| ??? 03/21/05 17:03 Read: times |
#90156 - Re: The better way. Responding to: ???'s previous message |
Dear Erik,
Thanks a lot for your reply, To really make this work, after all you are dealing with "unmanageable" currents, I would make an unregulated, say, 24V supply and use separate DC/DC converters for the individual voltages. My guesss is that the ~$10 cost of each converter (<3A) will not kill a project like yours. I am using the said voltages for following applications. +5V @ 750mA --> Micro and other digital circuitary power supply. +12V & -12V @ 250mA --> Analog section power supply. +20V @ 1.5A --> Pulse transformer excitation for thyristor firing. +24V @ 250mA --> Various DC inputs such as Foot switch etc. 6-0-6 AC --> Zero cross detection and supply voltage monitoring. I am using isolated grounds for these diffrent supplies and the grounds are joined at one place under the ADC. If I use DC-DC covnerters will it not create ground loops since the grounds are already joined under the ADC. Please correct me if I am wrong. Thanks & Regards, Prahlad Purohit |
| Topic | Author | Date |
| SMPS problem? | 01/01/70 00:00 | |
| Quality counts.. | 01/01/70 00:00 | |
| Re: Scoping into the problem. | 01/01/70 00:00 | |
| Load Regulation | 01/01/70 00:00 | |
| Re: Load Regulation. | 01/01/70 00:00 | |
| the better way | 01/01/70 00:00 | |
| Re: The better way. | 01/01/70 00:00 | |
| DC/DC grounding | 01/01/70 00:00 | |
| SMPS | 01/01/70 00:00 | |
| Required address | 01/01/70 00:00 | |
| Thaks Raghu | 01/01/70 00:00 | |
Minmax in Bombay | 01/01/70 00:00 |