Xu Zewei, editor of International Electronic Transformer Abstract: Starting from the high-frequency power transformer as a product (i.e. commodity), this paper explains its design principles and re...
The RISC-V single-board computer used in this trial provides us with 40 pin interfaces, including the SPI interface. WhatI want to share today is how to use SPI to drive the ws2812B colorful lamp bead...
1. Battery voltage detection .
2. Voltage displayed on LCD1602
3. When the voltage is lower than 2.6V, the indicator light flashes.
4. When the voltage is higher than 3.3V, the indicator light flashes...
"Electromechanical System Testing and Control from Entry to Mastery" is aimed at the professional knowledge background of undergraduate graduates majoring in electromechanical engineering. First, in t...
The picture shows an LCD power supply circuit. Boosting 5V to 9.6V is a normal boost circuit. I would like to ask about the generation principle of +18V and -7.5V....
An example of troubleshooting a trigger failure on a Tektronix TDS7254 oscilloscope1. Instrument model:Tektronix oscilloscope TDS72542. Fault phenomenon:The customer reported that after the oscillosco...
There are many types of oscilloscopes, which can be roughly divided into desktop oscilloscopes and PC oscilloscopes, digital oscilloscopes and analog oscilloscopes. The quality, function, perfo...[Details]
Anti-interference Design in Digital Image Processing System Based on DSP
With the progress of human civilization and the rapid development of electronic technology, video communication, as an ...[Details]
introduction
LED display screen has the advantages of low cost, long life, low power consumption, wide operating temperature range, etc., and is widely used in the display of text and image inf...[Details]
Recently, Han Ping's family was in a happy mood at Dongchuan Village, Qinchuan Town, Lanzhou New District. Their "rooftop money printer" 5KW solar photovoltaic system was officially connected to th...[Details]
One of the fastest growing areas of LED application is effect lighting, also known as architectural lighting. Effect lighting can use RGB LEDs, which use three chips, each responsible for generating o...[Details]
Brief introduction:
SN8P2743 has first-class IC structure, with RISC-like system, high performance and low power consumption. Including:
▲ 4K-word program memory (OTP ROM),
▲ 128-byte data memory (...[Details]
LED is the abbreviation of Light Emitting Diode, which is a semiconductor that can convert electrical energy into visible light, with a luminous efficiency of 80% to 90%. Since its development, thi...[Details]
0 Introduction
In the fields of petroleum, chemical industry, metallurgy, electricity, textile, light industry, water conservancy and other industries and scientific research, relevant pressure...[Details]
For those players who love collecting, many of Apple’s old new products are very expensive, especially the first generation that are brand new and unopened. Now, some foreign users have shown...[Details]
In Capture mode, the CCPRxH:CCPRxL register pair captures the 16-bit value of the TMR1 register or the TMR3 register when an event occurs on the corresponding CCPx pin. An event is defined as one of t...[Details]
Recently, Google has finally added support for multiple windows for Chrome apps on iPad. This feature is currently available for users to test through TestFlight and should be available to all users ...[Details]
1 Introduction
Energy conservation and consumption reduction is the basic national policy of the country, and energy conservation in power plants is an important part of energy conserv...[Details]
1. Why should we discuss the electromagnetic interference suppression performance of operational amplifiers? The performance of the integrated operational amplifier for differential amplification of ...[Details]
1 Passive filter
Passive filter is a filter inductor connected in series between the rectifier and the capacitor, or a resonant filter connected on the mains input side. Its main advantages ar...[Details]
SD42522 Introduction: SD42522 is a step-down, PWM-controlled LED driver chip with built-in power switch. In the input voltage range of 6~36V, the output current can reach 1A. It has built-in tempera...[Details]