Thank you for taking the time to explain the principle of operation and demonstrating the switching circuit. I am looking forward to the next episode. When appropriate, could you talk about power factor and explain why it is sometimes necessary with some switch mode power supplies? Thank you !
This is going to be a very interesting series of videos. I hope (but doubt) that everyone watching them listens to your introduction carefully. Thank you for sharing your knowledge with us. Regards, David
Awesome start of a great series! Could you please release the next part? I'm inflight from Las Vegas to Houston and there is still 1 hour and 13 minutes to kill with reasonable content! 😂 You made the 10 bucks for inflight Wi-Fi money well spent! 👍
Nice! I'm very interested in the whole calculation. I might design a switching PSU for one of my projects as I can't find a suitable one with the correct voltages and form factor
Fantastic, I've been looking for information on building a discreet switch mode power supply and have found information difficult to come by. I'm working on a discreet TTL home-brew CPU project with a look and feel of something like a PDP-11/70... And I would like to build a discreet switching PSU for it. I'm using 1975 as my benchmark year and aside from using 74ls vs plain 74 series ics, I'm trying to avoid any parts newer than that date if I can.
Yes it will work just fine as long as the switch (jumper) is in the 220v position. I only do this for testing at reduced current and voltage so 60V is 60V.
Looks like you have a mains AC current limited source on your workbench, what is it?.......I saw it on your last video. Been meaning to get something to help with my own test equipment repairs.
It is not current limited although it is fused. (www.ebay.co.uk/itm/121562973292?itmmeta=01HX4MQ36KCXS2JB7XTF7Q2BDX&hash=item1c4db7c46c:g:ZcsAAOSw1QpZ97u4&itmprp=enc%3AAQAJAAAA8B56k67tIO0%2Fo6HXJuTuNlCwp%2FoBwo5Wg5ygifCKWAct%2BXqGm7mZgmTu6ny0n8os%2Fd%2FQaL43YqRi4L0aLiDf1sP4KqRirMw1vR08KgP67aaNWYsBWsDFwH54Tf78WAP3gccdAJ%2F8W5GsCnC7W8v8B%2Fd9GUZCHbnME6DBPw0MRUUXXwniRW2bohPmJk7%2BwxW%2Funk7dkMYysY1KQnv9iMiKZihRz2Noi8iNnvSwzMar2kt1QsoOYnogto9VrehzWFGYRt2LGwYM1kdKpwC5jfjuK61kARqorwUuNSlb9bpguC%2FFMPSGRr4hvOZcKC2xZAC0A%3D%3D%7Ctkp%3ABk9SR8Cz3JTpYw) No Affiliation. For testing this supply I will be using a dim bulb tester and the DC bench supply but I will show that process in a later video.
@@JerryWalker001 Ok, cheers. I have been eyeing up this via search engine.......appears to have current limiting functions, and various sizes available: 1PC New Variable Frequency AC Power Supply APS4000A Storage type 350VA
Развлечения
Where's the fun in buying something off the shelf!.......bespoke all the way for a fun project.
Exactly
Thank you for taking the time to explain the principle of operation and demonstrating the switching circuit. I am looking forward to the next episode. When appropriate, could you talk about power factor and explain why it is sometimes necessary with some switch mode power supplies? Thank you !
Great, work like this is sadly very scarce at the moment on the you tubes so this is very much appreciated....cheers.
This is going to be a very interesting series of videos. I hope (but doubt) that everyone watching them listens to your introduction carefully. Thank you for sharing your knowledge with us. Regards, David
There is a first time for everything :)
Awesome start of a great series! Could you please release the next part? I'm inflight from Las Vegas to Houston and there is still 1 hour and 13 minutes to kill with reasonable content! 😂
You made the 10 bucks for inflight Wi-Fi money well spent! 👍
Thanks Jerry, I enjoyed the video very much.
Nice! I'm very interested in the whole calculation. I might design a switching PSU for one of my projects as I can't find a suitable one with the correct voltages and form factor
Fantastic, I've been looking for information on building a discreet switch mode power supply and have found information difficult to come by. I'm working on a discreet TTL home-brew CPU project with a look and feel of something like a PDP-11/70... And I would like to build a discreet switching PSU for it. I'm using 1975 as my benchmark year and aside from using 74ls vs plain 74 series ics, I'm trying to avoid any parts newer than that date if I can.
Nice work, the 110v switch is actually pretty clever - won't work with a DC input on 110v mode tho will it? 😉
Yes it will work just fine as long as the switch (jumper) is in the 220v position. I only do this for testing at reduced current and voltage so 60V is 60V.
Looks like you have a mains AC current limited source on your workbench, what is it?.......I saw it on your last video. Been meaning to get something to help with my own test equipment repairs.
It is not current limited although it is fused. (www.ebay.co.uk/itm/121562973292?itmmeta=01HX4MQ36KCXS2JB7XTF7Q2BDX&hash=item1c4db7c46c:g:ZcsAAOSw1QpZ97u4&itmprp=enc%3AAQAJAAAA8B56k67tIO0%2Fo6HXJuTuNlCwp%2FoBwo5Wg5ygifCKWAct%2BXqGm7mZgmTu6ny0n8os%2Fd%2FQaL43YqRi4L0aLiDf1sP4KqRirMw1vR08KgP67aaNWYsBWsDFwH54Tf78WAP3gccdAJ%2F8W5GsCnC7W8v8B%2Fd9GUZCHbnME6DBPw0MRUUXXwniRW2bohPmJk7%2BwxW%2Funk7dkMYysY1KQnv9iMiKZihRz2Noi8iNnvSwzMar2kt1QsoOYnogto9VrehzWFGYRt2LGwYM1kdKpwC5jfjuK61kARqorwUuNSlb9bpguC%2FFMPSGRr4hvOZcKC2xZAC0A%3D%3D%7Ctkp%3ABk9SR8Cz3JTpYw) No Affiliation. For testing this supply I will be using a dim bulb tester and the DC bench supply but I will show that process in a later video.
@@JerryWalker001 Ok, cheers. I have been eyeing up this via search engine.......appears to have current limiting functions, and various sizes available:
1PC New Variable Frequency AC Power Supply APS4000A Storage type 350VA
@@JerryWalker001look up APS4000A, B & C, seems to have current setting.
@@IanScottJohnston Possibly but I would never use an inverter supply for development or testing.