Voltage booster circuit
AssigneeHynix Semiconductor Inc.
InventorJun-Hyun Chun
Life of this patent
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Abstract
The present invention provides a voltage booster circuit for effectively supplying a boosted voltage of a stable level despite of small area. The voltage booster circuit of the present invention includes: an oscillator for generating a basic pulse signal; a phase divider for dividing a frequency of the basic pulse signal to output a plurality of pulse signals having predetermined phase difference; a first to a fourth charge pumps for outputting a boosted voltage in response to a correspondent pulse signal among the plurality of pulse signals; and a drive controller for controlling the oscillator to maintain the boosted voltage to have a desired level.
Claims9
A voltage booster circuit comprising:
- an oscillation means for generating a basic pulse signal;
- a phase division means for dividing a frequency of the basic pulse signal to output a plurality of pulse signals having predetermined phase difference;
- a first to a fourth charge pumping means for outputting a boosted voltage in response to a correspondent pulse signal among the plurality of pulse signals;
- and
- a drive control means for controlling the oscillation means to maintain the boosted voltage to have a desired level.
A voltage booster circuit comprising:
- an oscillation means for generating a basic pulse signal;
- a phase division means for generating a pulse signal by dividing a frequency of the basic pulse signal;
- a charge pumping means for outputting a boosted voltage in response to the pulse signal;
- and
- a drive control means for controlling the oscillation means to maintain the boosted voltage to have a desired level.
Dependencies are inferred from the claim text.