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What is the benefit from scrap PCB boards recycling?

2019-04-30

As you probably know, scrap PCB is a mixture of glass fiber fortified resinand a variety of metals, which is a typical electronic waste. That’s to say, if these electronic waste isn’t properly handled, which will not only lead to a large loss of useful re

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What is the impedance of an inductor?

2019-04-30

You know, at low frequency, the impedance of an inductor coil is proportional to the frequency. However, as the frequency turns high, the impedance of the whole inductor coil will decrease rapidly due to the existence of the inductance distributed capacit

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What is an electronic component?

2019-04-29

As you probably know, Electronic component is a part of machine, instrument and so on, which can be widely used in the like products.

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What is the purpose of resistors and capacitors within an AC to DC power supply?

2019-04-29

When it comes to the purpose of the resistors and capacitors in the power circuit, it depends on the specific situation and their own features.

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What is the voltage across an LED in a circuit?

2019-04-28

There are five working voltage of common various colors LED for your reference: White LED is 3.0–3.4V; Red LED is 1.8–2.2V; Blue LED is 3.0–3.2V; Green LED is 2.9–3.1V; Yellow LED is 1.8–2.0V.

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Can a single transistor fail and kill the CPU?

2019-04-28

Not really. Because every signal circuit is designed as double redundancy, which is used to protect the circuit in a better way. Let alone the complicated CPU.

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Is the ground wire necessary?

2019-04-25

In general, as long as you connect the ground wire in a circuit which can transfer high voltage into the ground directly especially in a state of hazards. Therefore, ground wire is often called as safety loop wire just like a lifeline.

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How can damage caused by static electricity on a PCB be repaired?

2019-04-25

Considering to the bad influence of static electricity, in fact, PCB designers tend to prevent it in advance. Exactly speaking, there are three differnt precautions during the PCB design stage: First is using insulation; Second is enhancing the electrosta

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What is the difference between a capacitor and supercapacitor based on parameter

2019-04-23

Compared to the ordinary capacitor, supercapacitor has a coulple of pros such as charging quickly, long service life for cycle use and green environmental protection on account of its no pollution in the raw material composition and the process of product

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How do you find where a circuit board was manufactured?

2019-04-23

In general, PCB manufacturers tend to etch their own UL Number on the circuit board. That’s to say, it’s virtually possible for us to check and find corrsponding PCB factory information. Then we are gonna know where a circuit board was manufactured in the

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