TY - JOUR
T1 - A novel converter topology for multiple individually regulated outputs
AU - Chakraborty, Sombuddha
AU - Jain, Amit Kumar
AU - Mohan, Ned
PY - 2006/3
Y1 - 2006/3
N2 - Power supply voltages in digital systems have reduced considerably in recent years, and often digital components requiring different voltages are present on the same board. This has increased the demand for multiple output power distribution systems with tight individual load voltage regulation. This paper presents a power distribution system having a central power supply that acts as a controlled current source whose output is connected to individual loads on a time shared basis. All the magnetics are concentrated in the converter acting as the current source. The current source can be realized by a current controlled buck, buck-boost, or single-ended primary inductance converter (SEPIC). First, a comparative analysis of buck, buck-boost, and SEPIC based implementation of the current source is carried out. Next, a buck-based current source implementation with constant frequency pulse-width modulation control for the output voltages is described. Detailed component and control design, simulations, and experimental results for a 100-W prototype are presented.
AB - Power supply voltages in digital systems have reduced considerably in recent years, and often digital components requiring different voltages are present on the same board. This has increased the demand for multiple output power distribution systems with tight individual load voltage regulation. This paper presents a power distribution system having a central power supply that acts as a controlled current source whose output is connected to individual loads on a time shared basis. All the magnetics are concentrated in the converter acting as the current source. The current source can be realized by a current controlled buck, buck-boost, or single-ended primary inductance converter (SEPIC). First, a comparative analysis of buck, buck-boost, and SEPIC based implementation of the current source is carried out. Next, a buck-based current source implementation with constant frequency pulse-width modulation control for the output voltages is described. Detailed component and control design, simulations, and experimental results for a 100-W prototype are presented.
KW - Buck based multiple output
KW - Controlled current source
KW - Individual load regulation
KW - Multiple output power supply
KW - Power distribution system (PDS)
KW - Single-ended primary inductance converter (SEPIC)
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U2 - 10.1109/TPEL.2005.869741
DO - 10.1109/TPEL.2005.869741
M3 - Article
AN - SCOPUS:33644910693
SN - 0885-8993
VL - 21
SP - 361
EP - 369
JO - IEEE Transactions on Power Electronics
JF - IEEE Transactions on Power Electronics
IS - 2
ER -