Power Integrations had 17 patents in future of work during Q1 2024. Power Integrations Inc’s patents filed in Q1 2024 focus on power converters with damping circuits to dissipate energy from resonant ringing, and controllers with primary and secondary controllers to control switching of power and supplemental switches. The ZV drive circuit generates a ZVS signal to enable a ZV switch to store energy in the energy transfer element, reducing switch voltage across the power switch before the next ON section of the primary drive signal. GlobalData’s report on Power Integrations gives a 360-degree view of the company including its patenting strategy. Buy the report here.
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Power Integrations grant share with future of work as a theme is 52% in Q1 2024. Grant share is based on the ratio of number of grants to total number of patents.
Recent Patents
Application: Selective damping of ringing in a power converter (Patent ID: US20240030809A1)
The patent filed by Power Integrations Inc. describes a power converter with a damping circuit designed to dissipate energy from resonant ringing caused by the magnetic inductance of the energy transfer element and switch capacitance during discontinuous conduction mode. The power converter includes an energy transfer element with primary and secondary windings, a primary switch with a switch capacitance, a dissipative element, and a secondary controller with a secondary switch and a damping circuit. The damping circuit generates a damping current when both primary and secondary switches are non-conductive, allowing the dissipative element to dissipate the energy from the resonant ringing.
The damping circuit in the power converter is activated based on the voltage comparison between the forward voltage node and the output voltage node, with a forward voltage detector circuit, timing circuit, and damping drive circuit working together to produce a damping enable signal. Additionally, the method described in the patent involves detecting the discontinuous conduction mode, comparing voltages on the secondary winding and output voltage, generating a damping current, and dissipating energy to dampen the ring in the energy transfer element. The damping current is produced when the voltage on the secondary winding exceeds the output voltage of the energy transfer element, effectively reducing the resonant ringing in the power converter.
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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.
