Hi All,
My first post here. I have built many circuits and I also program PIC's. I've etched, ironed on, and milled PCB's for my projects, ETC,ETC.
And I've built many power supplies using LM78xx and LM317's including a three output unit on my bench that has separate outputs for 5vdc,12vdc and adjustable 1.2 to 20 vdc. All of these are about 1.5 amps max with heatsinks and the adjustable one has digital LED displays for volt and current.
I say all this so you guys will know I'm not a complete n00b but I have never built a supply with adjustable current output so I'll explain my application below.
I need to build a supply for an electroplating setup with the following requirements...
Voltage adjustable from ~1.2 to ~10 VDC
Current adjustable from ~0 to ~6 Amps
This will never be used for any electronics applications. I am planning to get a high current car battery charger and use the transformer and other parts of it for this PS.
I expect to heatsink and use at least one fan as well and I'll have displays for V and A of course.
So my question (finally) is, can you please give me some advice on what IC I should use for the adjustable current and/or a schematic of one ?
I apologize for being long winded on all this, if I've left any info out, let me know and thanks for any help,
Steve
My first post here. I have built many circuits and I also program PIC's. I've etched, ironed on, and milled PCB's for my projects, ETC,ETC.
And I've built many power supplies using LM78xx and LM317's including a three output unit on my bench that has separate outputs for 5vdc,12vdc and adjustable 1.2 to 20 vdc. All of these are about 1.5 amps max with heatsinks and the adjustable one has digital LED displays for volt and current.
I say all this so you guys will know I'm not a complete n00b but I have never built a supply with adjustable current output so I'll explain my application below.
I need to build a supply for an electroplating setup with the following requirements...
Voltage adjustable from ~1.2 to ~10 VDC
Current adjustable from ~0 to ~6 Amps
This will never be used for any electronics applications. I am planning to get a high current car battery charger and use the transformer and other parts of it for this PS.
I expect to heatsink and use at least one fan as well and I'll have displays for V and A of course.
So my question (finally) is, can you please give me some advice on what IC I should use for the adjustable current and/or a schematic of one ?
I apologize for being long winded on all this, if I've left any info out, let me know and thanks for any help,
Steve