With the rising penetration of energy-consuming native direct current (DC) loads in commercial and residential applications, and the increasing focus on the adoption of energy-efficient systems to fulfill ambitious national goals, the debate over the relative merits of AC versus DC – based systems has intensified.
The components include converters (central rectifiers and DC-DC converters), DC circuit breakers, DC power distribution units (PDUs), and DC power management systems (monitoring and control) installed for building-level, floor / room-level, and device -level conversion.
Programmable DC power sources are an essential tool in product development and production testing of a wide range of electronic devices and systems. In many instances, functional test requires submitting the device-under-test (DUT) to a wide range of operating conditions. In some cases, the DUT draws constant power under variable input conditions.
Common examples are DC motor drives and regulated DC / DC supplies. In such circumstances, the ability of the programmable DC source to provide increased current at reduced output voltage is valuable. This ability is known as “Autoranging”. DC supplies without auto-ranging often requires users to oversize or use multiple supplies to test the DUT under varying input voltage conditions.