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piezoelectricity Type ultrasonic sensor is a kind of piezoelectricity ADuM4160BRWZ sensor that converts acoustic signals into electrical signals. It is widely used in industry, medical treatment, automobile and other fields, and has more important significance. piezoelectricity Type ultrasonic sensor utilization piezoelectricity The characteristics of materials realize the conversion of sound waves to electrical signals. The sensor is composed of piezoelectricity Material, carrier, electrode, etc. When sound waves exist in the measured medium, piezoelectricity The material is deformed by the pressure of sound waves, thus generating electric charges, which are then converted into electrical signal output. 1、 Structure: piezoelectricity Type ultrasonic sensor is mainly composed of piezoelectricity It is composed of materials, metal electrodes, support plates and packaging materials. piezoelectricity The material is usually quartz or ceramic
Date: 2024-1-19 Reading: 1632
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Step down transformer is a kind of transformer piezoelectricity Can be converted to low piezoelectricity Power equipment that can. It is a common LM5007MM transformer in the power system, which is used to transfer the piezoelectricity It can be reduced to the voltage suitable for low-voltage electrical equipment. 1、 Basic structure: the basic structure of step-down transformer includes iron core, primary coil, secondary coil and insulation layer. The iron core is made of silicon steel sheets, and its main function is to increase the magnetic conductivity of the magnetic circuit. The primary coil and the secondary coil are respectively wound on the iron core, and the energy transfer between them is realized through magnetic coupling. The insulation layer is used to prevent short circuit of current. 2、 Features: 1. The main feature of step-down transformer is to reduce the input voltage to the output voltage
Date: 2023-10-27 Reading: 1861
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STM8L151C8T6 piezoelectricity A transducer is a device that converts mechanical energy into electrical energy or electrical energy into mechanical energy. It uses piezoelectricity The effect realizes the conversion of energy. piezoelectricity The effect refers to that some crystals will produce charge separation under the action of external force, resulting in potential difference. piezoelectricity The transducer has the following characteristics: 1. High efficiency: piezoelectricity The transducer can convert mechanical energy into electrical energy or electrical energy into mechanical energy with high conversion efficiency. 2. Broadband: piezoelectricity The transducer has a wide frequency response range and can adapt to signals of different frequencies. 3. High sensitivity: piezoelectricity The transducer has high sensitivity to external signals. 4. Rapid response: piezoelectricity The response speed of the transducer
Date: September 20, 2023 Reading: 1496
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low piezoelectricity The current transformer is used for measuring and protecting piezoelectricity Electrical equipment of the road. It can change high current into low current for easy measurement, calculation and control. 1、 Basic structure: low piezoelectricity Current transformer usually consists of iron core, primary winding, secondary winding, shell and insulation material. The iron core is the core part of EPM7128AETC144-10 transformer, which is usually made of silicon steel laminations to improve the permeability and reduce the hysteresis loss. The primary winding is usually composed of multi strand or single strand wires, which are used to connect to high current circuits. The secondary winding is usually composed of thin wires for outputting low current signals. The enclosure is usually made of insulating material to protect the winding and iron core, and to provide
Date: September 1, 2023 Reading: 1461
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piezoelectricity The sensor uses piezoelectricity The effect is measured by the sensor. piezoelectricity The effect refers to that some crystal materials will generate electric charges when subjected to pressure or strain, which will result in potential difference. This phenomenon is called piezoelectricity effect. piezoelectricity The sensor STM8S003K3T6C uses this effect to convert physical quantities such as pressure, force and acceleration into electrical signals for measurement. piezoelectricity The characteristics of the sensor are as follows: 1. High sensitivity: piezoelectricity The sensitivity of the sensor can reach several hundred mV/kPa, or even higher. 2. Frequency response width: piezoelectricity The frequency response range of the sensor is wide, ranging from hundreds of Hz to thousands of Hz. 3. Good temperature stability: piezoelectricity The temperature stability of the sensor is good, and it can
Date: July 3, 2023 Reading: 1573
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Features • Low offset voltage: max. 50 μ V • Low offset voltage drift: max. 0.6 μ V/° C • Extremely low offset current: max. 100 pA • Very high open-loop gain: min. 2000 V/mV • Low power current (per amplifier) : 625 μ A max. • Operates from ± 2 V to ± 20 V power supply • High common mode rejection: 120 dB minimum application • Strain gauge and bridge amplifier • High stability thermocouple amplifier • Instrument amplifier&# 8226
Date: November 4, 2020 Reading: 37645
