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, active crystal oscillato...
13 December 2021
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Cecelia Qiu
What is A/D conversion and D/A conversion?
1. What is a/d, d/a conversion:
With the rapid development and popularization of digital technology, especially information technology, in the fields of modern control, communication, and detection,...
25 February 2022
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Cecelia Qiu
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 components include CPU, m...
22 December 2021
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Cecelia Qiu
How to choose a fixed resistor？
There are many types of fixed resistors, and the choice of which material and structure of the resistor should be based on the specific requirements of the application circuit. Ordinary wirewound resi...
07 January 2022
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Cecelia Qiu
What is a fiber optic adapter？
What is a fiber optic adapter?
Fiber optic adapters (also known as flanges), also known as fiber optic connectors, are the centering and connecting components of fiber optic active connectors. Optica...
25 January 2022
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Cecelia Qiu
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 the current through...
06 December 2021
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Cecelia Qiu
Class D audio amplifiers have advantages
Designers often choose Class-D audio amplifiers to drive speakers in a variety of medium-power applications such as televisions (TVs), Bluetooth® speakers, and notebook computers. After all, class...
22 February 2022
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Cecelia Qiu
Some differences between capacitive and thermal MEMS sensors
Design engineers often need to choose among different kinds of accelerometers when developing heavy equipment. For example, in heavy machinery such as cranes, tractors, woodcutters, and construction p...
2 years ago
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Cecelia Qiu
An introduction to temperature sensor
Temperature is a basic physical quantity, and all processes in nature are closely related to temperature. The temperature sensor is the earliest developed and most widely used type of sensor. Accordin...
28 February 2022
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Cecelia Qiu
How to choose a signal generator and adjust the sensitivity of the signal generator?
1. Application of signal generator in sensitivity
The sensitivity of the radio and the walkie-talkie can be adjusted by the signal generator. The basic principle of adjustment is to minimize the atte...
11 February 2022
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Cecelia Qiu
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 and current in the...
21 January 2022
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Cecelia Qiu
Precautions for using hydrogen thyratron
Hydrogen Thyratron is a hot cathode low pressure gas (hydrogen or deuterium) discharge device. It has the advantages of high working voltage, large pulse current, rapid and stable ignition, low trigge...
10 January 2022
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Cecelia Qiu
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 function of the input...
04 January 2022
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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 has the same inverse t...
18 December 2021
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Cecelia Qiu
How to choose a sensor?
Sensors are the primary link to realize automatic detection and automatic control. Its existence and development give objects the sense of touch, taste and smell, and make objects slowly become alive....
15 December 2021
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Cecelia Qiu
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 of the resistance an...
31 December 2021
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Cecelia Qiu
