Low-jitter charge pump with radiation resistance characteristics

• Main Authors: WEI HONGTAO, YUAN HENGZHOU, GUO QIANCHENG, LI SHOUPING, GUO YANG, LIANG BIN, CHEN JIANJUN, CHI YAQING, HU CHUNMEI, TAN JIAWEI, CHEN XI
• Format: Patent
• Language: Chinese; English
• Published: 13.06.2017
• Subjects: APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC,OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWERSUPPLY SYSTEMS; CONTROL OR REGULATION THEREOF; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUTPOWER; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; ELECTRICITY; GENERATION

The invention discloses a low-jitter charge pump with radiation resistance characteristics. The low-jitter charge pump comprises a current mirror unit, a differential circuit unit and a push-pull amplifier, wherein input current I passes through the current mirror unit and generates bias current Iss1 and Iss2; meanwhile, an input end of the current mirror unit is connected with the input end of the push-pull amplifier and negative feedback is formed through the push-pull amplifier; and the differential circuit unit is provided with stable bias current. The low-jitter charge pump has the advantages of being simple in structure, low in cost, easy to implement and good in effect. 本发明公开了种具有抗辐照特性的低抖动电荷泵，包括电流镜单元、差分电路单元和推挽放大器，输入电流I通过所述电流镜单元产生偏置电流Iss1、Iss2，同时所述电流镜单元的输入端与所述推挽放大器的输入相连，经推挽放大器构成负反馈，为所述差分电路单元提供稳定的偏置电流。本发明具有结构简单、成本低廉、易实现、效果好等优点。