Method of efficiently performing fractional voltage conversion and system comprising efficient fractional voltage converter circuitry

摘要

Embodiments provide a capacitive voltage multiplier for efficiently producing multiples, including fractional multiples, of a power supply voltage use high, medium and low voltage field effect transistors for switching terminals of various capacitors into and out of connection with power supply or ground voltages in charge mode and with an output or other capacitor terminals for series connection in pump mode. A single non-overlapping clock is level-shifted up to the maximum voltage level required for switching to produce a desired output, then level shifted back down to lower levels with delay added as necessary according to embodiments.