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Voltage spike is the inductance of output filter capacitor and its related wiring caused by the fast switching action of output switch and diode and parasitism. To reduce these voltage spikes, capacitors should be designed for switching regulator applications, and lead lengths must be kept short. Wiring inductance, stray capacitance, and oscilloscope probes used to evaluate these transients all contribute to the amplitude of these spikes. When the switching regulator operates in continuous mode, the inductor current waveform ranges from triangular to zigzag (depending on the input voltage). For a given input and output voltage, the peak to peak amplitude of the inductance current waveform remains unchanged. When the load current increases or decreases, the whole sawtooth current waveform also
Date: October 29, 2020 Reading: 34986
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Function description LM2595 series voltage regulators provide integrated circuit adjustable output voltage range of all active functions for monolithic 3.3V, 5V, 12V and adjustable output versions, used for step-down (step-down) switch regulators, capable of 1.2V to 37V ± 4% of the maximum line passing and load driving 1A load, with excellent line and load conditions. These devices have fixed outputs and provide TO-220 and TO-263 (surface voltage is 3.3V, 5V, 12V and adjustable output Mount) software package versions. Ensure that 1A output load current requires a minimum number of external input voltage components with a range of up to 40V. These regulators are simple to use, including internal frequency
Date: October 29, 2020 Reading: 34592
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General description LM2612 buck DC-DC converter is a single lithium ion ultra-low piezoelectricity Road powered mobile phones. It provides up to 400 mA (300 mA for Class B), exceeding the input voltage range of 2.8V to 5.5V. The pin programmable output voltage is 1.05V, 1.3V, 1.5V or 1.8V, which allows adjustment of MPU voltage options without redesign or external feedback resistance. The device has three pin selectable modes to maximize battery life for mobile phones and similar portable applications. Low noise PWM mode provides 600kHz fixed frequency to reduce RF interference and data acquisition during operation at full power operation
Date: September 10th, 2020 Reading: 2039
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This two bit non vertical converter uses two independent configurable power rails. Port A is designed to track VCCA. The VCCA accepts any supply voltage from 1.65 V to 3.6 V. The B port is designed to track the VCCB. Must be less than or equal to VCCB. The VCCB accepts any supply voltage from 2.3 V to 5.5 V. This allows low-voltage bi-directional switching between 1.8-V, 2.5-V, 3.3-V, and 5-V voltage nodes. When the Output Enable (OE) input is low, all outputs are in a high impedance state. In order to ensure the high impedance state during power on or power off, OE shall be through pull-down resistor; The minimum value of the resistor is determined by
Date: May 6, 2020 Reading: 2448
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ISL6740, ISL6741 series adjustable frequency, low power, pulse width modulation (PWM) voltage mode (ISL6740) current mode (ISL6741) controller is designed for full bridge half bridge power conversion application range bridging and push pull configuration. These controllers provide a very flexible oscillator that can precisely control frequency, duty cycle and dead time. This advanced BiCMOS design has low operating current, adjustable switching frequency up to 1MHz, adjustable soft start, internal and external overtemperature protection, fault notification and two-way synchronization signals, allowing the oscillator to be locked to the clock of parallel units or external noise sensitive applications. 1. Add tapes and reels
Date: April 7, 2020 Reading: 1571
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Features • Logic level input • Compatible with 3V microcontroller • ESD protection • Automatic restart thermal shutdown • Overload protection • Short circuit protection • Overvoltage protection • Turn on load detection (during shutdown) • Current limiting • Direct parallel control of inputs • Freeze multiplexing function • General fault flags • Very low standby quiescent current • Applications with switching frequencies up to 50kHz • Various resistors in switching applications
Date: March 30, 2020 Reading: 1830
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Polarity transformation chopper switching stability piezoelectricity As the name implies, the polarity of the output voltage and the input voltage of the polarity transformation power supply are opposite, but this is only one aspect of the problem. The absolute value of the output voltage must be higher than the absolute value of the input voltage, otherwise it will be confused with the step-down switching power supply. From then on, it is not difficult to see that the polarity transformation chopper switching power supply is a combination of step-down power supply and step-up power supply. As shown in the figure, the polarity transformation chopper switching stability piezoelectricity Source schematic. When the switch adjusts the conduction of the component crystal triode VT, the input voltage Ui is applied to the inductance L to generate current, store energy, and reverse cut-off of the diode VD. When transistor VT is cut off, the current on inductance L is
Date: March 4, 2020 Reading: 1956
