Cecelia Qiu

Joined: 1 month ago
Cecelia Qiu

How to choose a thermal relay?

Thermal relay is a traditional electrical appliance for protecting motors. It is used for overload protection of motors or other electrical equipment and electrical circuits. It ha...

Cecelia Qiu in Electronics 18 December 2021 · 19 · 2

The classification of the demo board

The demo board is a circuit board used for embedded system development. Simply put, it is a circuit board that integrates a variety of electronic components. These electronic compo...

Cecelia Qiu in Electronics 22 December 2021 · 10

Some guidelines about relays

A relay is an electrical control device. It is an electrical appliance that causes the controlled quantity to undergo a predetermined step change in the electrical output circuit w...

Cecelia Qiu in Electronics 01 December 2021 · 9

Why sensors are so important for autonomous driving?

We still have a long way to go to achieve a road full of autonomous vehicles. Although the current sensor capabilities are very helpful, they are relatively rudimentary when it com...

Cecelia Qiu in Electronics 03 December 2021 · 16

An Introduction to a Resistor

Overview A resistor is a current-limiting element. After the resistor is connected to the circuit, the resistance of the resistor is generally fixed with two pins, which can limit...

Cecelia Qiu in Electronics 06 December 2021 · 10

Precautions for relay application

1 coil voltage The voltage used by the coil should be selected according to the rated voltage in the design. If not, it can be selected with reference to the temperature rise curv...

Cecelia Qiu in Accessories 17 January · 2

Five common sensors for LED smart lighting

As one of the equipment of signal acquisition and electromechanical conversion, the electromechanical technology of sensing technology has been quite mature. In recent years, it ha...

Cecelia Qiu in Electronics 29 December 2021 · 13

Judgment of transistor working state

Transistors are the basic devices in analog circuits and are the basic building blocks for standard operation of computers, mobile phones, and all other modern electronic circuits....

Cecelia Qiu in Electronics 08 December 2021 · 10

What is a resistor? What should be paid attention to when selecting resistors?

Regarding resistors, especially thin-film chip resistors are very commonly used in various fields. For beginners, the selection of resistors is nothing more than choosing the size...

Cecelia Qiu in Electronics 31 December 2021 · 4

Which is better, active crystal oscillator or passive crystal oscillator?

In the crystal industry, we call crystals passive crystals, crystal oscillators we call active crystal oscillators, passive crystals we usually call quartz crystal resonators, acti...

Cecelia Qiu in Electronics 13 December 2021 · 46

An Introdcution to the Voltage-Controlled Oscillator

Refers to an oscillator circuit (VCO) whose output frequency and input control voltage have a corresponding relationship. The frequency is an oscillator VCO whose frequency is a fu...

Cecelia Qiu in Electronics 04 January · 8

An overview of electromagnetic relay

Selection of Electromagnetic Relays Understand the necessary conditions ① The power supply voltage of the control circuit, the maximum current that can be provided; ②The voltage...

Cecelia Qiu in Electronics 21 January · 4