Author: Zhu Mingwu (Mingmo)The fuel gauge has three security modes: SEALED (locked), UNSEALED (unlocked), and FULL ACCESS (full access). Different security passwords are required to switch between dif...
I am using the msp430 2234 chip, using the timer to simulate the pwm output of the p3.3, and the p4 port is used for the led output. When I don't add the pwm output, the led display is very stable. Wh...
Why is the operating current of this circuit twice as large when the voltage is 12V than when it is 28V? The voltage range is 4.5V to 40V wide input. Does it mean that the higher the voltage, the more...
In the TTP299 chip, in the 16-key input mode, only the serial output mode can be used, using the 2-wire serial communication mode. How to write this method? Please give me some advice. It's urgent. Th...
Today, when I was adjusting SPI communication, I encountered a situation where the value in the send register was not what I wanted and an unexpected receive interrupt occurred. = (BIT2+BIT3+BIT1); IE...
Has anyone designed an integrated ultrasonic transceiver circuit? I recently want to make an ultrasonic distance measurement circuit. Now I have built a circuit by myself after finding information onl...
China's new energy vehicles are in a transition period from research and development to real industrial development. In 2012, with the intensive launch of new energy vehicle policy planning, the de...[Details]
1 Introduction
With the acceleration of the pace of urban modernization, society has higher requirements for urban road lighting and urban lighting projects. The state has clearly required tha...[Details]
To differentiate their products in a crowded and competitive market, manufacturers of handheld devices often consider battery life and power management as key selling points for cell phones, PDAs, ...[Details]
July 11, 2012, Beijing - Altera Corporation (NASDAQ: ALTR) today announced the launch of 40-Gbps Ethernet (40GbE) and 100-Gbps Ethernet (100GbE) intellectual property (IP) core products. These core...[Details]
1. With the development of modern industry and the continuous improvement of automation, some medium and large control systems have been greatly facilitated, which not only makes control easier, bu...[Details]
1 Introduction
PROFIBUS is an international, open, and manufacturer-independent fieldbus standard. It is widely used in manufacturing automation, process industry automation, and automatio...[Details]
This week, Microsoft held its 2012 Microsoft Worldwide Partner Conference (WPC) in Toronto, Canada. At the conference, Microsoft showed its new products and services to partners around the world. A...[Details]
General LED lighting has a current limiting resistor in the driving circuit, and the power consumed by the resistor has nothing to do with the LED light emission. In order to improve efficiency, a...[Details]
The potentiometer is an adjustable electronic component. The main functions of the potentiometer in the circuit are as follows:
1. Used as a voltage divider
A potentiometer is a continuou...[Details]
With the advocacy and implementation of the government's Safe City Plan, the security market has increasingly higher requirements for the clarity of surveillance images. Imagine that after a case o...[Details]
In the single-chip microcomputer system, in addition to display devices, sound devices are often used, and the most common sound device is the buzzer. Buzzers are generally used for some low-demand...[Details]
LED lighting: Basic circuit design can be completed in as little as one day
Semiconductor manufacturers are also getting involved in the LED lighting business. The power circuit of LED req...[Details]
Since AC mains power may experience power outages, voltage sags and surges, continuous undervoltage and overvoltage, and frequency fluctuations during supply, these factors will affect the continuous ...[Details]
Introduction
As the country increases its efforts to control the atmospheric environment, motorcycle emission regulations will become stricter year by year, and motorcycles that do not meet the...[Details]
0 Introduction
Under normal circumstances, the three-phase power in the power system is symmetrical, and they meet certain amplitude and phase conditions; but when the load changes, the syst...[Details]