hardi@blake.acs.washington.edu (Hardi Sutjipto) (07/09/89)
I was thinking to design a DC power supply with 12V DC, 20 Amp, and very smooth DC output, without having a stepdown AC transformer. Transformer for 20 amp is usually big in size, inconvenient, heavy, hard to find, and expensive. Any comments, suggestions will be appreciated. Thanks. Internet : hardi@blake.acs.washington.edu UUCP : .....!uw-beaver!blake!hardi
barry@hprmokg.HP.COM (Barry Fowler) (07/10/89)
You can buy the same at even higher currents through amateur radio related vendors. They are used to supply high current DC (13.6 volts, simulating a car battery). Check QST and 73 magazines for their advertisements. If you don't have any luck, e-mail me and I will look them up at home.
brian@ucsd.EDU (Brian Kantor) (07/12/89)
I got tired of not having enough 12v (actually, 13.5v like in a car) on my workbench to test my ham radios with, so I got three of those 5v high-current switching supplies and wired them in series, then turned each one down to 4.5v with the adjustment pot. Presto! 13.5V at 150A. - Brian