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Why does open-circuit test give core loss/short-circuit test give copper loss?

2019-06-26

Iron core losses: The magnetic flux in the transformer is flowing on the iron core, and the iron core has magnetoresistance to the magnetic flux, which will generate heat so that this is why open-circuit test gives iron core losses; Copper losses: Coil

Why are vias needed in electronic circuits?

2019-06-26

Honestly, it mainly refers to the function of vias. As you probably know, vias are mainly used to connect lines of each layer. That’s to say, after metallizing treatment, the circuit boards on both sides of vias are connected together.

What is the future of Rigid Flex Circuit Boards market?

2019-06-25

The electronics products of rigid-flex circuit boards, with the characteristics of light, thin, short and small, which have played an important role in the field of electronic information industry.

Why isn't copper used for high voltage lines?

2019-06-25

It must be aluminum instead of copper. You know what? On one hand, the resistance of copper wire is small, with the same cross-sectional area of copper wire through the flow is larger than aluminum wire; On the other hand, aluminum wire has better transmi

What is a BNC connector used for?

2019-06-24

As you probably know, BNC connector is actually one of the common RF connectors, which is a small bayonet-type connector that are able to realize fast connection.

How can PCB trace have 50 ohm impedance regardless of length/ signal frequency?

2019-06-24

You know, PCB trace need to control impedance as 50 ohm, which is mainly determined by the signal parameters such as line width, line spacing, copper thickness, reference plane and dielectric thickness on the current PCB.

How do you calculate the lifetime of a printed circuit board?

2019-06-22

At present, there are all kinds of circuit boards, which make the circuit mini and intuitive. Apparently, it plays an important role in the mass production of fixed circuits and the optimization of the layout of electrical appliances.

Why are all Apple products' circuit boards colored black?

2019-06-22

1. Heat dissipation; 2. Design style; 3. Manufacturer's confidence;4. High-end series simbol

What is a RTD (resistance temperature detector)?

2019-06-21

RTD is actually the abbreviation of Resistance Temperature Detector, which means a special wire whose resistance virtually varies with the temperature; In adition, when it comes to the RTD material, it generally includes copper, platinum, nickel and alloy

What is a starting current and a running current?

2019-06-21

Starting current: The impact current of electrical equipment at the beginning of starting, which is the current variation of the motor or load during a short time from the moment when the motor is energized to the operation is stable. Generally, this curr

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