In order to solve of the problem of larger errors in the calculation of resistance parameters for existing Widlar micro current source, an error correction method based on Laguerre polynomial curve-fitting is studied, and the recursive calculation of the model parameters for the fitted curve was implemented by using the recursive least squares (RLS) so as to make the fitted curve fit the nonlinear characteristics of the Widlar micro current source with high precision. The research results show that the proposed method has high calculation precision of resistance parameter, and the maximum rela...
