Method of increasing an internal operating voltage for an integrated circuit, and integrated circuit
US6870420B2 · kind B2 · utility
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21Claims
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Key dates
| Filing date | May 5, 2003 |
| Grant date | Mar 22, 2005 |
| Priority date | — |
| Expiry date | May 5, 2023 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02M3/07
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An increased internal operating voltage for an integrated circuit can be generated with two two-stage charge pumps, ensuring reliable operation even in the event of an external voltage supply Vext=1.8 V or less. The two charge pumps cooperate with a common first stage in a cyclic sequence. A temporally offset organization of the cycles of the two charge pumps enables operation in a manner that is free from disturbances. Moreover, the large chip area required for capacitors can advantageously be considerably reduced.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.