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In the previous issues, we introduced the testing of WLAN terminals. In this issue, we will talk about the conduction test items of WLAN AP.
The test environment is shown in the figure below. The...[Details]
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A rectifier bridge is a rectifier tube sealed in a shell. It is divided into full bridge and half bridge. A full bridge is to seal the four diodes of the connected bridge rectifier circuit together. ...[Details]
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The new sandwiched and drilled lithium-ion battery has a 10-fold increase in energy storage and charging speed.
For years, batteries have been the weak link in most consumer electron...[Details]
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When measuring the chopped AC power, the voltage values displayed by Fluke 15B and 187 are different. One is an entry-level multimeter and the other is a high-end multimeter, so there is a big diff...[Details]
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When it comes to scroll mode, you may feel unfamiliar with it. Let's first understand what scroll mode is.
Figure 1 Screen display in scroll mode
In roll mode, the oscilloscope samples wav...[Details]
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Recently, Tianyancha showed that Wuhan 1810 Enterprise Management Co., Ltd. was established on November 24, 2021 with a registered capital of 2 billion yuan. The legal representative is Lin Shiwei. T...[Details]
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The voltage-frequency converter can be constructed by using only the voltage-controlled oscillator in the phase-locked loop. The characteristic of the circuit is that when the 12th pin is suspended a...[Details]
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This mixer circuit uses the LM3900 IC, but it is not a professional audio DJ mixer. This IC contains four integrated Norton amplifiers. The advantage of using four operational amplifiers is that th...[Details]
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Fiber laser technology for medical diagnosis
Fiber laser marking systems are driving advances in animal health care. To reproduce a Data Matrix code on a polypropylene medical ...[Details]
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OPPO recently had two models pass the 3C certification, which support 65W fast charging. According to domestic digital bloggers, these two models are the new OPPO Reno 7 series models, and the price ...[Details]
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p0: 8-bit bidirectional I/O port, capable of driving 8 TTLs when output, open-drain port
p1: 8-bit bidirectional I/O port, can drive 4 TTL as output, with internal pull-up resistor
p2: 8-...[Details]
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In electronic circuit design, EMC and EMI are issues that developers will always face. No matter how efficient the circuit is, it will be useless if it cannot meet the EMC requirements. Therefore, how...[Details]
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Introduction: This solution uses infrared remote control to better realize the dimming control of household LED lighting. The advantages of ATmega8 and infrared remote control can be further utilized...[Details]
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Fifteen years ago, if there was a mobile phone that created an era, it would most likely be the Moto V3. This Motorola phone, with its all-metal shell, ultra-thin design, and "blade warrior" appearan...[Details]
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Recently, according to a report by Hubei Satellite TV, the construction of the 15 billion yuan Huaxing Optoelectronics T5 project is in the final sprint and is about to see the topping-out of the mai...[Details]
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