Piezoelectric power converter
US8493750B2 · kind B2 · utility
Assignees
Inventor
Key dates
| Filing date | Oct 13, 2009 |
| Grant date | Jul 23, 2013 |
| Priority date | — |
| Expiry date | Nov 16, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02M3/33571
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Disclosed is a piezoelectric power supply converter, wherein, a piezoelectric element is utilized to replace a conventional capacitor, due to characteristic of mechanical resonance of said piezoelectric element, said piezoelectric element may contain higher capacitance than said conventional capacitor, and a parasitic resistance of said piezoelectric element is smaller that that of an ordinary capacitor. Through a resonance between an externally added inductive element and a piezoelectric-capacitor and said resonance of said piezoelectric element itself, said piezoelectric element is capable of transmitting electrical energy efficiently, thus achieving large output power. Therefore, said piezoelectric-capacitor is capable of improving shortcomings of said conventional capacitors of low voltage endurance, large leakage current, and small output power.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.