DIY power supplies for every condition

“A voltage regulator works by taking an enter voltage and stepping it all the way down to match its specified output voltage. If a voltage regulator is used right here, the distinction between the enter and output voltages will dissipate as warmth, i.e. the voltage regulator will warmth up badly. To attenuate warmth dissipation, set the enter voltage in order that it's about 3 V larger than the output voltage of any regulator linked to it. Additionally, when the board is working at DC, consider that the bridge rectifier will drop the enter voltage by about 1 V.

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Creator: Clive “Max” Maxfield

I've a buddy (cease laughing, it’s true!). We're all referred to as Joe (it’s his identify). To be sincere, I don’t keep in mind how we met, solely by way of the web. As I wrote these phrases earlier at present, Joe and I have been chatting over the topic by way of e-mail. Joe mentioned he had emails dated from April 2006, however these emails confirmed that we have been already having discussions, so we decided that we have been launched to one another on April 1, 2005. That mentioned, in simply three extra years, we’ve recognized one another for 20 years (placing on our social gathering hats). Amongst different issues, it makes me suppose that a big share of my closest buddies now meet by way of the web, which will certainly get individuals considering.

Have you ever seen the TV collection The Equalizer starring Queen Latifah as Robyn McCall? One in every of her buddies on the present is Harry Keshegian (performed by Adam Goldberg). Harry is a hacker who lives underground in an deserted subway station. Since I grew up watching Batman and Robin, I at all times thought it was his “Batcave”. That’s it, Joe is an Englishman like Harry who barely leaves the home through the day, dwelling in an idyllic hamlet simply exterior Cambridge, the place he works his full-time (daytime) job by telecommunications as a senior software program for the London Ambulance Service and {hardware} engineers. At evening (typically in a single day), Joe creates jaw-dropping thingamajigs and thingamabobs you’ve by no means seen earlier than.

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