The results of experimental and theoretical studies of the operation of transformerless voltage dividers with transistor-diode commutation of switchable capacitors for microelectromechanical systems are presented. The analysis of the divider features during operation with a constantly connected or periodically connected voltage source V0 with unlimited power is carried out. It has been found that the efficiency of the divider during operation from a permanently connected primary voltage source V0 with unlimited power is very small, but during the operation from this source connected periodically, it can reach 60%. It has been found that for the circuits with transistor-diode commutation of capacitors the stabilizing effect is much stronger than for circuits with diode switching of capacitors.
Valery Dragunov (2025) studied this question.