VOLTAGE GENERATORS AND SYSTEMS

摘要

In one example, a voltage generator includes a plurality of voltage pumps, a voltage detection circuit, an oscillator, and a control circuit. The plurality of voltage pumps are configured to perform voltage pumping operations in a sequence and output a pumping voltage. The voltage detection circuit is configured to detect a voltage level of the pumping voltage and output a detection signal. The control circuit is configured to output, in response to the detection signal, a plurality of divided oscillator signals based on an oscillator signal of the oscillator, to enable a different one of the voltage pumps to begin each sequence of voltage pumping operations each time the pumping voltage is less than a threshold voltage.

主权项

1. A voltage generator, comprising:
a plurality of voltage pumps configured to perform voltage pumping operations in a sequence and output a pumping voltage; a voltage detection circuit configured to output a detection signal each time the pumping voltage is less than a threshold voltage; an oscillator configured to generate an oscillator signal; and a control circuit configured to output, in response to the detection signal, a plurality of divided oscillator signals based on the oscillator signal, to enable a different one of the plurality of voltage pumps to begin each sequence of voltage pumping operations.