Gsrokmix
Well-known member
- Joined
- Jul 21, 2015
- Messages
- 51
Hi,
I am building a power supply that will power a pair of API style pre-amps I am building. I would like to test the p.s. with my DC electronic load. The instrument has only 1 channel, and I was wondering if I can just put a load on the + rail, without putting a load on the - rail? ( And then check just the negative rail) There is also the phantom power rail, which is not always loaded normally.
The P.S. is a linear supply w/ a 120V to 28V transformer. I am using LM7818 + LM7918 regulators. The secondary of the transformer says it will deliver 500mA, which may be cutting it close with 2 pre-amps (its intended use) hooked up, which is why I wanted to load down the rail at 500mA for awhile to make sure the supply is stable.
I appreciate any and all advice.
Thanks very much!
George
I am building a power supply that will power a pair of API style pre-amps I am building. I would like to test the p.s. with my DC electronic load. The instrument has only 1 channel, and I was wondering if I can just put a load on the + rail, without putting a load on the - rail? ( And then check just the negative rail) There is also the phantom power rail, which is not always loaded normally.
The P.S. is a linear supply w/ a 120V to 28V transformer. I am using LM7818 + LM7918 regulators. The secondary of the transformer says it will deliver 500mA, which may be cutting it close with 2 pre-amps (its intended use) hooked up, which is why I wanted to load down the rail at 500mA for awhile to make sure the supply is stable.
I appreciate any and all advice.
Thanks very much!
George