[color=rgb(85, 85, 85)][b]Description[/b] PMP4447 is a power supply reference design with universal AC input and DC isolated output of [email]12V@0.5A[/email]. It uses the high-efficiency primary-side...
[i=s] This post was last edited by guxiangguo on 2016-3-28 15:35 [/i] Here is the code first: #include "hw_memmap.h" #include "hw_types.h" #include "sysctl.h" #include "gpio.h" #include "pwm.h" #defin...
I'm just crossing the river by feeling the stones, please give me some advice. @allankliu The display uses the common LCD5110, mainly because you can find the micropython driver on the Internet (5110 ...
I would like to ask, in PWM inverter, we use PWM wave to equal sine wave, control IGBT through PWM, and then filter to form sine wave. Common methods include calculation method and modulation method. ...
[align=left][color=#000000]In order to make the touch screen driver work completely according to my own ideas, from the Linux kernel to the driver, to adding various printing information, modifying an...
I would like to ask all the experts, who can make the clock signal, that is, the square wave signal, have no jitter, and the jitter cannot be higher than 400pspp? I would also like to ask all the expe...
1. Introduction
RFID (radio frequency identification) is a non-contact automatic identification technology that emerged in the 1990s. It uses the characteristics of radio frequency signal prop...[Details]
1. Overview
Will passive devices
produce nonlinear intermodulation distortion? The answer is yes! Although there is no systematic theoretical analysis, it has been found in engineerin...[Details]
This article discusses how to wake up a touch-sensitive device such as a tablet without touching the device, using basic gesture recognition and novel proximity sensors. The article discusses the p...[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]
Electronic systems are located at different points on the automotive power bus and therefore often need to operate under very stringent power requirements. These include load dump, cold crank, very lo...[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 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]
A multi-point temperature control heating control system was designed using the SST89E564RC single-chip microcomputer and a new temperature measuring device. The heating system can be controlled in...[Details]
my country is a big country in agriculture, grain production and consumption. Grains are a necessary condition for our nation to survive and develop. The flour processing industry will exist forever w...[Details]
1. Introduction
Testing the temperature of steel billets before rolling is an important measure to ensure the quality of steel. Traditional manual testing is difficult to ensure product qu...[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]
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]
12v Lead Acid batteries used in trucks, cars, RVs and uninterruptible power supplies are usually rated at 12V. This circuit monitors the battery, the charge and discharge curves, gives the cu...[Details]
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