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In this paper, we present a charge pump structure based on an improved charge transfer scheme. The charge transfer scheme is analyzed, providing a theoretical discussion that shows the fundamental idea upon which the proposed approach is based. The proposed transfer scheme was implemented in a cross-coupled charge pump that was designed and simulated in a 0.35-µm CMOS technology. Simulation results...
Silicon area occupation is a key factor to be minimized when designing integrated charge pumps. In this paper, we propose a method for designing linear charge pumps with minimum area. Starting from the electrical design specifications (i.e. the minimum output voltage that the charge pump must provide for a given maximum output current), we derive a relation between the operating frequency and the...
This paper presents an analysis of the achievable voltage gain in integrated Fibonacci-like charge pumps. The analysis is carried out by using a mathematical model based on a matrix description of the network which takes parasitic capacitances into account. The impact of top- and bottom-plate parasitics over the voltage gain is discussed and the analytical expression of the voltage gain as a function...
This paper presents an analytical and experimental evaluation of the output resistance of Dickson charge pumps. This work is conceived to obtain an accurate estimation of the parameters affecting the charge pump output resistance, with particular attention to the capacitance connected to the output node of the circuit. The aim is to evaluate the impact of this element over charge pump performance...
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