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Nanxin SC8551 - the first high piezoelectricity The charging efficiency of Nanxin DCDCIC1 is up to 98% with the IC charged by the charging pump Introduction With the popularity of 4G networks and the arrival of the 5G era, the battery capacity of mobile phones is increasing to meet the high energy consumption needs of various applications such as mobile Internet. With traditional charging technology, the charging time is getting longer and longer, which cannot meet the daily needs. Fast charging technology has emerged as the times require, which can allow people to use the fragmented time to quickly restore power, and has gradually become the standard configuration of more and more mobile phones. Fast charging has two different technical routes: high voltage small current fast charging and low voltage large current fast charging. High pressure fast charging is represented by Qualcomm. Qualcomm took the lead in introducing
Date: December 17, 2019 Reading: 2537
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Characteristic peak efficiency>85% Low electromagnetic interference Low ripple Output voltage 1.3V/1.8V Input voltage range: 2.2V to 5.5V Output current: up to 250mA Output voltage accuracy ± 2.5% 30 μ A Operating current Shutdown mode ICC<1 μ A 2MHz Operating frequency Shutdown output and input isolation Soft start limit inrush current Short circuit and overheat protection Minimum number of external components 6 lead 3x3mm MLP packaging Application mobile phone The core supply of the next generation of processors for handheld computers, portable electronic devices, low-voltage DC bus digital cameras, digital signal processors, power supplies, FAN5601 is an advanced third-generation switching capacitor, using Fai
Date: December 9, 2019 Reading: 1844
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The dual quadrant power supply can provide positive or negative voltage for the same output port, and the LT8714 4 quadrant controller can easily produce this power supply. The dual quadrant power supply shown here can be used for a variety of applications, ranging from glass film (changing the polarity will change the arrangement of crystal molecules) to testing and measuring equipment. Lt8714 data manual describes the working mode of dual quadrant power supply in the first quadrant (positive input, positive output) and the third quadrant (positive input, negative output). Note that in both quadrants, the power supply provides the source current, so the power supply will be generated instead of the receiving power supply. The second quadrant and the fourth phenomenon generate a receiving power supply. Circuit description and function diagram 1
Date: December 7, 2019 Reading: 2475
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A voltage regulator is a device that stabilizes the output voltage. Regulator regulation piezoelectricity Road, control circuit, servo motor, etc. When the input voltage or load changes, the control circuit samples, compares, amplifies, and then drives the servo motor to rotate, changing the position of the voltage regulator carbon brush. By automatically adjusting the coil turn ratio, the output voltage is stable. 7805 is the most commonly used voltage regulator chip. It is easy to use. With a very simple circuit, you can input a DC regulator piezoelectricity Source, its output voltage is exactly 5v. Operating principle of 7805 voltage regulator power supply The voltage regulator diode VD1 is connected in series between the two pins of the 78XX voltage regulator and the ground, so that the output voltage Uo can be certain
Date: December 4, 2019 Reading: 3506
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Several stabilities piezoelectricity Summary, analysis and stability of road piezoelectricity Power supply circuit, stabilized diode piezoelectricity The function of the circuit is to stabilize the output voltage of the power circuit. For various reasons, the supply voltage of the AC power grid is often unstable, so the DC voltage output by the rectifier and filter circuit will also be unstable. On the other hand, because the rectifier and filter circuit must have internal resistance, when the load current changes, the output voltage will also be affected and changed. In order to obtain a stable DC voltage, it is necessary to adopt a stable piezoelectricity Road. 1、 What is zener diode? 1. Introduction of zener diode. It is a kind of zener diode. It is special. The basic structure is the same as that of ordinary diode. There is also a PN junction
Date: December 4, 2019 Reading: 1961
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Features ＊ Optional input/output range of 4MA to 20mA transmitter: 0V to+5V, 0V to+10V input 0mA to 20mA, 5mA to 25mA output Other range ＊ Maximum nonlinear 0.005%, 14 bits * precision+10V reference output * single power supply operation * wide power supply range: 13.5V to 40V description application * industrial process control * pressure/temperature transmitter * current bridge excitation * grounding sensor circuit current source reference for data acquisition * programmable current source test equipment power plant/energy system XTR110 is a precision power designed for analog signal transmission piezoelectricity Stream converter. It accepts 0 to 5V or 0 to 10V
Date: October 15, 2019 Reading: 1773
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Functional features: 95% efficiency, synchronous operation, adjustable output voltage, input voltage range from 0.8V to vin-14.5V to 5.5V, up to 2A output current, fixed frequency, 1.3 MHz pulse width modulation operation, 100% duty cycle, low dropout operation (LDO), soft start function, excellent load transient response, good signs, overvoltage and undervoltage blocking Short circuit and thermal shutdown protection 3x3mm six lead MLP packaging application: hard disk drive set-top box load point power notebook computer communication equipment description: fan 2013 is an efficient and low-noise product, low-voltage synchronous pulse width modulation (pwm) current mode dc dc converter application
Date: September 30, 2019 Reading: 1611
