Author: Xiajiashan (please respect the original, please indicate the source if reprinting) http://www.xiajiashan.com
4.1.2.1 Where does the desc-chip-unmask(irq) function come from?
In fact, default_s...
I have a question: When I was establishing a connection with the emulator and downloading the runtime image in Platform Builder, I encountered the following problem. The specified ce boot image could ...
[i=s]This post was last edited by Fourier's Cat on 2019-6-10 21:17[/i]I recently made a voice coil motor drive circuit. In order to ensure that the motor is not burned by abnormal signals, the voltage...
The DC 24V power supply voltage of my unit's equipment has been low recently. Generally, the voltage is between 17-18V when working, and sometimes it can be as low as 15V. The voltage of the 380V to 2...
Secondary capacity: P2=U2I2(VA), if there are several secondary coils, calculate their sum and primary capacity: P1=P2/η, η: efficiency, 0.7~0.9 Net cross-sectional area of core: Q0=K0√P1=1.25√P1 Gros...
[i=s]This post was last edited by zzwqw on 2018-3-28 16:01[/i] [size=14px] I encountered a question when learning to use ADC. I would like to ask an expert to answer it. The specific situation is as f...
At present, the development of wireless power supply technology for electric vehicles (EVs) is becoming more and more active. In 2012, Volvo of Sweden established Volvo Technology Japan in Tokyo as...[Details]
Traditional broadcasting systems generally need to be operated manually at a fixed time, and can only realize one-way broadcasting with few functions. Traditional bell ringing equipment has a singl...[Details]
1. Circuit composition
The whole circuit consists of two parts:
1. Power saving control circuit
As shown in the figure below. Including delay circuit and drive circuit.
(1) Delay ci...[Details]
Today, with the increasing integration of functions, mobile phones can also be used as portable media players (PMP), digital cameras, handheld computers (PDAs), and even global positioning systems ...[Details]
1. Introduction
With the growth of parking demand, the scale of parking lots is becoming larger and larger. A lot of research has been done on intelligent parking lots in China, but most of th...[Details]
Automotive applications are particularly sensitive to EMI events, which are unavoidable in a noisy electrical environment consisting of a central battery, bundled wiring harnesses, various inductiv...[Details]
introduction
Throughout the history of automotive lighting, power has always played an important role. Initially, cars only needed headlights to see the road in the dark. Later, other light so...[Details]
Converged processors meet scalability requirements
In current embedded system design, solutions based on MCU, DSP, FPGA and ASIC account for more than 90% of the market share. These solutions ...[Details]
The Mobile Industry Processor Interface (MIPI) Alliance is an organization responsible for promoting the standardization of software and hardware in mobile devices. It has released the D-PHY specif...[Details]
In order to highlight the concept of "energy saving and environmental protection" of intelligent buildings, solar street lights are designed for intelligent communities. The inclination and capacit...[Details]
This paper designs a dot matrix LED text display screen that is easy to update, expandable, and low-cost. The way to reduce costs is
① Use the Bluetooth data transmission function of mobile ph...[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]
Battery life is critical for portable applications. For applications such as smoke detectors, security devices, and thermostats, factory-installed batteries need to last for more than 10 years. The...[Details]
1 Introduction
Ultrasonic waves have strong directivity, slow energy consumption, and can propagate over long distances in a medium, so they are used for distance measurement. Ultrasonic detec...[Details]
Embedded System
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