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The design of the high-frequency circuit PCB is a complicated process, and many factors involved may directly affect the performance of the high-frequency circuit. Therefore, designers need to continuously research and explore in the actual work, accumulate experience, and combine the new EDA (Electronic Design Automation) technology to design high-performance circuit PCB with excellent performance.

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Research on Manual Routing Design of High Frequency PCB

Routing is the overall requirement for high-frequency PCB design based on a reasonable layout. Wiring includes both automatic routing and manual routing. Generally, regardless of the number of critical signal lines, these signal lines are manually wired first. After the wiring is completed, these signal lines are carefully inspected, fixed after inspection, and then automatically routed to other wirings. That is, the combination of manual and automatic wiring is used to complete the wiring of the PCB.

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Research on Manual Layout Design of High Frequency PCB

Although Protel99SE has the function of automatic layout, it can not fully meet the working needs of high-frequency circuits. It is often necessary to rely on the designer's experience. According to the specific situation, the manual layout method is used to optimize the position of some components, and then combined with automatic layout. Complete the overall design of the PCB. The rationality of the layout directly affects the life, stability, EMC (electromagnetic compatibility) of the product, etc., must be from the overall layout of the circuit board, the feasibility of wiring and the manufacturability of the PCB, mechanical structure, heat dissipation, EMI (electromagnetic Comprehensive considerations such as interference), reliability, and signal integrity.

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Balanced PCB stack design method

Designers may design odd-numbered printed circuit boards (PCBs). If the wiring does not require an extra layer, why use it? Isn't reducing layers not making the board thinner? If the board is one less layer, is the cost lower? However, in some cases, adding a layer will reduce the cost.

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Tag: pcb PCB pcn stack pcb fabrication

Reliability Design of High Speed DSP System PCB Board

A number of issues that should be noted for PCB board reliability design in high speed DSP systems.

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Finding software defects during PCB design

This article will show you how to avoid those hidden but common mistakes, and introduce a few tips to help engineers discover hidden errors in PCB copy board software. Most software development projects rely on code inspection, structural testing, and functional testing to identify software defects. Although these traditional techniques are very important and can find most software problems, they cannot detect many common errors in today's complex systems.

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LED driver power PCB design tips and specifications

In any power supply design, the physical design of the PCB is the last link. The design method determines the electromagnetic interference and power supply stability. Let's analyze these links in detail:

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PCB design principles and anti-interference measures

Posted on January 15, 2019 by G

PCB is a support for circuit components and devices in electronic products. It provides electrical connections between circuit components and devices. With the rapid development of electricity technology, the density of PGB is getting higher and higher. PCB design has a great impact on the ability to interfere with interference. Therefore, when designing PCBs. The general principles of PCB design must be followed and should meet the requirements for anti-interference design.

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PCB circuit board heat treatment

The direct cause of the temperature rise of the printed board is due to the existence of circuit power consumption devices. The electronic devices have different degrees of power consumption, and the heat generation intensity varies with the power consumption.

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Analysis of temperature rise factors of printed circuit boards

Posted on January 15, 2019 by G

The heat generated during the operation of the electronic device causes the internal temperature of the device to rise rapidly. If the heat is not dissipated in time, the device will continue to heat up, and the device will fail due to overheating, and the reliability of the electronic device will decrease. Therefore, it is very important to dissipate the board.

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Tag: pcb printed boards

Printed circuit board ground wire design

At present, electronic equipment is used in various electronic devices and systems, and printed circuit boards are still the main assembly method. Practice has proved that even if the schematic design of the circuit is correct and the printed circuit board is not properly designed, it will adversely affect the reliability of the electronic device. For example, if the two thin parallel lines of the printed board are in close proximity, a delay in the signal waveform is formed, and reflected noise is formed at the end of the transmission line. Therefore, when designing a printed circuit board, care should be taken to use the correct method.

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Impedance factors in PCB processing

Under normal PCB design conditions, the following factors are mainly affected by PCB manufacturing:

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PowerPCB shortcuts

PowerPCB provides users with a quick set of commands. Shortcut commands are mainly used for operations that require frequent changes to the settings during the design process. For example, changing the line width, wiring layer, and changing the design Grid can be achieved by shortcut commands.

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Detailed manual layout and routing using flying leads in PCB design