The paper describes variable circuits technique the enable of differential circuit of charge pump. It is able to pump an input voltage of 2V to measure several output voltage through several clock signal with each pumping capacitor of 1 pF and smoothing capacitor of 1 pF at the output. From the simulation result, it is evident that charge pump circuits offer verity high voltage pumping gain. The circuits which are implemented in this paper is simulated with LT SPICE tool of computer.

Abstract
 1. 서론
 2. 충전 펌프 구조와 동작
  2.1 배 전압 충전펌프 구조
  2.2 디킨손 충전 펌프의 구조와 동작
  2.3 정적 충전 펌프 회로
  2.4 동적 충전 펌프회로
 3. 시스템 회로설계와 시뮬레이션
  3.1 디킨손 회로가 높은 전압을 갖는 출력
  3.2 정적충전펌프 회로가 높은 전압을 갖을 때 출력
  3.3 동적 충전펌프회로가 높은 전압을 갖을 때 출력
  3.4 각 충전펌프 비교
 4. 결론
 참고문헌

• 권승탁(서남대학교 컴퓨터정보학과) | Seungtag Kwon
• 이계철(군장대학교 자동차기계계열) | Kyecheul Lee