This is a two-part series paper. In this first part of the novel paper, nine uncompensated transfer functions from second (2nd) order upto tenth (10th) order of a solar boost converter which boosts 25V of 255W solar panel to  upto 350VDC. The aim of the study is to see what changes in coefficients of polynomials happen from second (2nd) order upto tenth (10th)  when the switching frequency is changed from 100 kHz to  1.999 MHz or 1999 kHz. The aim of this paper is transfer functions, not circuits. The graphs/plots showing the voltages level achieved during the change of MOSFET switching frequency from 100 kHz to 1.999 MHz are submitted. The results are used in designing compensator and improving patent -  novel B, which is explored in Part-II.