B&K Precision touts multi-range DC power supply
-- Test & Measurement World, 2/26/2008 7:24:00 PM
Differing from conventional power supplies with fixed outputs, B&K Precision’s Model 9110 DC power supply automatically recalculates the voltage/current limits for each setting and provides 100 W of output power in any voltage/current combination within its rated limits of 60 V and 5 A. By expanding the number of choices of maximum power volt/amp combinations, the Model 9110 enables you to reduce the number of individual power supplies needed for your application.
The Model 9110 is a digitally controlled, mixed-mode linear/switching DC power supply that provides 10-mV/1-mA resolution over its full range. Compact and lightweight, the unit is 3.47 in. wide, 6.9 in. high, and 11.11 in. deep. It can store and recall 4X100 groups of preset volt/amp values and features over-current, over-voltage, and over-temperature protection.
The multi-range supply automatically recalculates the voltage/current limits for each setting, forming a constant-power hyperbolic-shaped boundary. For example, when setting the voltage to the maximum of 60 V, the maximum current value is 100W/60V = 1.66 A. For a 20-V setting, the maximum current is 5 A. Full output power of 100 W is possible for all volt/amp combinations that lie on the hyperbolic curve.
The Model 9110 costs $275 and comes with a line cord, user manual, and one-year warranty.
B&K Precision, www.bkprecision.com.
