CMOS電荷幫浦升壓轉換器之設計與實作

CMOS電荷幫浦升壓轉換器，擁有電路簡單低成本，將低輸入電壓源轉換成高輸出電壓源之特性，已成多數混合訊號積體電路中電源管理模組之一有效方式，爲更進一步提升整體效率；本文針對組成一CMOS電荷幫浦升壓轉換器之架構單元：參考電壓源、誤差放大器、比較器、緩衝器、核心電荷幫浦升壓電路及分壓回授電路之設計加以分析討論，最後利用TSMC 0.35um 2P4M製程技術模擬，設計完成一晶片面積爲0.984×0.984平方公厘，功率消耗約12.9mw，供應電壓可從1.6V至2V，最大輸出負載電流10mA，輸出參考電壓可穩定在3V之電荷幫浦升壓電路。

關鍵字

電荷幫浦；比較器；緩衝器；單增益頻寬

並列摘要

A CMOS charge pump boost converter with simple circuit structure and low cost has become a compact power supply for the power management of the most mixed-signal integrated circuits. To improve the power conversions efficiently, in this paper, the main components within charge pump boost converter consist of the reference voltage source, error (OP) amplifier, comparator, buffer, the core charge pump circuit and divider feedback circuit are analyzed and discussed in detail. The CMOS charge pump boost converter has been fabricated with a standard TSMC 0.35 um 2P4M process. Experimental results show that the chip area is 0.984×0.984 mm^2, power dissipation about 12.9 mW, can operate with input supply voltage from 1.6V to 2V, can provide 10 mA maximum load current, and output voltage regulated at 3V.

並列關鍵字

Charge Pump ； Comparator ； Buffer ； Unity Gain Bandwidth

參考文獻

Gregoire, Robert B.(2006).A Compact Switched Capacitor Regulated Charge Pump Power Supply.IEEE J. Solid-State Circuit.41(8),1944-1953.

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Gregoire, Robert B.(2005).A Switched Capacitor Regulated Charge Pump Power Supplu.IEEE, CUSTOM INTEGRATED CIRCUITS CONFERENCE.(IEEE, CUSTOM INTEGRATED CIRCUITS CONFERENCE).

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