Journal article
Analysis of Charge Pump Topologies for High Voltage Mobile Microphone Applications
This paper presents a novel analysis of charge pump topologies for very high voltage capacitive drive micro electro-mechanical system microphones. For the application, the size and power consumption are sought to be minimized, and a voltage gain of 36 is achieved from a 5 V supply. The analysis compares known charge pump topologies, taking into consideration on resistance of transistors and parasitic capacitances of transistors and capacitors in a 180 nm silicon-on-insulator process.
The analysis finds that the Pelliconi charge pump topology is optimal for generating very high bias voltages for micro electro-mechanical system microphones from a low supply voltage when the power consumption and area are limited by the application.
Language: | English |
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Publisher: | Kaunas University of Technology |
Year: | 2021 |
Pages: | 31-39 |
ISSN: | 20295731 and 13921215 |
Types: | Journal article |
DOI: | 10.5755/j02.eie.28827 |
ORCIDs: | Jorgensen, Ivan H.H. and Toft, Jakob K. |