| 摘要 |
A two-phase integrated circuit charge pump is described. The charge pump has two bootable pump capacitors for driving the source of two output transistors. To maximize the pump supply voltage provided by the drain of the output transistors, the gate voltages are driven by a pair of charge sharing capacitors. A delay element is provided which delays the booting of one of the charge sharing capacitors until the other is booted and its charge is shared with the first capacitor. A sufficient output transistor gate voltage, therefore, is provided during one phase to supply the maximum available pump voltage.
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