Jun 20, 2018 #1 S shanmei Advanced Member level 1 Joined Jul 26, 2006 Messages 430 Helped 8 Reputation 16 Reaction score 8 Trophy points 1,298 Location USA Activity points 4,496 The input current contains both ac and dc signal, how can I extract dc current, and only have ac current? Thanks.
The input current contains both ac and dc signal, how can I extract dc current, and only have ac current? Thanks.
Jun 20, 2018 #2 KlausST Advanced Member level 7 Joined Apr 17, 2014 Messages 25,158 Helped 4,868 Reputation 9,757 Reaction score 5,536 Trophy points 1,393 Activity points 168,346 Hi, Not much specifications, mot much explanation... DC is very, very, very low frequency...this is the difference to AC. Although you don't say about your AC frequency... I'd use a filter. Klaus
Hi, Not much specifications, mot much explanation... DC is very, very, very low frequency...this is the difference to AC. Although you don't say about your AC frequency... I'd use a filter. Klaus
Jun 20, 2018 #3 S shanmei Advanced Member level 1 Joined Jul 26, 2006 Messages 430 Helped 8 Reputation 16 Reaction score 8 Trophy points 1,298 Location USA Activity points 4,496 The ac range is around 1MHz- 500MHz signal, maximum value is 20mA. DC signal maximum value is also 20mA range. Thanks.
The ac range is around 1MHz- 500MHz signal, maximum value is 20mA. DC signal maximum value is also 20mA range. Thanks.
Jun 20, 2018 #4 E Easy peasy Advanced Member level 6 Joined Aug 15, 2015 Messages 4,746 Helped 1,402 Reputation 2,804 Reaction score 1,933 Trophy points 1,393 Location Melbourne Activity points 26,219 If you want only the AC current - as you said in your 1st post, then a capacitor will block the DC and only let the AC thru ...
If you want only the AC current - as you said in your 1st post, then a capacitor will block the DC and only let the AC thru ...
Jun 20, 2018 #5 S smijesh Advanced Member level 1 Joined Sep 20, 2013 Messages 412 Helped 163 Reputation 326 Reaction score 163 Trophy points 1,323 Activity points 4,038 Series connected capacitors or transformer will block DC We are using this technology in audio amplifiers
Series connected capacitors or transformer will block DC We are using this technology in audio amplifiers