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What is impedance matching?

2019-04-15

Impedance matching is a part of microwave electronics which is mainly used to the transmission lines in order to eusure all the high frequency microwave signals that can be transimitted to the load point without signal reflex back to the source point. As

How do you read printed circuit board schematics?

2019-04-13

First of all, we should have a basic understanding about the schematics architecture, including all kinds of components symbols and drawing rules of schematics.

How can I choose the aluminum plate for the PCB printed circuit board?

2019-04-13

Aluminum plate is a metal base copper clad laminate with the following characteristics such as terrific thermal conductivity, machining property and gas-electric insulation performance.

Can an LED be connected to Mains power with only a resistor in line?

2019-04-12

Actually, it depends entirely on what you’re intending to do. There are two various LED usages that we should consider: 1.As a power indicator—Yes! The current only need 1–2mA without diode; 2.To give out light—No! The current need at least 20 mA. Meanw

Were old CPUs soldered to the motherboard?

2019-04-12

As far as I am concerned, whether old CPUs were soldered to the motherboardor not where the slot of CPU is a major consideration. After all, all CPUs have their own characteristics. Exactly speaking, so long as the CPUs have slots, then it can be conclude

What is the etymology of the word “breadboard”, a method of prototyping?

2019-04-12

Breadboard is also called universal circuit board or integrated circuit test board which is known as its plenty of small hubs of board the similar as the small holes of bread.

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;

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;

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

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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