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Use a multimeter to judge the quality of capacitors: Depending on the capacity of the electrolytic capacitor, the R 10, R 100, or R 1K range of the multimeter is usually selected for testing and judg...[Details]
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There are many types of special torpedo test equipment, involving multiple parameters such as AC voltage, resistance, time frequency, signal, etc. In the past, these test equipment were calibrated ...[Details]
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Wireless transmission has become an application trend in embedded systems that require data transmission. GPRS (General Packet Radio Service) has the advantages of always being online, fast login, ...[Details]
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1. What is digital power supply? What is the essential difference between digital power supply and analog power supply?
The essence of the so-called digital power supply is that the PWM regu...[Details]
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In Arduino, you can use AnalogWrite to use hardware to generate 490Hz/980Hz PWM waves, and set the duty cycle according to parameters. Students who don't know this can go to AnalogWrite to learn. Sec...[Details]
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Tailless TV Technology
Haier's tailless TV eliminates the need for power cables by using wireless power supply technology that transmits power wirelessly, and because it is embedded with high-s...[Details]
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First of all, in stm32, the timer-related library functions are mainly concentrated in the firmware library files stm32f10x_tim.h and stm32f10x_tim.c, so when processing the timer, you need to load t...[Details]
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We have always had some doubts about Volkswagen making batteries. Recently, the new battery factory in Salzgitter, Germany, broke ground. This is Volkswagen's first European battery factory. The tota...[Details]
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Apple China today officially announced the repair costs for the entire iPhone 11 series. Among them, screen repair is the most expensive, with the highest cost being 2,559 yuan. According to data off...[Details]
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Using self-bias circuit to realize stable phototransistor light receiving circuit
Function of the circuit
In the optical receiving circuit, if the external light causes malfu...[Details]
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Currently, most automobiles use LEDs and CCFLs as backlights, and both require special power supplies. This application note discusses power supply solutions for LED and CCFL light sources, w...[Details]
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The following figure is the circuit diagram of a 20-band stereo graphic equalizer, which will control the audio signal within a specific frequency range.
The power supply used in this ci...[Details]
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This article starts from the working principle of the color display line output power supply circuit, analyzes the characteristics of different switching power supplies, and deciphers the color dis...[Details]
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Diodes Incorporated (Diodes) has introduced a series of high-precision current shunt detectors suitable for measuring small sense voltages over a wide common-mode voltage range in electric veh...[Details]
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According to foreign media reports, Ford Motor Company has applied for a new patent for its advanced interior lighting system, which may be used in future Ford vehicles. The patent was submitted on...[Details]