Positive feedback resonant transducer circuit
US6246153A · kind A · utility
16Cited by
5References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 14, 2000 |
| Grant date | Jun 12, 2001 |
| Priority date | — |
| Expiry date | Feb 14, 2020 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB06B2201/55
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A circuit including a transformer, preferably a laminated piezoelectric transducer, in combination with a positive feedback amplifier circuit, capable of serving: 1) to produce either an audible or ultrasonic signal; or 2) as an energy source capable of driving an auxiliary high voltage device with an initial and continuing low voltage source such as a battery.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.