Voltage peak detection circuit and detection method
US9488680B2 · kind B2 · utility
29Cited by
3References
13Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 6, 2014 |
| Grant date | Nov 8, 2016 |
| Priority date | — |
| Expiry date | Aug 10, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02M1/0022
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
In one embodiment, a voltage peak detection circuit can include: (i) a voltage coupling circuit configured to inductively couple an input inductor voltage of a switching power supply, and to generate a first voltage that represents a DC input voltage of the switching power supply; (ii) a voltage conversion circuit configured to receive the first voltage, and to generate a second voltage that is proportional to the first voltage; and (iii) a holding circuit configured to hold a peak of the second voltage to generate a peak voltage signal that represents peak information of the DC input voltage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.