When the mains is normal, relays J1 and J2 are both energized, and the battery is charged with a constant voltage. 7815 , D1 , D2 and R3 form a constant voltage charging circuit. When the mains is off...
1. Introduction In the study of human body composition, measuring the bioimpedance value of the human body can obtain information related to human health status such as water content and fat content, ...
USB network card driver. It can obtain IP address normally and can ping. I use TCP tool (WinCE) to communicate with PC. WinCE sends data OK, but when sending data from PC to WinCE, CE throws an except...
I would like to ask what does the following candece constraint rule line width mean? I just started learning and I saw that the video tutorials all had a number. I have never seen this before so I wan...
I've been stuck here, I don't know how to import it, I imported it before dinner, and it's been an hour now[[i] This post was last edited by cl17726 on 2013-8-7 14:15 [/i]]...
At present, more and more designers use MSP430 in China, but how can we design the most reasonable system with the highest performance-price ratio? Based on the author's many years of application expe...
introduction
1 The significance of using RTOS on MSP430
It is understandable that it is meaningless to use RTOS on MSP430. Because the hardware resources of MSP430 are limited (for exampl...[Details]
Analog engineers have traditionally struggled with complexity when designing power supplies that required multiple outputs, dynamic load sharing, hot-swap, or extensive fault-handling capabilities....[Details]
No matter which processor you are learning, the first thing you need to understand is the registers and working mode of the processor.
ARM has 37 registers, including 31 general registers and ...[Details]
All electronic design engineers and scientists have performed electrical signal analysis, or signal analysis for short. Through this basic measurement, they can gain insight into signal details and...[Details]
The reason for the light decay of white LEDs: the decline of phosphor performance
So far, the rapid decline of the luminous performance of white light LEDs, especially low-power white light LE...[Details]
Instrument stepper motor
The stepper motor is an open-loop control element that converts electrical pulse signals into angular displacement or linear displacement. In the case of non...[Details]
1. Introduction
At present, most lighting equipment still uses traditional energy for lighting. Making full use of solar energy as the energy supply for lighting equipment is of great si...[Details]
A standard cell
is an electrochemical
cell
used as a voltage reference standard in many electrical standards laboratories
. If properly maintained, standard cells are very stable. The ...[Details]
Overview:
This paper introduces a method of connecting a CAN-bus network with Ethernet to form a medium-sized remote monitoring/data transmission network.
CAN (Controller Area Network) is ...[Details]
Many battery-powered systems require a visual indicator to show when the battery needs to be replaced. LEDs are commonly used for this purpose, but they consume at least 10mA of current. This con...[Details]
a. Keep the battery clean, wipe off the spilled electrolyte, contaminated dirt and dust in time; keep the poles and terminal clamps clean and in good contact, and apply vaseline or butter to preven...[Details]
introduction
When it comes to the production of mobile phone lithium-ion batteries, the first thing that comes to mind is Japan's industrialized mechanical assembly line, NOKIO, MOTOLROLA's st...[Details]
Currently, high-frequency and high-efficiency DCDC converters are increasingly used in automotive electronic systems.
High switching frequency can use smaller power inductors and output filter...[Details]
1 Introduction
With the development of computer technology and information technology in the world, the global information age has arrived. All countries are formulating their own development p...[Details]
Designing low power circuits while achieving acceptable performance is a difficult task. Doing so in
the RF
bands increases the challenge dramatically. Today, nearly everything has wireless...[Details]