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Touch the Start/Measure key to turn on the rangefinder.
Use the plus or minus key to change the measurement reference edge as needed (valid only for single measurement), A—front edge; B—instrument su...[Details]
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Inverter power supplies can be divided into power frequency conversion and high frequency conversion according to the conversion method. Power frequency conversion uses discrete devices or integrat...[Details]
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//Include the required header files #include avr/io.h #include avr/interrupt.h #include avr/signal.h /*------Macro definition------*/ #define uchar unsigned char #define uint unsigned int #defi...[Details]
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China Energy Storage Network News:
"In 2021, the annual market-based trading electricity volume was 3.7 trillion kWh, a year-on-year increase of 17.2%, accounting for 44.6% of the total ele...[Details]
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I originally planned to make a 6SN7 two-stage tube for FD422. I checked the price online and found that it was 45 yuan per tube and it was made in China. It was almost equivalent to my pair of FD4...[Details]
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Recently, various provinces have launched massive investment plans to cope with the impact of the COVID-19 epidemic and the downward pressure on the economy. At the same time, the call for launchin...[Details]
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This article introduces a driver reference design for AR111 LED lamps in a 2-in-parallel-5-in-series (5S2P) combination.
Overview
This reference design uses the MAX16819 as the main contr...[Details]
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According to Jiwei.com, on July 22, according to data from Russian retailers, in June 2021, Xiaomi smartphones ranked first in sales in the Russian market, and the company and its sub-brand Poco's sh...[Details]
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The TL13007S mainly uses the ohmmeter of a multimeter to detect ordinary resistors. By measuring the resistance value, it can determine whether there is a circuit breaker, short circuit, resistance c...[Details]
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1. Hardware Solution This design uses the AT89C51 microcontroller as the core component. This design consists of three parts: control system, display module, and key drive module. The main program, i...[Details]
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The circuit is shown in the figure below. UC3842 is a single-ended switching power supply control chip. Pin ① is the internal error amplifier output terminal, and a negative feedback network is con...[Details]
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Before the Ministry of Construction required water supply companies to implement "one meter per household", most users were measured by the total meter and did not deal directly with water supply ...[Details]
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When the intelligent electromagnetic flowmeter is first used or during use, the measurement value is not accurate and the measurement accuracy is poor. What is the reason? In fact, there are many rea...[Details]
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Instructions: 1. Reliably ground the ground terminal of the instrument and connect the power supply. Turn on the power switch and the display will show: Display wiring mode Set PT ratio Start measuri...[Details]
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Many mobile phone brand manufacturers have released new products one after another, including smart watches, TWS headphones, smart bracelets and other new wearable devices. The release of these new...[Details]