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Writing efficient and concise C language code is the goal pursued by many software engineers. This article is to explain some of the experiences and lessons learned in programming. The first trick: t...[Details]
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We know that thyristors have an important characteristic parameter - the critical rise rate of off-state voltage dlv/dlt. It indicates the minimum voltage rise rate that causes the thyristor to switch...[Details]
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The aggressive Huawei has felt the shock in the trade friction, and the "old guy" Samsung has also had a chance to breathe. This time, it wants to return to the domestic market again. Since 2018, S...[Details]
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Usually we can easily find the base b of the triode, but which of the other two electrodes is the collector c and which is the emitter e? At this time, we can determine the collector c and emitter e ...[Details]
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The basic circuit of a low dropout linear regulator (LDO) is shown in Figure 1-1. The circuit consists of a series adjustment tube VT, sampling resistors R1 and R2, and a comparison amplifier...[Details]
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Components of permanent magnet synchronous motor: stator, permanent magnet rotor, position sensor, electronic commutation switch, etc.
Permanent magnet synchronous motors have the advantages o...[Details]
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Infinitum chose to produce industrial motors, a market with huge scale. Infinitum's solution (right) takes up less space than traditional wound motors. (Infinitum)
The development of ele...[Details]
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Analyzing a
power supply
usually starts with the input. 220V AC input, one end passes through a 4007 half-wave rectifier
The other end passes through a 10 ohm
resistor
and is filtered ...[Details]
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At present, the power supply of color TV sets is all electronic switch-type voltage-stabilized power supply. When the mains voltage is out of phase and causes 380V voltage input, the action speed of i...[Details]
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Researchers at the University of Leeds in the UK have successfully developed a micro-magnetic controller with a diameter of only 2 mm (as shown below), which can penetrate deep into the lungs for c...[Details]
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Strategy Analytics' latest research report, "Global Smart Home Market 2019", predicts that by 2019, consumer spending on smart home-related hardware, services and installation fees will reach $103 bi...[Details]
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The picture below shows the SD card part of the Wanli board
SD_PWR is connected to PD10 through a control
P-Channel 2.5-V (GS) MOSFET controls the power supply of the SD card
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Field Emission Display
The full name of FED is Field Emission Display. According to the electron emission source, FED can be divided into CNT (carbon nanotube type), SED (surface co...[Details]
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Translated from - cnet Comcast's mobile service can now connect to Verizon's millimeter wave 5G network. Comcast's cell phone service, Xfinity Mobile, will use Verizon's network, and they are...[Details]
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Target
The purpose of this experiment is to familiarize you with the impedance matching operation of a transformer coupled amplifier.
Background
...[Details]