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Traditional lighting technology has low luminous efficiency (generally incandescent lamps have a luminous efficiency of about 20%, and ordinary energy-saving lamps have a luminous efficiency of abo...[Details]
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This design is implemented on a smartphone, through Bluetooth controller software, to control the fan on, off, forward and reverse. The minimum system module of the microcontroller is the core of the...[Details]
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(1) Characteristics of a pointer-type multimeter for detecting AC voltage. When a pointer-type multimeter is used to detect AC voltage, since the internal circuit of the pointer-type multimeter first...[Details]
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There is a type of instrument in industrial on-site liquid level detection that detects the liquid level by placing the sensor into the liquid to be measured based on the buoyancy it receives. This t...[Details]
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Bimetallic thermometers have a wide range of applications, and different application fields have different requirements for bimetallic thermometers, so everyone must pay attention when purchasing. S...[Details]
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Varistor is a resistor device with nonlinear volt-ampere characteristics. It is a protection device. Its English name is "Voltage Dependent Resistor", abbreviated as "VDR", or "Varistor". It is sen...[Details]
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Millimeter-wave radar chips have always been almost monopolized by foreign manufacturers such as NXP, Infineon, and Renesas Electronics. China has not yet formed a scale in the field of millimeter-wa...[Details]
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MAX6654 is a dual-channel intelligent temperature sensor
produced by MAXIM, USA
, which can measure remote temperature and local temperature at the same time. It uses SMBUS bus interf...[Details]
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SCLK BIT P1.0 ;DS1302 clock port P1.0 IO BIT P1.1 ;DS1302 data port P1.1
RST BIT P1.2 ;DS1302 chip select port P1.2 NOW DATA 40H ORG 0 JMP Reset ORG 100H Reset: CALL DS1302_Initial ;I...[Details]
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On November 23, China's RISC-V software and hardware ecosystem leader Sai Fang Technology officially released its independently developed on-chip consistent interconnection IP - Star Link-700 (StarLi...[Details]
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LED调光能以两种方式进行：模拟调光和脉冲宽度调制 (PWM) 调光。模拟调光简单地调节 LED 串的 DC 电流，以改变 LED 的光输出，而 PWM 调光则改变 LED 串中恒定电流的占空比，以有效改变 LED 串中的平均电流，以此实现调光。尽管模拟调光的简单性富有吸引力，但是这种方式对很多应用不合适，因为模拟调光仅在 10:1 的亮度调节时，就损失超过 25% 的准确度，而且这种调光方式使...[Details]
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The basic principle of the self-excited feedback switching power supply is shown in the figure. When the input voltage is applied, the current flows to the base of the switch tube VTl through Rg,...[Details]
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July 7 – Huawei announced today that it has reached a patent licensing agreement with a supplier of Volkswagen Group (“Volkswagen”). The agreement includes a license for Huawei's 4G standard essent...[Details]
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What is the wiring method of the DC resistance tester? As an instrument often used in the power testing industry, the DC resistance tester has always been favored by the majority of power workers. It...[Details]
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In the AI era, from computational intelligence to perceptual intelligence, cognitive intelligence and future general artificial intelligence, the development of SAIC Volkswagen is highly time-mat...[Details]
Analogue and Mixed Signal
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