Sinox, Macau, China many platform CAD graphics, PCB board, IC I know, HDL hardware description Language narrative, circuit simulation and design software, elemental analysis table, can open the eyes of the world.Recent research Sinox the implementation of Windows edition Protel,powerpcb,autucad, which is considered very cumbersome. On the other thought, Sinox the following in fact there are a lot of auxilia
1. "Protel" is mainly painted PCB, representative of PROTEL99, later developed to Altium Designer, more features.2. "OrCAD" is the main schematic diagram of the circuit and for the production of PCB and programmable logic design to provide continuous simulation information.3. "PSPICE" main analysis circuit. First, based on the analysis of the basic circuit charac
Fritzing is a set of software designed for PrintedCircuitBoard printed circuit boards. It is a tool especially intended for designers, artists, researchers, and amateurs. Like Processing and Arduino, Fritzing developers design this software in the spirit of openness, simplicity, and sharing. Fritzing is a simple and easy-to-use
Install the Open Source PCB printed circuit board design software Fritzing in Ubuntu
Fritzing is a set of software for designing Printed Circuit boards (Printed Circuit Board), especially for designers, artists, researchers and amateur players. Like Processing and Arduino,
Recently, some online friends have asked me questions about the choice of EDA software. Let's write them here. It takes a long time to play this role. The words of the family are for reference only.
When talking about the software for Drawing Circuit Diagrams and PCB diagrams, you may first think of PROTEL, which is the most used in Chinese universities, especia
The reset circuit of the stm32f411 chip in the Wang Gong's small board is as follows:In fact, this circuit is wrong, after the actual measurement, stm32f411 chip runtime reset pin is high, and in this circuit diagram, in fact, the stm32f411 chip runtime reset pin level to see the low level, according to this circuit, p
parts: pins, principles, and annotations. Let's take the symbol of the luminous second-level tube as an example to illustrate the structure of the schematic symbol, as shown in figure 1.
The electrical connections between schematic symbols can be connected through nodes, connections, bus, pages, ports, and other methods. There are some differences between different design software, but the general idea and meaning are basically the same.
A goo
The TTL circuit is the abbreviation for transistor-transistor logic circuit (transister-transister-logic), which is a digital integrated electricalA wide range of roads. It is manufactured with a bipolar process and features high speed, low power consumption and variety.CMOS is: A metal-oxide-semiconductor (metal-oxide-semiconductor) structure of transistors referred to as MOS transistors,There are P-type M
A circuit diagram usually has dozens of or even hundreds of, their lines cross, the form is changeable, beginners often do not know where to start, how to read it. In fact, the electronic circuit itself has a strong regularity, no matter how complex the circuit, after analysis can be found, it is composed of a few unit circui
, the purpose of selecting a higher crystal oscillator is to minimize the effect of at89c2051 on the pulse signal period of the host computer under mode 2. The RL1~RL4 in Figure 3 is the internal resistance of the windings, and the 50ω resistor is an external resistor that acts as a limiting current and is also a component that improves the loop time constant. The D1~D4 is a freewheeling diode that attenuates the back EMF generated by the motor windings through the freewheeling diode (D1~D4), th
ObjectiveThe last two days using AD14 software designed a Bluetooth anti-loss circuit board (PCB) drawings, the middle of some details in this document, to facilitate the next design of the PCB reference. Also hope to give the layman's classmates or just into the students a macro view of the General circuit board design process of the article.First, install AD14,
Landlord said: This is mainly about an infrared remote control circuit principle and design, part four is the focus, with the circuit diagram to illustrate the specific process-receive, count, meet the conditions trigger control circuit!From elecfans:http://www.elecfans.com/article/88/131/198/2015/20151215394306.htmlFirst, overview: Infrared remote control of th
The digital circuit is the switching circuit; the device operating state: is not on or off, the general signal level just high and low. The height is "1", the low level is "0", the operating state is the pulse power.
The analog circuit is the amplification circuit, the slightest change should be calculated, consider
Although literally, the secondary short circuit is the same as the 2nd short circuit. However, this is not what I encountered in my questions.
In some cases, you need to determine whether a short circuit exists. For example, there is only one path between u and v. Only the shortest path is short. The secondary short circuit
, the dielectric inside the battery can withstand a large amount of charging current, so the external can charge the lithium battery by a large amount of current, in order to shorten the charging time. The charging current in this phase is generally determined by a pin external to the charging management IC and a resistor. The resistance value is calculated based on the formula on the datasheet of the Charging management IC. 3. Constant Pressure Charging phase (already filled with more than 85%
1. The type of filter circuit and the advantages and disadvantages of each type.2. Filter circuit design (take Butterworth type low pass for example).3. According to the principle of low-pass filter circuit to promote the design of high-pass, band-pass, band resistance.=================================================================================1. The type of
Basic
Short-circuit operators are commonly used "" and "|", which are generally called "Conditional operations ".
Class logic {Public ststic void main (string [] ARGs ){Int A = 1;Int B = 1;If (A System. Out. println ("Oh, that's impossible !!! ");} Else {System. Out. println ("that's in my control .");}}}The operator checks whether the first expression returns "false". If it is "false", the result must be "false" and no other content is checked."A/
Euler circuitProblem description is a loop that does not leave the pen on the paper, but only once per side of the picture, and can return to the starting point. Now given a diagram, ask if there is a Euler circuit?The input test inputs contain several test cases. The 1th line of each test case gives two positive integers, namely the number of nodes N (1 Beam.Output takes one row for each test case, and outputs 1 if the Euler loop is present, otherwis
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