A switching power supply is a voltage conversion circuit. Its main work is to step up and down the voltage. It is widely used in modern electronic products. Because the switching transistor always wor...
I have a question. I am using 51 to play with 315 wireless. When I measure the output of PT2272 alone, there is no delay (as can be seen with an oscilloscope). However, when it is detected by the micr...
[i=s]This post was last edited by ddllxxrr on 2017-9-18 20:58[/i] I am very happy to receive WIO LINK today, which says: "3 steps and 5 minutes to build your own IOT application". First of all, there ...
My driver uses RegisterWindowMessage to register a message, and the purpose is to send it to the application with PostMessage. I used we-hjb's debugging assistant to debug, and everything was normal. ...
Hello everyone: I have been learning how to write USB drivers recently, so I have read a lot of knowledge about USB. As everyone knows: USB transmission can use URB, and when using urb, you can choose...
0 Introduction
Metal halide lamp (MHL) as a green lighting source has been widely used in the field of indoor and outdoor lighting. However, when using this green lighting source, the matc...[Details]
In view of the problems in the actual FPGA development process, such as difficulty in locating faults, long compilation time after repeated code modification, and inability to confirm fault solutio...[Details]
summary
Theoretically explains how to set up a PFC boost regulator using a current sensing transformer with the UCC3817 control IC.
1. Schematic
The schematic diagram is show...[Details]
A well-designed electronic load is not designed just for use in the lab; it should be carefully designed and built to test actual power systems. This is true for military portable systems, such as ...[Details]
1. Introduction
The UCC28051 reference design is a 100W offline AC/DC voltage converter with power factor correction (PFC). This power module design is intended to illustrate how to proper...[Details]
Some application designs have higher requirements on the speed at which the system's switching power supply can provide voltage output. Figure
1
shows
the
bootstrap
...[Details]
Lifting wavelet transform not only has the advantages of traditional wavelet multi-resolution, but also simplifies the operation and is easy to implement in hardware. Therefore, it is widely used in d...[Details]
With the improvement of social automation, human-computer interaction capabilities urgently need a major change, and develop in a direction that is more convenient to use and more intuitive. Laser ...[Details]
Touch sensors have been in widespread use for many years, but recent advances in mixed-signal programmable devices have made capacitive touch sensors a practical, value-added alternative to mechani...[Details]
Abstract:
Aiming at the problems of repeated design and high cost of existing LED large-screen displays, a modular LED large-screen display is proposed, which can realize flexible configurati...[Details]
1 Introduction
In recent years, with the rapid growth of mobile phones and MP4 video players, it is estimated that the production of mobile phones this year will reach 1 billion units, and...[Details]
With the continuous development of the national economy, the application of variable frequency speed regulation devices is becoming more and more extensive. How to break the monopoly of foreign produc...[Details]
When it comes to ATX power supply, people will think of two "classic" ICs: pulse width modulation chip TL494 and voltage comparator LM339. The new dedicated control chip AT2005B has the functions ...[Details]
As AC induction motors become the preferred choice for industrial motors, the need to reduce power consumption in all aspects of the design continues to emerge, so improving the efficiency of these...[Details]
Abstract: This article introduces several floorplanning techniques for sub-65nm chip partitioning. These techniques help us complete a practical floorplan in a relatively short time, including: ana...[Details]
Microcontroller MCU
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