[i=s]This post was last edited by dql2016 on 2022-1-23 19:08[/i]Currently, many products with Bluetooth functions can be connected to WeChat applet or mobile app, so it is very interesting to learn ho...
When making some low-power products or some products need to save power, we will put the MCU into low-power mode when it is not processing application tasks to extend the battery life; APM32E103VET6S ...
Electronically reconfigurable, or electrically tunable, microwave filters are attracting increasing attention for research and development due to their growing importance in improving the capacity of ...
Several issues on relay contact protection circuit, switching power supply RCD circuit, and MOS tube structure
1. The relay coil is connected in parallel with the RC series circuit to absorb the self-...
This morning, Redmi officially announced that the Redmi K30 Pro will feature an extreme full-screen design. The official poster also showed that the Redmi K30 Pro will be equipped with a lifting...[Details]
On May 24, Weng Jieming, member of the Party Committee and deputy director of the State-owned Assets Supervision and Administration Commission, pointed out that it is necessary to promote the develop...[Details]
Harmonics in power supply systems
1. Definition of harmonics
The definition of harmonics in power supply system is to decompose periodic non-sinusoidal electric quan...[Details]
Introduction to STC MCU The STC microcontroller is an enhanced 51 microcontroller, fully compatible with MCS-51, and has added new functions, such as two levels of interrupt priority, one more ex...[Details]
Heat treatment is one of the important foundations for improving and ensuring the quality and reliability of mechanical products and improving the market competitiveness of the manufacturing industry....[Details]
Advantages
Identify thermal management solutions to extend component life and system performance
Perform benchmark tests and complex drive cycles with reduced physical testing
Integr...[Details]
Connector products are everywhere in our lives, such as common sockets in homes, laptop charging plugs, or USB cables for smartphones. In addition, connectors are also essential devices in many indus...[Details]
Basic concepts of arrays:
1. Have the same data type
2. Having the same name
3. Storage in memory is continuous
Note: Distinguish the concepts of array subscript and number of a...[Details]
Require: 1. Set three scales: bass, middle and treble control buttons; 2. Design the sounds 1, 2, 3, 4, 5, 6, and 7 (Do-Re-Mi method to search for laxity); 3. Be able to play a simple nursery r...[Details]
LC filter is also called passive filter, which is a traditional harmonic compensation device. The reason why LC filter is called passive filter is that it does not need additional power supply. LC ...[Details]
Background of the Science and Technology Innovation Board November 5, 2018 At the opening ceremony of the first China International Import Expo, President Xi Jinping announced that a Science a...[Details]
The upcoming Galaxy A13 will be Samsung's cheapest 5G phone. The phone is the successor to the Galaxy A12 and should be more affordable than the currently available Galaxy A22. It is expected to be l...[Details]
A high-frequency inverter is a DC/AC converter that converts the DC power of a battery pack into an AC power supply with stable output voltage and frequency. High-frequency inverters have many ap...[Details]
I. Overview Switching systems are a critical part of any test system. They allow customers to connect test equipment and the device under test in different ways, thereby ensuring that different parts...[Details]
Despite its huge success, Apple has never been able to successfully enter the gaming market, either in the console or computer gaming sectors.
Back in the 1990s, before Steve Jobs return...[Details]
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