PCB DESIGN GUIDE



PRINTED CIRCUIT BOARD LAYOUT GUIDELINES, SOFTWARE, TRACE CALCULATORS, AND TUTORIALS
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Let's begin with the basics for those who are new to PCBs. Printed circuit board (PCB) in general is any structure made of one or more layers of insulating material with electrical conductors. The insulator is typically made on the base of fiber reinforced resins, although it can also use ceramics, plastic, or some other dielectric materials. During manufacturing, the portions of conductors that are not needed are etched off, leaving desired tracks that connect electronic components.
Alternatively, the conductors can be added by an electroplating process.

PCB Currently, the main generic standard for PCB design, regardless of materials, is IPC-2221B. It provides rules for manufacturability and quality, such as requirements for material properties, criteria for surface plating, conductor thickness, component placement, dimensioning and tolerance rules, and more. This standard applies to all printed circuit board types including single-sided, double-sided and multilayer. For a specific technology, you may then choose an appropriate sectional standard from the IPC-2220 series. For SMPS power conversion designs, additional parameters are recommended by IPC-9592B.

PCB design includes the following main steps:
PCB DESIGN GUIDELINES,
RULES AND TIPS
FREE DESIGN SOFTWARE, TOOLS, DEMOs DOWNLOADS PRINTED CIRCUIT BOARD TRACE CALCULATORS

Basic guide and tips to design PCB for SMPS power supply

IPC-2221B electrical clearance table and recommendations

Books on power electronics and circuit board layout

EMI and layout fundamentals for SMPS switched-mode circuits

Printed circuit board designing and layout guidelines for switching power supplies and regulators

PCB design tutorial and references- process, footprints, guidelines


PADS schematics capture & PCB design software (evaluation)

Cadence® Allegro® PCB Designer program (functional limited size demo)

Free OrCAD Lite Download- fully functional limited size demo of OrCAD Capture with PSpice and PCB Editor

Free printed circuit board layout software download. Includes auto-router and trace optimizer

PRINTED BOARD PROTOTYPING, MANUFACTURING, ASSEMBLY

IPC-A-610E preview- acceptability of printed circuit board assembly

SchmartBOARD - prototyping blocks with footprints for most smt parts


Trace width calculator for external and internal layers per IPC-2152

A calculator of the spacing between the PC traces based on voltage levels

Creepage calculation per UL60950-1 2nd Edition

PC trace fusing current







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