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Why is the secondary current is higher than primary in step down transformer?

2019-04-11

It is known that the transmission power of both sides in the ideal trnsformer are equivalent, that’s to say, the primary input power is equal to the secondary output power;

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What is the QFN package in a microcontroller in electronics?

2019-04-11

QFN refers to Quad Flat No-lead Package, which is a new SMT package technology with sealing material of plastic whose pads is a type of small size and volume;

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Why do we use multiple sensors in the industry?

2019-04-11

The sensors in the industry generally belong to the detective ones which are used for various demands like pressure measurement, liquid level measurement, flow measurement, displacement measurement, level measurement, temperature measurement, weighing mea

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What is a good and cheap way to interconnect 2 PCBs?

2019-04-10

There are three ways to interconnect 2 PCBs: 1.Welding a couple of wires (Wire to wire); 2.Welding some pin headers (Board to board); 3.Connecting via Pads (With the help of tin solder).

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Why are active fluxes not recommended for soldering electronic PCBs?

2019-04-10

When it comes to the prevalent issue why the active fluxs are not recommended for soldering electronic PCBs, the first thing we should consider that that is one of the characteristics of fluxes, corrosivity.

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Which one is better, laser or inkjet printers?

2019-04-10

Laser printer uses carbon dust instead of ink whose features are stable printing, simple maintenance and available bulk print; Inkjet printer is known as a ink printer whose mainly features are of high quality pictures; However, there are a couple of c

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How can you clean a corroded battery terminal?

2019-04-09

First of all, you should wash the corroded battery terminal with water and then burnish it seriously with a sand paper until that you can observe the copper or iron;

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What purpose do diodes that do not emit light serve in electric circuits?

2019-04-09

The purpose of the diodes that do not emit light: On-off, the same as switch; Voltage stabilization; Rectification.

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At what frequency do PCB traces start to act as antennas?

2019-04-09

In the High Frequency and RF(Radio Frequency) circuit, PCB traces basically start to act as antennas;

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What are the multilayers of PCB?

2019-04-08

The multilayers of PCB: The copper foil of PCB is more than two layers, including the surface layer and the inner layer.

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