Switching circuit and method of manufacturing switching circuit
US10601417B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 18, 2019 |
| Grant date | Mar 24, 2020 |
| Priority date | — |
| Expiry date | Jun 18, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05K2201/093
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A switching circuit includes a printed circuit board that supports a switching element, a positive power supply circuit, a negative power supply circuit and a driving circuit thereon. The positive power supply circuit generates a positive voltage relative to a GND potential. The negative power supply circuit generates a negative voltage relative to the GND potential. The driving circuit supplies the gate electrode with the positive voltage and the negative voltage when turn on and off the switching element, respectively. The printed circuit board includes wiring as a conducting path extended from the negative power supply circuit to the gate electrode via the driving circuit. The conducting path includes a negative power supply wiring between the negative power supply circuit and the driving circuit. The negative power supply wiring at least partially includes a negative power supply solid pattern.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.