CAJ | 학술논문

为了防止亚谐波振荡以及提高系统的稳定性和带载能力,设计了一种伞区间分段线性斜坡补偿电路.与传统的设计方法相比,该电路在-40～85℃下提供的补偿信号在不同的占空比区间内具有不同的斜率,对三个占空比区间进行分段线性斜坡补偿,有效减小了斜坡补偿对系统带载能力、瞬态响应的负面影响,极大地改善了系统的稳定性和带载能力.采用此电路的一款电流模PWM升压型DC-DC已在UMC 0.6μm-BCD工艺线投片,测试结果证明分段线性斜坡补偿电路性能良好,带载能力提高了20%.分段线性斜坡补偿电路芯片面积为0.01mm2,静态电流消耗仅为8μA,芯片效率高达93%.
위료방지아해파진탕이급제고계통적은정성화대재능력,설계료일충산구간분단선성사파보상전로.여전통적설계방법상비,해전로재-40～85℃하제공적보상신호재불동적점공비구간내구유불동적사솔,대삼개점공비구간진행분단선성사파보상,유효감소료사파보상대계통대재능력、순태향응적부면영향,겁대지개선료계통적은정성화대재능력.채용차전로적일관전류모PWM승압형DC-DC이재UMC 0.6μm-BCD공예선투편,측시결과증명분단선성사파보상전로성능량호,대재능력제고료20%.분단선성사파보상전로심편면적위0.01mm2,정태전류소모부위8μA,심편효솔고체93%.
To prevent sub-harmonic oscillation and improve the stability and load capacity of the system,a piecewise linear slope compensation circuit is designed. Compared with the traditional design, this circuit provides a compensation signal whose slope varies from different duty cycles at -40～85℃ ,and reduces the negative effect of slope compensation on the system's load capacity and transient response. A current mode PWM Boost DC-DC converter employing this slope com-pensation circuit is implemented in a UMC 0.6μm-BCD process. The results indicate that the circuit works well and effec-tively,and the load capacity is increased by 20%. The chip area of the piecewise linear slope compensation circuit is 0.01mm2 ,which consumes only 8μA quiescent current,and the efficiency ranges up to 93%.