Negative High Voltage DC-DC Converter Using a New Cross-Coupled Structure

Jun Zhao, Kyung Ki Kim, Yong-Bin Kim
2015 Journal of Integrated Circuits and Systems  
In this paper, a negative high voltage DC-DC converter using a new cross-coupled charge pump structure has been proposed, which can solve the shoot-through current problem of the conventional charge pump by using a four clock phase scheme. Also, by switching the power supply to each stage based on the supply voltage, a variable voltage gain can be obtained. A complete analysis of the interaction between the power efficiency, area, and frequency have been presented. The proposed negative charge
more » ... ed negative charge pump is designed to deliver 40μA with a widesupply range from 2.5V to 5.5V using 0.18μm high voltage LDMOS technology.
doi:10.29292/jics.v10i3.418 fatcat:njeitwtqebfs5fcwyc4y6tnhaa