| 摘要 |
This invention relates to a circuitry connectable to a charge pump for reducing leakage current associated with said charge pump. The invention is based on the idea that the voltage in the node from which a charge pump load is charged or discharged is measured. The measuring device measures the potential of the node. When the charge pump is disconnected from the load, the measuring device drives its output to the same potential as its input. By employing this technique, a leakage current that in the prior art structure is driven via the node into the first switch because of a voltage drop on the switch input is reduced. The measuring device will force its output to the same potential as its input, and the corresponding leakage current is now produced and driven by the measuring device output instead. Thus, no leakage current is driven via the node. |
