Patent ID: 6198340
Filing Date: 2001-03-06
Classification: H02M

Abstract:
A voltage pump circuit, comprising:a) a clock with a first half clock period and a second half clock period controlling a booster circuit,b) said booster circuit driven by two clocked boost signals to produce a first boosted voltage during said first half clock period and a second boosted voltage during said second half clock period,c) said first boosted voltage connected to a first plurality of pass gate transistors comprising at least one N-channel transistor and one P-channel transistor connected in parallel between said first boosted voltage and pump circuit output,d) said second boosted voltage connected to a second plurality of pass gate transistors comprising at least one N-channel transistor and one P-channel transistor connected in parallel between said second boosted voltage and pump circuit output,e) said first plurality of pass gate transistors controlled to produce a high conductance during said first half clock period to conduct charge current from said first boosted voltage to output of pump circuit,f) said second plurality of pass gate transistors controlled to produce a high conductance during said second half clock period to conduct charge current from said second boosted voltages to said output of said pump circuit.