Electrical Engineering
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Amr Bekhit

Embedded System Engineer, owner of HelmPCB, an embedded systems consultancy specialising in ATEX/IECEx design, Embedded Linux, LoRaWAN and low-power IoT.

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65 Why is kerosene stopping my red LEDs from illuminating? Aug 16 '16
7 How to fix EMC problems for existing designs? Jan 15 '15
6 How does the addition of a bias-t circuit affect the impedance of a transmission line? Jan 24 '13
5 Different behaviour when using single supercap vs several in series Dec 10 '12
5 Where to connect the VNA during matching network tuning Mar 25 '19
4 Use of different diodes in a bridge rectifier Aug 22 '20
4 Why does a metal sheet block all noise, but not when wrapped around a cable? Mar 5 '15
3 What's the correlation between spectral graphs produced using near field probes and ones produced using an antenna? Dec 3 '14
3 Coplanar waveguide for differential trace calculator Jul 7 '14
3 What would cause a buck-boost regulator to buzz loudly and generate high voltage ripple during certain input voltages? Sep 18 '15
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