Power regulation scheme for a high voltage output in integrated circuit devices
US7808300B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 8, 2005 |
| Grant date | Oct 5, 2010 |
| Priority date | — |
| Expiry date | Mar 8, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02M3/073
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A power regulation scheme for high voltage output in integrated circuits is realized in a regulated high voltage generator, a voltage clamp, and a power regulator connected between the voltage clamp and the voltage generator. The voltage clamp produces a clamp current during a voltage limiting operation. A regulating clamp current corresponds to an initial limit voltage of the clamp. The power regulator senses the clamp current and suspends voltage generation as the limit magnitude of clamp current is attained. The clamp current is mirrored in a current comparator circuit that triggers a stop signal to the regulated high voltage generator, thus saving power.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.