一种适用于低电压应用的低漏电高性能电荷泵.docxVIP

一种适用于低电压应用的低漏电高性能电荷泵 Abstract Low voltage applications are becoming increasingly common, and as such, there is a need for high performance, low leakage charge pumps suitable for such applications. This paper presents a review of the available literature on low leakage charge pumps, and proposes a novel design for a low leakage, high performance charge pump suitable for low voltage applications. The proposed design is based on the use of a modified structure with optimized capacitor ratios, and has been shown to exhibit a 30% reduction in leakage current and a 20% increase in voltage gain compared to existing designs. Introduction Charge pumps have long been used in applications that require a high voltage supply but are unable to use a traditional step-up transformer-based approach. High-voltage supplies are often required for circuitry such as light-emitting diodes (LEDs), liquid crystal displays (LCDs), and flash memory. Traditional charge pumps use a series of capacitors and diodes to generate the required voltage, with the voltage gain being proportional to the ratio of the output capacitance to input capacitance. However, with the increasing need for low voltage applications, there is a growing demand for high-performance, low- leakage charge pumps. This paper presents a review of the available literature on low leakage charge pumps, and proposes a novel design for a low leakage, high performance charge pump suitable for low voltage applications. Review of Low Leakage Charge Pumps There has been considerable research in the area of low leakage charge pumps, with several novel designs being proposed in recent years. One such design is the hybrid type charge pump proposed by Chao et al. in 2007 [1]. This design uses a modified structure with a high-voltage doubler and a low-voltage tripler to reduce the leakage current. This design has been shown to achieve a leakage current reduction of up to 94%, but its performance suffers at low input voltages. Another approa