Title :
A capacitor-fed, voltage-step-down, single-phase, nonisolated rectifier
Author :
Sokal, Nathan O. ; Sum, K. Kit ; Hamill, David C.
Author_Institution :
Design Autom. Inc., Lexington, MA, USA
Abstract :
A simple rectifier, little documented in the literature, provides a low-voltage output from an AC-mains supply, with inherent short-circuit protection. We present waveforms, a theoretical analysis, simulation results (within ±2% of theoretical predictions over a 512:1 range of the principal design parameter) and experimental confirmation, and propose variants with improved regulation. The line-harmonic characteristics comply with IEC 1000-3-2, Class A, at power levels up to 250 W. This rectifier finds application in equipment requiring a low-voltage, nonisolated DC supply
Keywords :
capacitors; harmonics; protection; rectifying circuits; short-circuit currents; 250 W; AC-mains supply; IEC 1000-3-2 Class A; capacitor-fed nonisolated rectifier; inherent short-circuit protection; line-harmonic characteristics; low-voltage output; nonisolated DC supply; single-phase nonisolated rectifier; theoretical analysis; voltage-step-down nonisolated rectifier; Batteries; Capacitors; Circuits; Costs; IEC standards; Impedance; Inductors; Rectifiers; Switched-mode power supply; Voltage;
Conference_Titel :
Applied Power Electronics Conference and Exposition, 1998. APEC '98. Conference Proceedings 1998., Thirteenth Annual
Conference_Location :
Anaheim, CA
Print_ISBN :
0-7803-4340-9
DOI :
10.1109/APEC.1998.647693
