| 摘要 |
In a charge pump system, the frequency of an oscillator is based on the output signals from a plurality of differential amplifiers. Each differential amplifier receives a different reference voltage as well as a common input voltage derived from the pumped voltage. A predetermined logic signal output by the differential amplifiers modifies, i.e. reduces, an original frequency of the oscillator. In this manner, the charge pump system quickly compensates for any overshoot in the pumped voltage in a manner directly correlated to the magnitude of the pumped voltage. If no differential amplifiers output the predetermined logic signal, then the oscillator generates the original frequency. In this manner, the charge pump system also compensates for any undershoot in the pumped voltage by providing the fastest frequency.
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