circuit software

, including adding hardware circuitry and using software protocols. Although software protocols are more complex to implement, this is the preferred approach. But because most system designers, hardware designers prefer to use hardware to achieve the failure protection, increase the hardware circuit to achieve the failure protection is more often used.The fail-sa

Design of constant current source circuitRecently due to job needs and personal interests, want to learn the constant current source of circuit design, and make a reliable constant current source.Search from the Internet a bit of information, found that not too much, only a few links have reference value, here want to summarize.First select a few of the original rational circuit reference:Http://bbs.21ic.co

system and the mode of the person should be able to understand, do not do analysis here). In fact, such circuits often do not work because of the non-ideal characteristics of op amp and other devices. Even the most basic wires have resistors, and theoretical analysis makes it difficult to consider so many non-ideal factors. In fact, it is generally necessary to add a few more devices, such as. Even if the circuit is perfected, each device

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First, RS485 basic knowledgeRS-485 interface chip has been widely used in industrial control, instrumentation, instrumentation, multimedia networks, electromechanical integration products and many other fields. There are also more and more types of chips available for RS-485 interfaces. How to find the most suitable chip in a wide range of interface chips is a problem in front of every user. RS-485 interface in different use situations, the requirements of the chip and the use of different metho

Focus:Branch Current methodSuperposition theoremThévenin theorem.Electronic technology: Digital electricity, mold power.Equivalent transformation of 2.1 resistor series-Parallel connectionThe voltage of the current source is determined by the external circuit.The equivalent relationship between the ① voltage source model and the current source model is only the external circuit, which is not equivalent to the internal power supply.When the voltage sou

Circuit Design: This is a very big concept, from the voltage intensity can be divided into strong electric circuit design and Weak Current Circuit Design; from the design tool can be divided into manual drawing and electronic auxiliary design, the circuit types can be divided into analog

-time performance. Therefore, the topology structure and communication protocol of the physical bus are particularly critical. 2 Interface DesignGood interface design should ensure good anti-interference, stability and scalability of the system on the hardware. This system selects a half-duplex interface chip sn65hvd3082 with high cost performance. It has the following features:① Meet or exceed the requirements of TIA/EIA-485A standards;② Low static current consumption-the effective mode is less

filter, it is impossible to trace the oscillation frequency change of the VCO. If the time constant is too small, ripple will occur on the VR, which worsens the stability of the PLL (phase locked loop).Therefore, based on experience, the time constant of the loop filter is chosen about hundreds of times times the period of the reference frequency (1/FR). This option is approximately dozens of Ms. --------------------------------------------------------------------------------------------------

single chip microcomputer txd (p3.1) (refer to the 51 Single-Chip Microcomputer pin distribution diagram previously introduced). These two lines are used for serial communication and download programs, which will be detailed later. As shown in the figure, I have connected the circuit, connected a LED and resistor on p1.0, and downloaded the LED flashing program from the computer. You can see that the green led in the photo is being lit. After setting

and other devices, H-magnetic diode, Hall element in K-open magnetic circuit, L-high-frequency high-power transistor, Hall element in M-closed magnetic circuit, p-photosensitive device, Q-emitting device, R-small-power thyristor, S-small-power switch, T-high-power thyristor, U-high-power switch, X-multiplier, Y-rectifying diode, Z-regulated diode. Part 3: Add a digit or a letter to indicate the registratio

Synopsys Tetramax Overlay with Synthesis (TX) vK-2015.06 Linux64 1CD integrated circuit testing toolsSynopsys Tetramax StandAlone (txs) vK-2015.06 Linux64 1CD IC testSynopsys Company's integrated circuit testing tool, Tetramax is a high-speed, high-performance Automated test incentive generation tool (ATPG automatic test pattern generation）Form Verification Tool Synopsys.formality.vk-2015.06.linux64 1CDA fo

be further understood. For example, embedded software is also a vague concept. Circuit Theory. What is circuit theory? What is circuit? What is theory. The theory is the [evaluation, opinion, formulation, or comment on the nature, function, cause, or origin of one or more phenomena derived from speculation, deductio

The computer is composed of hardware and software which is indispensable.How to achieve within?First I'm going to tell you two conditions: a circuit that can perform a specific function, a programThen, can complete the specific function of the circuit: basically digital circuit and analog

This article is on some of the LC circuit information to summarize the results, please look at the dialectical, where there is the wrong place please criticize: First, LC series parallel circuit qualitative understanding: In LC circuits, the frequency values corresponding to the inductance and tolerance are called resonant frequencies, as shown in Figure 1 below. When receiving radio or television signals o

Agilent GoldenGate 2015.1 circuit Design Simulation Win/linuxKeysight Technology has released its Goldengate software to simulate, analyze and validate the latest version of the solution for large-scale rfic circuit design. Keysight eesof EDA GoldenGate 2015.1 provides the purposeNew enhancements for Silicon rfic designers that increase productivity and efficienc

The following mainly through the use of NPN transistor switching circuit design, PNP transistor switching circuit similar to NPN.First, the transistor switch circuit design feasibility and necessity Feasibility: The person who used the transistor is clear, transistor has a characteristic, is saturated and cut off state, precisely because of these two states, so t

Source: Power Supply NetworkKeywords: MOS Structure switch Drive Circuit When using MOS to design a switching power supply or motor drive circuit, most people will consider the mos on-resistance, maximum voltage, maximum current, and so on. Many people only consider these factors. Such a circuit may work, but it is not excellent. It is not allowed as a formal pro

connected to the DDR2 bank and its IO supply voltage should be 1.8V As mentioned above, the DDR2 IO level flavor 1.8V, so the FPGA corresponding to the bank's IO supply voltage page should be 1.8v,ac6102, DDR2 and FPGA BANK3 and BANK4 connection, so the FPGA chip corresponding IO The Bank power supply is set to 1.8V, as shown in: Through this section, we understand the FPGA connection DDR2 chip circuit principle and considerations, we can a

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