Sorensen DCR150-12B

Designed for either bench or rack use, the typical DCR-B power supply provides a highly regulated, precise dc output, adjustable over a wide range. It operates from a nominal 115 VAC (208/220/230 Vac inputs are available as options) and exhibits a rapid response to transients, both load and line.

DCR-B series supplies are phase controlled type with SCR's (Silicon Controlled Rectifiers) or Triacs at the input to the transformer, followed by a passive LC filter. This design allows for a wide range of output voltages, simplicity of design, and offers large amounts of regulated power at relatively high efficiencies compared to linear regulators.

Silicon type semiconductors are used extensively in DCR-B circuitry, and contribute significantly to the units wide ambient temperature range characteristic. Low dissipation transistors and diodes are located on a single printed circuit board while high dissipation devices are heat sinked to aluminum brackets and heatsinks.

All controls used during normal operation, except the OVP control, are mounted on the front panel. These include a power circuit breaker, FINE and COARSE VOLTAGE adjust potentiometers, and FINE and COARSE CURRENT adjust potentiometers. The system output is taken across a terminal pair at rear tirminal strip TB2.