Recent content by vicbin
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SkyRC — IFA 2014 — MC3000 charger-analyzer
Re: 2nd gen dreamcharger presented on IFA Berlin 2014… Mind point the web link to that russian hack site ?- vicbin
- Post #4,138
- Forum: Flashlight Electronics - Batteries Included
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SkyRC — IFA 2014 — MC3000 charger-analyzer
New MC3000 owner here, purchased in Nov from GB, PCB Rev 1.5, firmware 1.10 and with latest case. Just curious how you guys pulled these connectors "easily" as they are glued like this ? :thinking:- vicbin
- Post #4,068
- Forum: Flashlight Electronics - Batteries Included
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Power Supply with Switching Pre-Regulator
Greetings !!!! Hi Al, Good news on the linear part, .... IT WORKS !!!! Now, "brief report" : - Vin to LM317 = 25V with 2 Amps capable source - Op-amp supply +15 and -15 Volt was supplied by batteries with 7815 and 7915. Don't worry, it was closely monitored all the time. - Bypassed the...- vicbin
- Post #170
- Forum: Flashlight Electronics - Batteries Included
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Let's Get Cracking!! (Inductors)
Re: Let\'s Get Cracking!! (Inductors) Hi there Al, Wow, cool thread ! Can I join this 'cracking" or slaughtering ferrite cores games, please ? he..he.. I'll be back for this thread soon. Vic- vicbin
- Post #2
- Forum: Flashlight Electronics - Batteries Included
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Power Supply with Switching Pre-Regulator
GREETINGS FOLKS ! Really sorry guys, maybe you're wandering where the heck am I recently, again, just back from offisite/job assigment and back home just yesterday ! Goosh, wished I had the energy level like a teenager ! Wow, "A LOT" of updates ! But anyway , I think I will skip the tons...- vicbin
- Post #166
- Forum: Flashlight Electronics - Batteries Included
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Power Supply with Switching Pre-Regulator
Hello, Hi Pablo, Hey, nice project you're playing at , thanks for the link ! This make me thing to try it too since I got tons of old hardware back to early IBM PC-XT era ! Hi Al, Really sorry cause I haven't start breadboarding the linear part since I'm not fully recovered yet. The...- vicbin
- Post #150
- Forum: Flashlight Electronics - Batteries Included
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Power Supply with Switching Pre-Regulator
Hi Pablo, Wow, what a cool stuffs you got there and LM1084 too, congratulations ! hmm..looking at your dino size orange Cin picture , is that your stepdown transformer at lower right ? Geez.. those caps will eat it and it'll melt into a nice iron core scuplture once you power up.... he..he...- vicbin
- Post #145
- Forum: Flashlight Electronics - Batteries Included
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Power Supply with Switching Pre-Regulator
Hi Pablo, I will try this coming weekend to breadboard the circuit on the linear part and post the result here. Wish me luck ! Update: How much do you pay for that multiturn pot ? Is that included the low 100 Ohm ? ...sigh...I still can't find it here ! Vic- vicbin
- Post #132
- Forum: Flashlight Electronics - Batteries Included
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Power Supply with Switching Pre-Regulator
Hi Al, I don't know what kind or type of that caps, the seller was saying it is MKT type ? Is that Mylar ? If it is mylar, is it true they're low ESR & high freq cap ? I need to find a polypropylene cap for the 4.5 dmm, since it needs a very low leak cap for accuracy and was goggling around...- vicbin
- Post #129
- Forum: Flashlight Electronics - Batteries Included
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Power Supply with Switching Pre-Regulator
Hi Al, Sorry about the double caps & inductors question, didn't mean to distract you and I aware how busy you are ! And also I will concentrating on breadboarding the linear part very soon and will update you. [ QUOTE ] Pretty simple, and there's no reason why you cant apply this technique...- vicbin
- Post #124
- Forum: Flashlight Electronics - Batteries Included
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Power Supply with Switching Pre-Regulator
Hi Al, Yes please, show me how to drive the LED independently. From the LM317 datahsheet, there a note about protection diode across the Vin and Vout to avoid the damage when there is a short circuit, is it needed in this version ? Also there is a note that a minimal load/output current...- vicbin
- Post #118
- Forum: Flashlight Electronics - Batteries Included
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Power Supply with Switching Pre-Regulator
Hi Pablo, Thanks for the updates ! That is very nice of you ! My 1000uF/100V cap dimensions : Diameter : 18mm Length : 41mm (lead not included, cap body only) Lead size : 0.75 mm Distance between two leads : 7 mm Some suggestions and considerations on PCB design, and it is more applicable...- vicbin
- Post #115
- Forum: Flashlight Electronics - Batteries Included
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Power Supply with Switching Pre-Regulator
Hi Pablo, Yep, that software is very powerful, it supports advanced management features like scripting, bill of material, cost, customized library, etc..etc ... tons of other features that I don't understand what are they for ? The bad news for me is I just downloaded their "tutorial...- vicbin
- Post #111
- Forum: Flashlight Electronics - Batteries Included
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Power Supply with Switching Pre-Regulator
Great, more CPRer are joining the club ! G'day Vince, Wellcome ! Thanks, yeah that comics was supposed to freshen that long serious discussion. I think it's time to make the new one here, before this thread going to heat up since Al is finalising the circuit ! Pablo, I'm planning to use...- vicbin
- Post #109
- Forum: Flashlight Electronics - Batteries Included
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Power Supply with Switching Pre-Regulator
Hi Al, Yippee....CC indicator ! [ QUOTE ] Guess what? I cant find the darn 100 ohm pot for less than something like $6.00 !!! That's not good. Now i know why those big power supplyes are $150.00 and up...those darn pots are so expensive ! [/ QUOTE ] If the final result is good, I'm...- vicbin
- Post #95
- Forum: Flashlight Electronics - Batteries Included
