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Tom's Circuits
Tom’s Circuits – Reducing Random Noise in Analog Circuits

Tom’s Circuits – Reducing Random Noise in Analog Circuits

Noise is always a problem with sensors and other sensitive circuits. Some noise comes from digital circuits, power supplies, or RF interference. Thermal agitation is…

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Tom’s Circuits – PCB Thermal Design Tips: Fans for Cooling Electronics

Tom’s Circuits – PCB Thermal Design Tips: Fans for Cooling Electronics

Many electronic products rely on cooling fans, with sizes varying from 10" blowers to 8 mm micro-fans. A few thermal design equations can narrow down the…

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Blog / Tom's Circuits
Tom’s Circuits – Automated Optical Inspection for PCB Quality Control

Tom’s Circuits – Automated Optical Inspection for PCB Quality Control

Automated optical inspection (AOI) finds defects in both bare PC boards and assemblies. With small components, these defects are often invisible to the naked eye.…

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Blog / Tom's Circuits
Tom’s Circuits – Selective Soldering for High-quality Through-hole PCB Assembly

Tom’s Circuits – Selective Soldering for High-quality Through-hole PCB Assembly

PC board design trades off the toughness of through hole with the performance, size, and reduced cost of surface mount. Designers often choose through-hole for…

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Blog / Tom's Circuits
Tom’s Circuits – Design to Avoid EMI Problems: Keep Clocks Away from Unintended Antennas

Tom’s Circuits – Design to Avoid EMI Problems: Keep Clocks Away from Unintended Antennas

Unwanted PCB antennas can cause FCC EMI testing failures. Careful circuit design and board layout will minimize these problems. While many EMI problems can be…

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