circuit software

How the motherboard boot circuit works After the motherboard key triggers the motherboard boot circuit, the boot circuit will trigger signal processing, and finally send a low-level signal to the power supply 14th feet, the power supply 14th feet of the High-level low, trigger the power supply, so that each pin of the power supply outputs the corresponding volta

Dejitters circuit (1) Eliminate jitter Circuit In the figure, the button signal is first sent to the key foot, where CP is the clock pulse signal of the circuit (the sampling signal should be regarded as about 8 ms ). After the key signal goes through two levels of D Trigger delay, it is then processed using the RS trigger. Here, the RS trigger frontend connecti

In MicroServices, we split the system into a number of service units that are interdependent between units through service registration and subscription consumption. But what if there are some services that have problems?For example, there are three services (ABC), and a calls B,b C. The request for B calls C is suspended and waits because of a network delay or a problem with the C itself code that causes B to be slow to respond.In the case of high concurrent access, these suspended threads are

Troubleshooting for motherboard short-circuit: What is the reason for the motherboard short circuit, how to solve? We often take down the motherboard to clean, and so on when you forget the switch and reset button that row of pins is inserted, with the copper key in the row of pins swept a bit, saw sparks Flash, the motherboard has no movement. According to the description of the phenomenon of the analysi

Solving secondary short-circuit with Dijkstra algorithmWe have learned to use the Dijkstra algorithm to solve the shortest path, but what if we want to solve a single short-circuit of a node? In fact, we can still use the Dijkstra algorithm to solve it.First of all, to review the principle of the Dijkstra algorithm: first of all nodes to set the shortest distance to infinity, and then make d[0]=0. Next, eac

Http://www.cnblogs.com/wally/archive/2013/04/16/3024490.htmlhttp://blog.csdn.net/me4546/article/details/6584448Maintenance of shortest short-circuit length d[i][0] and secondary short-circuit d[i][1], shortest-circuit number dp[i][0] and secondary short-circuit dp[i][1]#include #includestring>#include#include#include#i

0 IntroductionWith the widespread popularization and application of embedded system, UART (Universal asynchronous Receiver Transmiller) is widely used as a serial data transmission method. The UART allows full-duplex communication on a serial link. Serial Peripherals to Rs 232-c Asynchronous serial interface is typically implemented using a dedicated integrated circuit, the UART. Common serial interface chips such as 8250, 8251, NS16450, etc., can ach

Billion-ray infrared receiver is mainly used in set-top boxes, infrared remote control system, billion light agent Super-Yi Electronics to explain the working principle of the receiving head, from the circuit, PD chip and amplification circuit analysis of the principle of billion-ray infrared receiver head.First of all, let's look at the system framework of the billion-ray infrared receiver head:From PD (ph

In the dynamic circuit, there is no external excitation power supply, only the response generated by the initial energy storage of the dynamic element is called the 0 input response of the dynamic circuit.0 input response of RC circuitBefore the switch S is closed, the capacitor C is charged and its voltage is uc=uo. The switch action time is now taken as the starting point of the timer (t=0). When the swit

This article is original by purplesword (jzj1993). For more information, see. Original web site http://blog.csdn.net/jzj1993 We have seen pictures of integrated circuits in the previous article, and there are many shapes. What really works on these chips is the transistor integrated into the silicon wafer. What we can see is that it is encapsulated with an external shell. Wire the circuit pin on the silicon wafer to the external connector to facilit

I. Circuit DiagramLet's take a look at the figure. This figure is a circuit commonly used by lm4890 in MPN.2. Introduction to lm489201. General descriptionLm4890 is an audio power amplifier designed primarily for applications in mobile phones and other portable communication devices. In a 5 v dc power supply, it can output 1 W continuous average power to 8 Ω BTL (what is BTL ?) Load, and the total harmonic

HDFS short circuit local reads One basic principle of hadoop is that the overhead of mobile computing is smaller than that of mobile data. Therefore, hadoop usually tries its best to move computing to nodes with data. This makes the dfsclient client for reading data in hadoop and the datanode for providing data often exist on one node, resulting in many "Local reads ". At the initial design, the local reads and remote reads (dfsclient and datanode are

After several circuit board welding experiences and lessons, we will summarize the circuit board welding skills and steps: 1. Check whether the circuit board has obvious faults. For example, some cables in the circuit board are broken due to processing, or the line width is uneven, or there is an open

Transistor oscillator circuit Simple, low-cost, transistor oscillator circuit, brief analysis, learning oscillator circuit, in the past found that there are several other products that use this circuit to produce a certain frequency of pulse signal. Interesting. To learn.It can be seen that this

 How to prevent the amplification circuit self-excitation?Personal experience, the most effective way:1. Is the resistance of the amplifying circuit too large? For example, I've seen a circuit that amplifies 10 times times, and the resistor chooses 100k,1m. (Even the textbook is written). Intrinsic circuit current is

What about the computer board short circuit? What is the reason for the motherboard short circuit, how to solve? We often take down the motherboard to clean, and so on when you forget the switch and reset button that row of pins is inserted, with the copper key in the row of pins swept a bit, saw sparks Flash, the motherboard has no movement. Troubleshooting for motherboard short-

Today, the circuit diagram of SD card module, found that the operating voltage of SD card is 3.3V, so need to use voltage regulator chip to convert 5V power supply to 3.3V voltage, so a little bit about the voltage regulator chip data We choose the voltage regulator chip is asm1117-3.3, encapsulated as SOT-223 But in the drawing of the schematic diagram of the problem encountered, we found in the schematic diagram of two asm1117-3.3v chip schematic

contains three space-separated integers: a, B, and D that describe A ro Ad that connects intersections A and B and have length D (1≤ D ≤5000)OutputLine 1:the length of the second shortest path between Node 1 and node N Sample Input4 41 2 1002 4 2002 3 2503 4 100Sample Output450Hint3 (length 100+250+100=450), 4 (length 100+200=300) and 1, 2, routes:1, 2 Analysis:A sentence test instructions, a short-circuit template. in general, a short