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Re: what component to use to build a bridge rectifier??
Good point, and it's not just the peak AC voltage, but the peak instantaneous value of the AC voltage applied to one side _and_ whatever the capacitor that's typically connected to the other side,
By Roy J. Tellason <rtellason@...> · #8817 ·
Re: Looking for a mentor
Actually, I was gonna ask if he might cover plane fare from SC, but that's prob'ly a long shot... -DM P.S. Ok, enough poking fun. I really don't blame him, and I myself would have welcomed such a
By dangermouse <dangermouse1956@...> · #8819 ·
Re: what component to use to build a bridge rectifier??
Not a bad deal, that one. And a 400V part is likely to cover most of what we're doing with electronics these days, the higher voltages were only something I'd use for tube stuff way back when. There
By Roy J. Tellason <rtellason@...> · #8816 ·
Re: Looking for a mentor
I got a book on Risk Management you can study. Mike wrote:
By MikeK · #8815 ·
Looking for a mentor
Hello, I'm new to electronics and would love a little hands on help. I was wondering if anyone living in or near White Plains (westchester) or NYC would be willing to be a mentor. Thanks in advance
By mattnyc_ <mattsopho@...> · #8814 ·
Re: Converting graphics to web formats
Good man. You've been busy lately, huh? -DM
By dangermouse <dangermouse1956@...> · #8813 ·
Converting graphics to web formats
<dangermouse1956@g...> wrote: quite good. That's the one! I changed the folder named CAD to CAD and Graphics, moved your link for SmartDraw in there, and put a link to IrfanView. Alien Steve
By Steven AE7HD · #8812 ·
Re: what component to use to build a bridge rectifier??
I'm not sure if anyone has mentioned this yet, so sorry if I'm just repeating. Just be sure that you understand what PEAK inverse voltage means. This refers to the peak instantaneous value of the AC
By dangermouse <dangermouse1956@...> · #8811 ·
Re: what component to use to build a bridge rectifier??
<rtellason@b...> wrote: for any I agree but several of the surplus places (gold mine, alltronics,...) regularly have specials on 1n400x. I picked up 40 1N4004 for a buck a while back. At those prices
By Phil · #8810 ·
Re: Level shifting
You might also have been thinking about Irfanview, also free and quite good. -DM
By dangermouse <dangermouse1956@...> · #8809 ·
Re: what component to use to build a bridge rectifier??
To add to this, the price differences between different voltages of diode are very small, and I routinely use 1000V parts in stuff that I build. To shop for cheaper parts only makes a lot of sense
By Roy J. Tellason <rtellason@...> · #8808 ·
Re: external relay driver
hi dave, One big pitfall in using reed relays is not using them with the desired voltage.. believe me.. i've had hell in operating a 12 V rated relay on 9 V . dc relays .. inthis case.. i haven't
By Manoj Cherukat <manojc@...> · #8806 ·
external relay driver
Hi all, I want to make a board that will drive an external relay. Problem is that I don't know what the relay will be. I'm thinking of putting a mini relay on the board so the external relay is
By Dave Mucha · #8805 ·
Re: what component to use to build a bridge rectifier??
There is easiest alternatives to build a rectifier with a ready made modules. Hre are asy to implement, and almost you onley need to know the forward current and the forward voltage. But if you decide
By mario lopez · #8804 ·
PCB schematic software ( was Re: Level shifting
There are a few different approaches. Full design PCB software: Offers schematic design and gerber output for manufacture. demo versions are limited in some ways. Eagle WinQCad Proprietary software
By Dave Mucha · #8803 ·
Re: external relay driver
Assuming you are driving a DC relay coil, remember to add a clamp diode to protect the drive transistor from the inductive kick at turn off. This also limits the radiated noise that can upset the rest
By rgsparber@... · #8807 ·
[OT] Re: Level shifting
Also, you can use irfanview. It is one of the most feature rich converter and viewer available and it's free. Get it from http://www.irfanview.com/ BTW slightly OT, could someone recommend me a good
By Anmol Sondhi <anson@...> · #8802 ·
Re: what component to use to build a bridge rectifier??
I'm sure you have good reasons for reinventing the wheel so to speak, But I think you will find there are ready made and very cheap bridge rectifier modules for just about any occasion. I would
By peter tremewen · #8801 ·
Re: what component to use to build a bridge rectifier??
There are two ways to make a full wave bridge rectifier. Using 4 diodes, you first make two pairs of diodes by connecting the anode of one diode to the cathode of the other. Now take these two pairs
By Don Kinzer <dkinzer@...> · #8800 ·
what component to use to build a bridge rectifier??
I know that using 4 diodes can do that but can anyone give an example and point out what I shoudl take care during the selection of the components(e.g. specification, model, type....) Thanks
By Flux <bene-tam@...> · #8798 ·