Title :
A 50 A, 1-μs-rise-time, programmable electronic load instrument for measurement of microprocessor power supply transient performance
Author :
McNeill, John A. ; Lawler, Melinda ; Levesque, Gregory ; Ruiter, Jacob ; Noon, James
Author_Institution :
Dept. of Electr. & Comput. Eng., Worcester Polytech. Inst., MA, USA
Abstract :
A prototype instrument has been developed which is capable of providing a transient current of up to 50 A with a rise time as low as 1 μs. The minimum current maximum current, and rise time are digitally programmable. This instrument which simulates the transient current loads drawn by a high-speed microprocessor, allows measurement of the transient performance of switch-mode power supplies designed for use in PC systems. The frequency and duty cycle of the load transient waveform is determined by a digital input signal
Keywords :
computer power supplies; switched mode power supplies; transient analysers; transients; waveform analysis; 1 mus; 50 A; analogue programming; digital input signal; duty cycle; frequency; high-speed microprocessor; load transient waveform; microprocessor power supply; minimum current maximum current; programmable electronic load instrument; rise time; switch-mode power supplies; transient current loads; transient performance; Inductance; Instruments; MOSFET circuits; Monitoring; Power dissipation; Power supplies; Prototypes; Switches; Testing; Voltage control;
Conference_Titel :
Instrumentation and Measurement Technology Conference, 2000. IMTC 2000. Proceedings of the 17th IEEE
Conference_Location :
Baltimore, MD
Print_ISBN :
0-7803-5890-2
DOI :
10.1109/IMTC.2000.846896
