Electronics Forum | Mon Jul 10 02:54:39 EDT 2017 | dawson
Is there any designer here and recommend the best trace impedance calculator you think? thanks a lot!
Electronics Forum | Thu Aug 31 09:10:46 EDT 2017 | hxamalia
Hi Dawson， We are using Polar SI9000 to calculate impedance . If you like ,please send your requirement to my email for calculate for free . It is Amalia from HX Circuit Technology Co.,Ltd in China, we are a prefessional PCB factory wit
Electronics Forum | Fri Nov 17 02:12:01 EST 2017 | yongrong
Dear Dawson, How is everything going? This is YourPCB Technology in Taiwan. We provide one total solution for PCB fabrication. Our strong front-end engineers and CAM engineers team have more than ten years of experience in the PCB industry, they are
Electronics Forum | Thu Mar 01 23:15:28 EST 2007 | jmelson
You shouldn't be worrying about "impedance" on a DC relay. Just measure the resistance with a Voltmeter/Ohmmeter. If you need to know the current draw, it will be 24/resistance The impedance of an AC relay changes as the armature moves from the "off
Electronics Forum | Thu Mar 01 23:05:29 EST 2007 | Khader
Kindly explain to me how to calculate 24V DC Relay Coil Impedence for a 2PDT Relay.
Electronics Forum | Sat Aug 01 02:45:26 EDT 2015 | sarason
When it becomes critical. ie impedance influences the design. Pulling a figure out of the air lets say 100 Mhz. If this is a first time board with TTL or 74HC series IC's you are not in that camp. regards sarason
Electronics Forum | Tue Jun 25 23:03:07 EDT 2019 | pcbjhycom
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Electronics Forum | Fri Mar 02 07:58:38 EST 2007 | samir
Ohm's law in action! :-) Thanks for the EE refresher.
Electronics Forum | Tue Jun 25 23:07:34 EDT 2019 | pcbjhycom
https://www.pcbjhy.com/impedance-control-pcb/56705887.html
Electronics Forum | Wed Jul 29 02:20:58 EDT 2015 | nick_arsi
Dear All, Kindly guide me which criteria should follow to do length and impedance matching in PCB layout? Right now I have a design with different type of flip flops, Do I have to length match of data pins of Flip Flops or just rout them as normal si
