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2018 - 03 - 09
点击次数: 61
Portable electronics are growing rapidly, from mobile phones and MP3 players to PDAs, personal DVD players, and more traditional laptops, and people are revisiting many aspects of consumer and profess...
2013 - 11 - 29
点击次数: 33
The lighting industry continues to push inductive loads, and the trouble is that the inductive reactance generated by the system is reversed, which reduces the efficiency of the system. PFC solves the...
2013 - 11 - 29
点击次数: 31
This paper proposes a technical solution using decentralized detection, centralized control and visual management, using embedded systems, wireless communication, computer software and Web technologie...
2013 - 11 - 29
点击次数: 37
The TC4011BP (Q801) is connected to two RS flip-flops. Among them, RS1 is used to control the operation of the compressor, and RS2 is used to control the defrosting work. The working process is as fol...
2013 - 11 - 29
点击次数: 30
The electronic temperature controller not only has the same temperature characteristics as the pressure type thermostat, but also can easily change the temperature characteristics according to the req...
2019 - 05 - 07
点击次数: 31
Among many lithium ion protection schemes, multi-level protection schemes have been widely adopted to obtain high safety of lithium ion batteries. Usually multi-level protection includes active and pa...
2013 - 11 - 30
点击次数: 34
The temperature sensors on the car are mostly negative temperature coefficient thermistors, such as the intake air temperature sensor of the engine,Coolant temperature sensor, oil temperature sensor, ...
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说明: Portable electronics are growing rapidly, from mobile phones and MP3 players to PDAs, personal DVD players, and more traditional laptops, and people are revisiting many aspects of consumer and professional product design.  This change is most evident in battery technology. Users want batteries to meet increasingly complex application needs, so they need more current and longer working hours. At the same time, the demand for small, lightweight products is also very strong, and the battery accounts for a considerable proportion of the volume and weight of any device. Therefore, manufacturers pay great attention to reducing their volume and weight. Another point is the requirement for fast charging, that is, reducing the time that the user waits for charging, and maximizing the advantage...
Release: 2018 - 03 - 27
Click: 17
说明: Among many lithium ion protection schemes, multi-level protection schemes have been widely adopted to obtain high safety of lithium ion batteries. Usually multi-level protection includes active and passive protection schemes. The basic parameters of control are mostly voltage, current and temperature. In recent years, due to the limited increase in energy density, in order to meet the requirements of customers, rapid charging has rapidly spread. From the perspective of design habits and certification testing, customers tend to pay more attention to voltage monitoring and protection, while ignoring the passive protection devices that were used before.Over temperature protection performance of PTC and MHP-TA, they use two sets of IC+Mos active protection scheme and NTCTemperature monitoring....
Release: 2019 - 05 - 07
Click: 31
说明: The temperature sensors on the car are mostly negative temperature coefficient thermistors, such as the intake air temperature sensor of the engine,Coolant temperature sensor, oil temperature sensor, oil temperature sensor for automatic transmission and continuously variable transmission, dual clutch transmission G93 transmission oil temperature sensor for monitoring transmission oil sump oil temperature, G509 temperature sensor for monitoring transmission clutch oil temperature, The indoor temperature sensor, the ambient temperature sensor, the evaporator temperature sensor, the suspension air pump temperature sensor, etc. of the air conditioner are all negative temperature coefficient thermistors. It is characterized by the higher the temperature of the measuring point, the lower the res...
Release: 2013 - 11 - 30
Click: 34
说明: In the era of rapid development of electronic technology, automotive control systems are gradually moving toward electronic control systems, and the most important one of these electronic control systems is sensor application technology. In the sensor market, traditional sensors are gradually being phased out. The current state of the art is an intelligent, multi-functional, miniaturized, integrated sensor, and this sensor will gradually become an indispensable part of automotive sensors.Since the German Carl Mercedes developed the world's first car in 1885, the car has gradually become an indispensable means of transportation in people's lives. However, in today's era of rapid development of science and technology and progressive social progress, the control system of automobiles has grad...
Release: 2013 - 11 - 30
Click: 29
说明: Nowadays, most power supply departments have required the newly installed single-phase watt-hour meter to withstand high voltage (such as 380V voltage) in order to prevent damage to the watt-hour meter due to incorrect connection of the power grid or artificially use the over-voltage power supply method to destroy the watt-hour meter. ) For a certain period of time (such as 4h) without damage, if the input circuit of the single-phase meter is not processed, the input high voltage will cause the watt-hour meter to burn out in a short time. As long as a suitable PTC thermistor is connected in series with the input end of the transformer for overcurrent protection, and the external voltage is mainly applied to the PTC thermistor, the linear transformer can be prevented from being heated and d...
Release: 2018 - 03 - 27
Click: 19
说明: Temperature sensor temperatureThe transducer converts the temperature into an available output signal by utilizing the laws of various physical properties of the substance as a function of temperature. The temperature sensor is the core part of the temperature measuring instrument and has a wide variety. According to the measurement method, it can be divided into two types: contact type and non-contact type. According to the characteristics of sensor materials and electronic components, it can be divided into two types: thermal resistance and thermocouple. The modern temperature sensor is very small in shape, which makes it widely used in various fields of production practice, and also provides countless conveniences and functions for our lives.Temperature sensor time constant and hysteres...
Release: 2018 - 03 - 27
Click: 24
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