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Impedance Control Techniques for PCB Differential Routing

The text compares two PCB differential TDR test methods: the “True Differential Test Method,” which uses true differential signals to directly measure the characteristic impedance with virtual grounding, and the “Superposition” (Pseudo-differential) Method, which simulates differential impedance but requires separate grounding and cannot directly measure actual differential traces.

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What are the fundamental guidelines for PCB circuit routing?

This document outlines PCB design rules, including trace width and spacing requirements, grounding guidelines, crosstalk control, routing direction, impedance matching, trace length management, and resonance prevention to ensure signal integrity, minimize interference, and optimize performance.

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PCB Electromagnetic Compatibility (EMC) and Signal Integrity Wiring Design

Printed circuit boards (PCBs) are crucial for electronic devices, with multilayer boards supporting high-density, high-speed circuits, and their design must address electromagnetic compatibility (EMC) issues, signal integrity, and the proper placement of layers, traces, and decoupling capacitors to minimize interference and optimize performance.

PCB Electromagnetic Compatibility (EMC) and Signal Integrity Wiring Design Read More »

High-Precision Digital AC Energy Meter Circuit for Voltage, Current, Power, and KWh Measurement – Technology – Wellcircuits

By Hesam Moshiri info BaoDisclaimer Some parts of this circuit carry dangerous Mains voltage Be careful with your experiments If you are a beginner ask some experienced users to guide you Deali

High-Precision Digital AC Energy Meter Circuit for Voltage, Current, Power, and KWh Measurement – Technology – Wellcircuits Read More »

What is a Metal Core PCB? – PCB Fundamentals and Key Information – Wellcircuits

Metal core PCBs also known as MCPCBs incorporate a thermally conductive metal core such as aluminum copper or stainless steel instead of FR4 This metal core acts as a heat sink efficiently con

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Instructions for PCB Anti-Interference FPC Design and FPC Layer Stacking

The article discusses ways to improve the anti-interference performance of PCB-sensitive equipment, guidelines for FPC flexible circuit board assembly, and the growing opportunities in the PCB industry, particularly in response to the increasing demand for HDI boards, FPCs, and automotive PCBs driven by the 5G era and new energy vehicles.

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CNC Milling in PCB Circuit Board Manufacturing

The article explains the CNC milling process for PCB prototyping, focusing on the design and function of the milling table, pad, positioning pins, and the challenges related to wear, alignment, and efficiency, emphasizing the importance of precise fit and material selection for consistent machining and high-quality output.

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