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1 Introduction
There have been many studies on the detection and protection of power grid short circuit and line fault. The short circuit, overload and overvoltage protectors on the market have...[Details]
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First, let's briefly describe the working process of the watchdog. The watchdog is actually a timer with a counter inside. Every time a clock signal arrives, the counter register decreases by one. I...[Details]
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A spectrum analyzer is a test and measurement device that is mainly used for frequency domain analysis of RF and microwave signals, including measuring signal power, frequency, distortion, etc. Its p...[Details]
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1. Introduction
Digital voltmeter uses digital measurement technology to convert analog quantity into digital quantity and display it. Due to its advantages of high measurement accuracy and str...[Details]
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China, July 9, 2021 - STMicroelectronics' ALED6000 monolithic automotive-grade LED driver with integrated DC/DC converter is a low BoM (bill of materials cost) and flexible automotive lighting soluti...[Details]
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Preface
The main control board STM32F302R8+driver board X-NUCLEO-IHM07M1+brushless DC motor WR36BL61 adopts six-step commutation method to realize the forward and reverse drive of the motor.
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Recently, market news said that Beijing Zhimi Technology plans to jointly develop a pure electric hard-core SUV with Chery New Energy iCar. The car is expected to be priced at around 100,000 yuan and...[Details]
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3.4.3 Line voltage regulation curve using compensation circuit
Figure 18 LED current line voltage regulation using compensation circuit
3.4.4 Startup output waveform
Figure 19 110VAC start...[Details]
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Although the sales of iPhone 12 mini are not ideal, Apple will not give up for the time being. However, it is likely that we will not see it next year. According to the summary of previously...[Details]
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An encoder is a device that compiles and converts signals (such as bit streams) or data into a signal form that can be used for communication, transmission and storage. The encoder converts angular...[Details]
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Introduction High-intensity discharge (HID) lamps were originally designed for outdoor and industrial applications, but have now expanded into indoor applications such as office lighting and retail l...[Details]
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First put the circuit diagram, pay attention to the selection of capacitors on both sides of the crystal oscillator, and pay attention to the resistance value between the LED and the voltage. The p...[Details]
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4 Analysis and processing
We know that it is not enough to just have the raw test data transmitted to the host computer. Engineers are concerned about the results of interest in the test, such ...[Details]
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Digital power meter is a multifunctional intelligent meter with programmable measurement, display, digital communication and electric energy pulse transmission output. It can complete functions such ...[Details]
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In most processors after ARM V4 and V4T, the interrupt vector table can have two locations: one is 0 and the other is 0xffff0000. This can be controlled by the V bit (bit ) in the CP15 coprocessor ...[Details]
Linux and Android
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