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Anyone who has studied MCU technology knows that MCU key input can generally be divided into two types: simple independent key input and column keyboard input. Figure 1 is a simple independent keyboar...[Details]
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Trigger Principle Analysis
The JK flip-flop is a circuit unit in a digital circuit flip-flop.
The JK flip-flop has the functions of set 0, set 1, hold and flip. Among all kinds of integrated flip...[Details]
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The wireless energy charger transmits electrical energy to the light bulb (battery) wirelessly through a coil. This wireless energy charger consists of two parts: an energy sending unit and an ener...[Details]
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The LED can be turned off by using the shutdown control pin of MAX684 or the enable control pin of MAX1916. For white LEDs with a forward voltage of 3.5 to 4.2V (at 20mA), a boost converter is usuall...[Details]
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The Ministry of Industry and Information Technology issued Document No. 25 of the Ministry of Industry and Information Technology's Communications "Notice on Deepening the Comprehensive Development ...[Details]
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GPIO is the channel through which STM32 interacts with peripherals. The protection diode of the GPIO port can be connected to two DC voltages: 3.3V or 5V (pins marked with FT), which allows the IO po...[Details]
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In actual use, the performance and technical deficiencies of the power circuit and accessories of trucks are obvious. To this end, we have developed a multifunctional electronic grounding control s...[Details]
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As one of the indispensable products in the field of electronic testing and maintenance, the digital multimeter has an increasingly wide range of applications. Digital multimeter
is
...[Details]
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The topics discussed in this series of articles are all completed in the Keil uVision3 integrated compilation environment, targeting the 51 series of microcontrollers. Next, I will introduce a header...[Details]
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China Energy Storage Network News:
The primary energy of the new power system will change from storable and transportable fossil energy to wind and solar energy that cannot be stored and tr...[Details]
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自从人类发明了转轮,我们就希望了解如何通过改变精度提高转轮转动效率。在过去几个世纪,科学家和工程师已经研发了许多方法来实现此目标,期间轮-轴系统的基本原理得到了广泛应用,从汽车、音量旋钮、各种机械形式的齿轮到简陋的手推车,几乎每种机械系统均采用了这一原理 。
经过多个时代的探索,人们发现让转轮高效运转的最重要因素并非转轮本身(为何不彻底改造它呢?),而是转轮的轴角。目前测量和优化轴角的最有效...[Details]
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The 6430 sub-fA programmable source meter integrates the voltage and current source and measurement functions of Keithley source meter products and source measurement units (SMU). It has higher sensi...[Details]
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Technical requirements: Input voltage Vin: 90-253Vac Output voltage Vo: 27.6V Output current Io: 6A Output power Po: 166W Efficiency η: 0.85 Input Power Pin: 195W Input filter capacitor calcula...[Details]
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SX1212
is an ultra-low power single-chip wireless chip launched by SEMTECH, with a frequency range from 300MHz to 510MHz. SX1212 has been optimized to have very low receiving power consumption, w...[Details]
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1 Overview
Traditional car tachometers have two functions: one is to indicate the instantaneous speed of the car with a pointer, and the other is to record the accumulated mileage of t...[Details]