Amateur radio has been somewhat slow to accept switching power supplies for powering communication equipment. This is a pity, because "switchers", as they are often called, offer very attractive features, like small size, low weight, high efficiency, and low heating. True, they are generally more complicated than linear power supplies, but this is easily compensated by the fact that they can be built for a lower cost. Some early switchers produced an objectionable amount of RF noise, bringing the whole switching technology into bad reputation. But by proper design techniques and careful EMI filtering it is possible to build very quiet switchers.

     Repairing Switching Power Supply
     Power Supplies
     30V 10A Variable Bench Power Supply
     12V 2A Linear Power Supply
     30V/4A Adjustable Bench Power Supply
     Adjustable Lab Power Supply 0-30V 0-3A
     Laboratory Power Supply 0-30 Volt
     5V Power Supply With Overvoltage Protection.
     High Current Regulated Supply By LM317
     1.5V - 30V 1.5A LM317 Variable Power Supply

Circuit-Zone.com © 2007-2025. All Rights Reserved.