The biggest electric utility in Hawaii has had an extraordinary challenge this year keeping the lights on for the biggest island in the state. Hawaiian Electric resorted to rolling blackouts on Hawaii ...

We previously covered issues with iMac G5 power supplies, including a buzzing or humming noise emanating from the system that, in some cases, is variable dependent on processor usage, brightness ...

1] Does the PSU fan spin on startup? Some users reported that their Power Supply Unit fan spins on startup but stops after some time. Others reported that the PSU fan does not spin even on startup.

Power supply manufacturers sometimes hear from customers with unfortunate dilemmas, such as, “I need to operate the power supply outside its rated voltage range.” Or, “What happens if I exceed my ...

How accuracy is defined in DC programmable power supplies How and why the power supply experiences voltage output errors How to wire test leads and sense leads for accurate measurements When testing ...