Printed circuit board, power supply apparatus, image forming apparatus, and printed circuit board manufacturing method
US9918393B2 · kind B2 · utility
0Cited by
9References
26Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 15, 2012 |
| Grant date | Mar 13, 2018 |
| Priority date | — |
| Expiry date | May 8, 2034 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/42
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A piezoelectric transformer includes a piezoelectric element. Two primary side electrodes exist on the primary side of the piezoelectric element. The primary side electrodes are coupled by a resistor formed from a conductive coating. A discharge current is discharged via the resistor to protect a semiconductor component from the discharge current. Since neither a short-circuit terminal nor conductive jig is required, electrostatic discharge damage to a semiconductor component can be prevented by a low-cost arrangement.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.