Keith Armstrong

EMC & Compliance Information > Keith Armstrong Portfolio

Here you will find the articles complete in both html and pdf format making it easy for you to download. If you would like to find out more about Keith Armstrong just log on to www.cherryclough.com and if you would like to contact Keith email: keith.armstrong [at] cherryclough [dot] com

Design Techniques for EMC Part 6 - ESD, electromechanical devices, power factor correction, voltage fluctuations, supply dips and dropouts (1st part of 4)
Design Techniques for EMC Part 6 - ESD, electromechanical devices, power factor correction, voltage fluctuations, supply dips and dropouts (2nd part of 4) 
Design Techniques for EMC Part 6 - ESD, electromechanical devices, power factor correction, voltage fluctuations, supply dips and dropouts (3rd part of 4) 
Design Techniques for EMC Part 6 - ESD, electromechanical devices, power factor correction, voltage fluctuations, supply dips and dropouts Final part (4th part of 4)


Design Techniques for EMC - Part 5 PCB Design & Layout (1st)
Design Techniques for EMC - Part 5 (2nd)


Design Techniques for EMC Part 4 - Shielding (Screening)(part 1)
Design Techniques for EMC Part 4 - Shielding (part 2)
Design Techniques for EMC - Part 4 Shielding (part 3)


Design Techniques for EMC Part 3 - Filtering and Suppressing Transients
Design Techniques for EMC Part 3 - Filtering and Suppressing Transients (second part)
Design Techniques for EMC Part 3 - Filtering and Suppressing Transients (third part)


Design Techniques for EMC Part 2 - Cables and Connectors (first half of part 2)
Design Techniques for EMC Part 2 - Cables and Connectors (second half of part 2)


Design Techniques for EMC Part 0: Introduction & Part 1: Circuit Design and Choice of Components
Design Techniques for EMC Part 0 Introduction & Part 1 - Circuit Design and Choice of Components (SECOND PART)


Advanced PCB design and layout for EMC. Part 1 – Saving time and cost overall
Advanced PCB design and layout for EMC. Part 2 – Segregation and Interface Suppression
Advanced PCB design and layout for EMC. Part 3 – PCB-to-chassis bonding
Advanced PCB design and layout for EMC Part 4 - Reference planes for 0V and power
Advanced PCB design and layout for EMC - Part 5 Decoupling, including buried capacitance technology
Advanced PCB design and layout for EMC Part 5 - Decoupling, including buried capacitance technology (Second Part)
Advanced PCB design and layout for EMC Part 6 - Transmission lines - 1st Part
Advanced PCB Design and Layout for EMC Part 6 - Transmission Lines - 2nd Part
Advanced PCB Design and Layout for EMC Part 6 - Transmission Lines - 3rd Part
Advanced PCB Design and Layout for EMC Part 7 - Routing and layer stacking, including microvia technology
Advanced PCB Design and Layout for EMC Part 8 - A number of miscellaneous final issues

Past Articles

Click the text link for the HTML version of the article. Alternatively, click on the PDF icon to view or download the article in PDF format.

 

Bonding Cable Shields at Both Ends to Reduce Noise
(with Tony Waldron)

PDF file. Right click to save to hard drive.

Design Techniques for EMC (Now updated by a new series - see recent articles above)

Part 1: Circuit design, and choice of components

PDF file. Right click to save to hard drive.

Part 2: Cables and Connectors

PDF file. Right click to save to hard drive.

Part 3: Filters and Surge Protection Devices

PDF file. Right click to save to hard drive.

Part 4: Shielding

PDF file. Right click to save to hard drive.

Part 5: PCB Design and Layout

PDF file. Right click to save to hard drive.

Part 6: ESD, dips, flicker, dropouts, electromechanical switching, power factor correction

PDF file. Right click to save to hard drive.

 

 

 

EMC for Systems and Installations

Part 0: The commercial need for EMC in systems and installations
Part 1: Earth? What earth?

PDF file. Right click to save to hard drive.

Part 2: EMC techniques for installations

PDF file. Right click to save to hard drive.

Part 3: EMC techniques in assembly

PDF file. Right click to save to hard drive.

Part 4: Filtering and Shielding

PDF file. Right click to save to hard drive.

Part 5: Lightning and Surge Protection

PDF file. Right click to save to hard drive.

Part 6: CE + CE ¹ CE! What to do instead

PDF file. Right click to save to hard drive.

 

 

 

EMC Testing

Part 1: Radiated Emissions

PDF file. Right click to save to hard drive.

Part 2: Conducted Emissions

PDF file. Right click to save to hard drive.

Part 3: Fast Transient Burst, Surge, Electrostatic Discharge

PDF file. Right click to save to hard drive.

Part 4: Radiated Immunity

PDF file. Right click to save to hard drive.

Part 5: Conducted Immunity

PDF file. Right click to save to hard drive.

Part 6: Low-frequency magnetic fields (emissions and immunity); mains dips, dropouts, interruptions, sags, brownouts and swells

PDF file. Right click to save to hard drive.

Part 7: Emissions of mains harmonic currents, voltage fluctuations, flicker and inrush currents; and miscellaneous other tests

PDF file. Right click to save to hard drive.

 

 

 

EMC-Related Functional Safety – An Update

PDF file. Right click to save to hard drive.

 

 


This human hair extensions uk is gorgeous and so soft and thick i was very surprised!! 10 inch is a bit shorter than expected but the lace cuts easily and melts in the brazilian hair uk and the parting space and density is enough that I will definitely be able to style it in a cute cut. Very impressed with the 130 density since I like my lace wigs uk very thick and hair looks soft and sturdy enough that I can't wait to see how it takes color. Great deal overall! I'm in love with my new wig. There's no shedding with the brazilian hair bundles and it feels very natural. The seller was amazing and kept in contact with me while answering any questions I had. Will definitely order for them again. I bought this wig for school because maintaining my natural hair is hard considering I'm in University. The lace wigs uk is very soft and smells good. The parting was perfect and came already plucked as you can see. Also the seller communicated with me through the whole process. In addition I use hair products such as mousse and the hair still remained good. I would highly recommend this product.