| 摘要 |
An improvement in initializing a charge pump circuit. After a charge pump circuit is turned off, the relatively high voltages in its nodes are discharged (initialized) to prevent electrical stress and eventual component failure. The transistors used to discharge these nodes receive a control signal of the same polarity as the voltage being discharged. When the charge pump is generating a negative voltage, the output of the final stage of the pump can be used to provide this negative control signal to discharge the negative voltages from the internal nodes. A delayed second signal can be used to discharge the final stage.
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