil pumping unit, and the signal control ends of the rectifying unit and the inversion unit are connected with the driving signal output end of the data collection control unit respectively. The device is further provided with the voltage collection units and the current collection units, the signal output ends of the current collection units and the voltage collection units are connected with the signal input end of the data collection control unit, and the data collection control unit is further provided with a voltage zero passage signal detection system. The device can compensate reactive power of impact load, balances three-phase active current, enables the oil pumping unit to continuously pump oil, enables the oil pumping unit to run in intermittently or in frequency reducing mode according to oil quantity and automatically adjust pumping speed, improves power factor and reduces power loss.

The invention discloses a method for improving the image uniformity of thermal printers, and specifically relates to the field of thermal printers. The specific steps are as follows: S1. Data acquisition: acquire original data according to images; S2. Group original data: group the original data obtained in step S1 The data is equally divided three times, and three arrays A, B, and C are established, and the three data after the equalization are saved respectively. First, the three arrays are cleared to 0; S3, circularly querying the original data; S4, heating and printing. The invention divides the image to be printed into multiple transmissions and heats it by using the data equalization technology. The number of image points heated each time is the same, and then uses the method of heating all points at one time, so the printed image is very uniform and effective. The printing quality of the printer is improved, and the competitiveness of the product is improved. Since the power supply current of the battery is reduced, a battery with a large output current is not needed, thereby saving battery cost.

The invention discloses a high-speed precision signal processing system and method for monitoring high-frequency partial discharge, and belongs to the technical field of partial discharge detection ofpower equipment. The high-speed precision signal processing system for monitoring high-frequency partial discharge comprises an antenna, a filter amplification circuit, a zero bias detector, a precision high-speed composite amplifier circuit, a comparator circuit, a monostable trigger circuit and a transistor reset integrator circuit. After partial discharge signals are processed through the precise high-speed composite amplifier circuit, partial discharge imbalance is limited within a certain range, so that signal precision is improved, input of the partial discharge imbalance presents highimpedance, and it is ensured that the sensitivity of the detector cannot be reduced due to loads. On the premise of ensuring large bandwidth and high precision, the requirements for high-speed directconversion and high-speed signal processing are met. T feedback is added, so that useless bias voltage generated after input bias current is amplified by a feedback resistor is reduced under the condition that the frequency of an input signal is fixed.