System corrected programmable integrated circuit
US8314515B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 1, 2009 |
| Grant date | Nov 20, 2012 |
| Priority date | — |
| Expiry date | Sep 20, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05F1/46
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A system corrected programmable integrated circuit is applied to a power supply and includes a comparator unit, a digital output unit and a programming unit. The comparator unit includes an external feedback voltage input end and a reference voltage input end for inputting a feedback voltage and a reference voltage respectively, such that when the feedback voltage equals the reference voltage, the comparator unit transmits a control signal to the digital output unit. When receiving the control signal, the digital output unit stops outputting the reference voltage and the current reference voltage is recorded as a programming voltage for outputting to the programming unit. When receiving the programming voltage, the programming unit programs the programming voltage and transmits the voltage to the reference voltage input end. Accordingly, the present invention automatically detects and compensates a system error to reduce external element, yet still achieving a qualified range of product specification.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.