Sungrow Power Supply has filed a patent for a transformer design aimed at improving electric field distribution and high-voltage insulation performance. The transformer includes an iron core, body windings, and a semi-conductive layer connected to auxiliary circuits for achieving balanced electric field distribution without damaging insulation. GlobalData’s report on Sungrow Power Supply gives a 360-degree view of the company including its patenting strategy. Buy the report here.
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According to GlobalData’s company profile on Sungrow Power Supply, Smart energy mgmt systems was a key innovation area identified from patents. Sungrow Power Supply's grant share as of January 2024 was 65%. Grant share is based on the ratio of number of grants to total number of patents.
Transformer with improved electric field distribution and high-voltage insulation
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A recently filed patent (Publication Number: US20240021358A1) discloses a transformer design that includes an iron core, a body winding, and a semi-conductive layer. The body winding is placed on a core column of the iron core, with the semi-conductive layer arranged correspondingly. An auxiliary circuit provides an equipotential connection point for the semi-conductive layer, ensuring equal potential with a preset position of the body winding. The patent further details variations in the auxiliary circuit, including the use of an auxiliary winding or a converter connected to the transformer to establish the equipotential connection point.
Moreover, the patent extends to an isolation converter comprising a first converter, a second converter, and the aforementioned transformer. The first converter is linked to a body winding on the primary side of the transformer, while the second converter connects to a body winding on the secondary side. The design emphasizes minimizing capacitive current in the semi-conductive layer, with the auxiliary circuit playing a crucial role in achieving this objective. Additionally, the inclusion of a capacitive current suppression circuit in the transformer further enhances its efficiency by mitigating potential issues related to capacitive currents. These innovative features highlight the potential for improved performance and reliability in transformer and isolation converter applications.
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GlobalData Patent Analytics tracks bibliographic data, legal events data, point in time patent ownerships, and backward and forward citations from global patenting offices. Textual analysis and official patent classifications are used to group patents into key thematic areas and link them to specific companies across the world’s largest industries.
