Dear experts,
I have been searching the net and especially this site for a dc to dc adjustable output boost converter schematic allowing for a 4A output for many days and I've not found one, especially with the specs I need. I am hoping someone can point me in the right direction and or provide a schematic??? I am only begining in electronics and I don't have any formal education in it (so please be kind). I have recently built a few things (schematics provided) and I'm liking it a lot. But this has led me to try something more difficult.
The problem is that I would like to convert a 12vdc (solar/battery) power system (11vdc to 13.8vdc) to run my Direcway DW7000 satelite modem, instead of running a DC-AC inverter to convert my 12vdc system to 120AC then back into DC again (its a huge drain on my battery system to do that). The normal power supply is an AC-DC dual output supply, and I'll give the specs below. I have seen a site which gives an example of what is needed for this and suggests contacting an email address for the 12to24 adjustable converter (set to 19.55vdc). That email no longer works and so I will need to build my own (which I'm happy to do if I can find out how). Not being to far in my self education of electronics I'm hoping to get some help. The website with this DC-DC power solution is: **broken link removed**. I've even contacted the dustyfoot domain owner and he says he just hosts the information, and doesn't have any contact for the writter of the page. So following its instructions I feel confident that if I can get the schematic and parts list for the 12-24 adjustable converter that I can build these pieces into what they show. Perhaps there is a better solution, I don't know, but if its easy for a beginner and gives the necessary volts and current, I'm up for it. I can solder and do all of the wiring, etc., so if I can get a schematic for the 12-24 I should be able to make this happen. I'm trying to give a lot of information because a lot of the posts I've seen suggest that the "OP" didn't give enough information. So I hope all of this isn't overkill.
I have not seen anything commerical that can do this, so it looks like my only option is to build it if I can get the necessary help.
The original AC-DC Power supply specs:
Input 100-240V~ 2.0A(MAX.) 50-60Hz
Max. Ouptput Power: 64W
Pin No. 1,2 = +6.5V 1.3A
Pin No. 6,7 = +19.5V 2.85A
So can anyone help me? I have recently built a DC-DC buck mode converter found here: http://solorb.com/elect/solarcirc/buckreg1/index.html and I got it to work (suprizingly). I built it on a cheap radio shack perf board and I'm considering trying to design a PCB in eagle and do it better. But at least I know I can follow a schematic and parts list.
Thanks for your help,
John
I have been searching the net and especially this site for a dc to dc adjustable output boost converter schematic allowing for a 4A output for many days and I've not found one, especially with the specs I need. I am hoping someone can point me in the right direction and or provide a schematic??? I am only begining in electronics and I don't have any formal education in it (so please be kind). I have recently built a few things (schematics provided) and I'm liking it a lot. But this has led me to try something more difficult.
The problem is that I would like to convert a 12vdc (solar/battery) power system (11vdc to 13.8vdc) to run my Direcway DW7000 satelite modem, instead of running a DC-AC inverter to convert my 12vdc system to 120AC then back into DC again (its a huge drain on my battery system to do that). The normal power supply is an AC-DC dual output supply, and I'll give the specs below. I have seen a site which gives an example of what is needed for this and suggests contacting an email address for the 12to24 adjustable converter (set to 19.55vdc). That email no longer works and so I will need to build my own (which I'm happy to do if I can find out how). Not being to far in my self education of electronics I'm hoping to get some help. The website with this DC-DC power solution is: **broken link removed**. I've even contacted the dustyfoot domain owner and he says he just hosts the information, and doesn't have any contact for the writter of the page. So following its instructions I feel confident that if I can get the schematic and parts list for the 12-24 adjustable converter that I can build these pieces into what they show. Perhaps there is a better solution, I don't know, but if its easy for a beginner and gives the necessary volts and current, I'm up for it. I can solder and do all of the wiring, etc., so if I can get a schematic for the 12-24 I should be able to make this happen. I'm trying to give a lot of information because a lot of the posts I've seen suggest that the "OP" didn't give enough information. So I hope all of this isn't overkill.
I have not seen anything commerical that can do this, so it looks like my only option is to build it if I can get the necessary help.
The original AC-DC Power supply specs:
Input 100-240V~ 2.0A(MAX.) 50-60Hz
Max. Ouptput Power: 64W
Pin No. 1,2 = +6.5V 1.3A
Pin No. 6,7 = +19.5V 2.85A
So can anyone help me? I have recently built a DC-DC buck mode converter found here: http://solorb.com/elect/solarcirc/buckreg1/index.html and I got it to work (suprizingly). I built it on a cheap radio shack perf board and I'm considering trying to design a PCB in eagle and do it better. But at least I know I can follow a schematic and parts list.
Thanks for your help,
John