| 摘要 |
A method and apparatus is disclosed for minimizing leakage current through a storage switch and improving the off state isolation of the switch from high frequency input fluctuations. Two separate charge stores, a help store and a storage store, are provided which are charged simultaneously when charge is to be stored in the storage switch. The charge stores are maintained on either side of a control switch. The charge differential across the control switch is therefore minimized, minimizing the leakage current from the storage store. Further, switch isolation is improved by the formation of a cascaded capacitive voltage divider from the combination of the help switch and help store and the storage switch and storage store.
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