High power DC SSPC with capability of soft turn-on large capacitive loads
US8716997B2 · kind B2 · utility
8Cited by
9References
9Claims
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Key dates
| Filing date | Jun 16, 2010 |
| Grant date | May 6, 2014 |
| Priority date | — |
| Expiry date | Jun 16, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02H9/001
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Pre-charge circuitry allows capacitive loads connected to a solid state power controller to be gradually charged up by a PWM, generated with a cycle by cycle current limit, switching a single MOSFET in series with an inductor, before the SSPC is turned on. The pre-charge circuitry may require only three additional components, e.g., a MOSFET, an inductor and a diode, along with a designated MOSFET gate driver.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.