Applications Case
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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: 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
说明: Application principleWhen the motor starts, it must overcome its own inertia, and at the same time overcome the reaction force of the load (such as the refrigerant reaction must overcome the reaction force of the refrigerant when the refrigerator compressor starts), so the motor needs a large current and torque when starting. When the rotation is normal, in order to save energy, the required torque has to be greatly reduced. Add a set of auxiliary coils to the motor, only work at startup, and it will open after normal. Connect the PTC thermistor in series to start the auxiliary coil. After starting, the PTC thermistor enters the high-impedance cut-off auxiliary coil, which can achieve this effect.Electronic ballast, energy-saving lamp preheating soft start PTC thermistorexternal structureA...
Release: 2018 - 03 - 27
Click: 19
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