When you receive the gift, you need to reply to the post saying "I know", will the administrator give you a notification, such as mobile phone or QQ? Thank you...
I have a question for you guys. I use a normal IO port to make a PWM signal. Since the frequency is relatively high and the pulse width needs to be adjustable (256 levels), I want to make the PWM outp...
1. Overview of Digital-to-Analog Conversion
The DAC12 module of MSP430 can convert the result of operation processing into analog quantity in order to operate the working process of the controlled obj...
Using Timer+PWM to drive WS2811 LED-Strip WS2811 LED innovatively integrates 5050LED and LED driver in the same package. It greatly simplifies the design of LED strip. ● Output port withstand voltage ...
Dear heroes: My PDA system is based on the PXA255+WCE4.2 platform. There is a 128M SDRAM connection on the hardware, but now the system can only use 64M SDRAM as memory. If the memory is changed to 12...
I am very happy to receive the desk calendar sent by eeworld. It is very beautifully made. It is very good. The cards seem to be arranged as shown below. It seems that there is one word missing! But i...
Assume that data is read from 8-bit AD (if it is a higher-bit AD, the data type can be defined as int), the subroutine is get_ad();
1. Limited secondary filtering
/* A value can be adjust...[Details]
In
circuit design,
current
measurement
is widely used, and the main fields are divided into three categories: in measurement,
the electric meter
is used to measure the curre...[Details]
Floating-point digital signal processing has become a constant requirement for precision technology, often in applications requiring high accuracy in areas such as aviation, industrial machinery, a...[Details]
1 Introduction
Solar street lights are mainly composed of four parts: solar photovoltaic cell components, batteries, charge and discharge controllers, and lighting fixtures. The bo...[Details]
Introduction
Power subsystems are becoming more and more integrated into the overall system. Power systems have moved from being separate "essential dangerous devices" to being monitorable...[Details]
Overview
In spectral measurement, photomultiplier tubes (PMT) and charge-coupled devices (CCD) are often used as photoelectric converters. PMT is used in slow-changing, high-precision spectral...[Details]
1. Disadvantages of choosing too high a voltage level
Choosing too high a voltage level will result in too high an investment and a long payback period. As the voltage level increases, the...[Details]
This article will introduce a design method for a distributed control system used in a tracking car, which can perform distributed control of motor modules, sensor modules, and lighting control mod...[Details]
Every time I go home and walk up the stairs, I am always scared. The corridor lights are often broken, and no one changes the bulbs, or they are not smart enough and need to be operated manually. E...[Details]
summary
This article will briefly analyze the success and shortcomings of high-frequency DC-DC switching power supplies in the process of miniaturization (the second basic goal), and propose m...[Details]
The capacity of a battery depends on the amount of charge and discharge, in addition to some factors of the battery itself. Obviously, if the charge and discharge of the battery can be recorded all...[Details]
The power consumption of a switching power supply includes fixed losses caused by parasitic resistances such as semiconductor switches, magnetic components, and wiring, as well as switching losses ...[Details]
Energy conservation and environmental protection are the main directions of current automotive technology research, and power batteries are the key to electric vehicle technology. Research on powe...[Details]
As a new type of centralized and decentralized elevator control system, serial communication has been widely used in China. Compared with the previous centralized and unified control system, each s...[Details]
Current sensing in automotive applications includes controlling the current through solenoids and injectors. For example, during diesel injection, we rapidly increase the current to the induction i...[Details]
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