Limit cycle oscillation reduction for digital low dropout regulators

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United States of America Patent

PATENT NO 9946281
SERIAL NO

15427059

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Abstract

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A method achieves minimum limit cycle oscillation (LCO) amplitude of a digital low dropout regulator (D-LDO) by adding auxiliary unit power transistors in parallel with the main PMOS array with selected unit strength and LCO mode. An improved D-LDO with reduced LCO amplitude includes an auxiliary power transistor array in selected strength driven by an output of a comparator in parallel with a main power transistor array.

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Patent Owner(s)

Patent OwnerAddress
UNIVERSITY OF MACAUTHE UNIVERSITY OF MACAO TAIPA CHINA UNIVERSITY OF MACAO MACAO MACAO

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Huang, Mo Macau, CN 6 8
Lu, Yan Macau, CN 294 4203
Martins, Rui Paulo da Silva Macau, CN 32 159
Sin, Sai-Wang Macau, CN 1 4
U, Seng-Pan Macau, CN 14 153

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