My first flyback, Help!

Started by George Herold in sci.electronics.design20 hours ago 33 replies

Hi all, well I went and moded JL's flyback with the LTC3803. I stuck the file in dropbox, but if someone can't access that I'll be happy to...

Hi all, well I went and moded JL's flyback with the LTC3803. I stuck the file in dropbox, but if someone can't access that I'll be happy to copy it here. https://www.dropbox.com/s/gd4zngedu9za4dc/GH_flyback_2.asc?dl=0 For the inductor I picked one of the Versa-Pak inductors with 6 coils on one form. And made a 1:5 transformer. So I first assumed I'd be running in continuous conduct...


OT: Best streaming device?

Started by Jim Thompson in sci.electronics.design1 day ago 24 replies

OT: Best streaming device? Amazon Firestick, Roku Express, ... , what is recommended? ...Jim...

OT: Best streaming device? Amazon Firestick, Roku Express, ... , what is recommended? ...Jim Thompson -- | James E.Thompson | mens | | Analog Innovations | et | | Analog/Mixed-Signal ASIC's and Discrete Systems | manus | | STV, Queen Creek, AZ 85142 Skype: ...


Contacts vs Glasses

Started by amdx in sci.electronics.design1 day ago 21 replies

I have worn contacts for 20 years. When on the computer I slip on a set of 1.5 or 1.75 diopter readers. Recently I had the eye doc give me two...

I have worn contacts for 20 years. When on the computer I slip on a set of 1.5 or 1.75 diopter readers. Recently I had the eye doc give me two prescriptions one for contacts the other for bifocals. I did this thinking I could give my eyes a break once in a while, as I where my contacts 30+ days, take them out and install new ones. I only take them out for a few minutes if they get folded...


Another court case headed to SCOTUS?...

Started by Jim Thompson in sci.electronics.design2 days ago 44 replies

Another court case headed to SCOTUS?... ...Jim Thompson -- | James E.Thompson ...

Another court case headed to SCOTUS?... ...Jim Thompson -- | James E.Thompson | mens | | Analog Innovations | et | | A


Standard mains voltage in the US?

Started by Pimpom in sci.electronics.design2 days ago 41 replies

When I started out in electronics some 40 years ago, the few books and magazine articles I could get my hands on - mostly of American origin -...

When I started out in electronics some 40 years ago, the few books and magazine articles I could get my hands on - mostly of American origin - often cited 117V as the mains voltage. Later on, I've come across various figures like 110, 115 and 120 volts. What, if any, is the standardized domestic supply voltage there, notwithstanding variations in what you actually get in your home? (O...


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