Electronic Science and Technology ›› 2020, Vol. 33 ›› Issue (11): 55-58.doi: 10.16180/j.cnki.issn1007-7820.2020.11.011

Previous Articles     Next Articles

Research of Fast Determination Method of On-chip Band-gap Voltage Reference

ZHENG Xuan1,LI Chunjiang1,ZHANG Shuping2,LI Xiao1   

  1. 1. Beijing Institute of Control Engineering,Beijing 100190,China
    2. Beijing Huahang Radio Measurement & Research Institute,Beijing 100013,China
  • Received:2019-08-15 Online:2020-11-15 Published:2020-11-27
  • Supported by:
    Military Comission Equipment Development of China(41424040204)


The deviation of the output characteristics of the on-chip bandgap reference causes an error of 0~0.3 V on the output of the power module on the integrated circuit. To investigate the causes of the on-chip power module error, an peripheral circuit design scheme with adjustable output bandgap reference voltage is proposed to realize the accurate output of the on-chip power supply module, and the method of determining the circuit parameters is studied. The circuit accurately adjusts the output of the power module by performing parameter correction on the on-chip bandgap reference voltage source. The mathematical model is established according to the principle of equal current, and the output data of two sets of fixed parameter power modules are measured, and the parameters are quickly determined by substituting the model calculation. The actual test data proves that the circuit can achieve accurate output of the on-chip power module with an error of only ±0.02 V, which meets the requirements of practical applications.

Key words: on chip, band-gap voltage reference, peripheral circuit, mathematical model, fast determination method, error analysis

CLC Number: 

  • TN06