Positive and negative power supply of operational amplifier, in-phase amplification and inverting amplification applications1. Do op amps powered by positive and negative power supplies have a larger ...
1. About product EMC pre-test50 % of projects fail the first EMC test . If you are developing a product, you have to invest money, time, and sometimes emotion to get the product to market. And in the ...
I designed a 3-8 priority encoder using vhdl language. When writing a testbench and using modelsim for sequential simulation, it started normally, but an indeterminate state X appeared in the middle (...
There are three common topologies for inductor- based switch architecture power supplies, namely BUCK step-down power supply , BOOST step-up power supply and BUCK-BOOST negative voltage power supply ....
Original: https://forum.micropython.org/viewtopic.php?t=10410p=57630#p57630
Today is MicroPython’s 8th birthday! The first line of code was written 8 years ago today, on April 29th.It’s also been exac...
Application and development of lithium-ion battery management chip 1. Characteristics and application of lithium-ion batteries As early as 1912, the research on lithium batteries (Li Battery) with ...[Details]
First, understand the timing of TFT LCD. Each VSYNC signal indicates the beginning of a frame of data, and each HSYNC indicates the beginning of a row of data, regardless of whether these data are val...[Details]
On July 29, 2021, Neusoft Reach launched a new generation of autonomous driving central computing platform, which uses Horizon Robotics' new generation Journey® 5 chip. As a strategic partner of Ho...[Details]
Fairchild's FAN6863 is a highly integrated flyback power green mode PWM controller designed for consumer electronics products with less than 40W and standby power consumption less than 100mW, such as ...[Details]
1. What is the definition of battery?
A storage battery is a type of battery. The function of a storage battery is to store limited electrical energy and use it in a suitable place. The wo...[Details]
ATPCS
ATPCS is the abbreviation of ARM-THUMB procedure call standard.
PCS specifies how application functions can be written separately, compiled separately, and finally connected togethe...[Details]
Complete program download address: http://www.51hei.com/f/avrplj.rar
Main function (main()): /*
Program function: frequency meter
Author: Zhu Bo
Date: January 28...[Details]
Introduction: This chapter will help readers write efficient C code on ARM processors. Some of the techniques involved in this chapter are not only applicable to ARM processors, but also to other RIS...[Details]
QuickLogic expects to cut 30% of its workforce to save $4 million in annual expenses, and the layoffs and restructuring will cost about $600,000. "We expect these changes to impact only a portion o...[Details]
Principle knowledge
Verification Test
Summarize
Many friends know that the math channel function can be used in the crankshaft signal waveform to obtain the engine speed inform...[Details]
At the end of the year and the beginning of the next year, 5G mobile phones were frequently launched. On November 26, 2019, the Honor V30 5G mobile phone was released, priced from 3,299 yuan; on Dece...[Details]
/****************************************************** **********
Routine name: SysTick experiment
Hardware connection: indicator light connected to PE0
Function description: PEO flips once per s...[Details]
Automotive Ethernet usually adopts the layered structure of the OSI (Open System Interconnection) model, which divides network communication into seven different layers, each responsible for differ...[Details]
There are two timers/counters in the 51 microcontroller, called T0 and T1, which are 16 bits, so they each consist of two 8-bit special function registers (SFRs), namely T0 = TH0 + TL0, T1 = TH1 + TL1...[Details]
Analysis of LCD working principle:
1. LCD hardware architecture:
LCD hardware system: You can see that the LCD controller is in the ARM processor, and the LCD screen and p...[Details]