Company Filing History:

9 out of 25,721

Telefonaktiebolaget Lm Ericsson (publ)

Optis Wireless Technology, LLC

patents

Years Active: 2011-2024

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13 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 11967905 - Non-isolated pulse width modulated (PWM) full bridge power converter with interconnected windings (2024-04-23),

2. 11004591 - Multilayer transformer structure comprising multiple rectification elements (2021-05-11),

3. 10650946 - Trimming method of DCR sensing circuits (2020-05-12),

4. 9971315 - Electronic circuit with a current ripple filter (2018-05-15),

5. 9559601 - Forward-flyback topology switched mode power supply (2017-01-31),

6. 9444347 - Switched mode power supply with a simplified start-up supply (2016-09-13),

7. 9391504 - Control of transformer flux density in an isolated switched mode power supply (2016-07-12),

8. 9214804 - Overload detection in a switched mode power supply (2015-12-15),

9. 9088212 - Synchronous non-isolated push-pull converter (2015-07-21),

10. 8964416 - Switched mode power supply with voltage regulator (2015-02-24),

11. 8699246 - Switch mode converter and a method of starting a switch mode converter (2014-04-15),

12. 8300432 - Power converter utilizing a RC circuit to conduct during the rising edge of the transformer voltage (2012-10-30),

13. 7884585 - Pre-biased circuit for synchronous rectified power converters (2011-02-08),

Title: Mikael Appelberg: Innovator in Power Conversion Technology

Introduction

Mikael Appelberg is a prominent inventor based in Göteborg, Sweden. He holds a total of 13 patents that showcase his expertise in power conversion technology. His innovative contributions have significantly impacted the field, particularly in the design and functionality of transformers and power converters.

Latest Patents

Among his latest patents is a "Non-isolated pulse width modulated (PWM) full bridge power converter with interconnected windings." This apparatus features a first circuit path that includes a series combination of a primary winding of a transformer and a first secondary winding. Additionally, it has a second circuit path that includes a second secondary winding of the transformer. The primary winding is magnetically coupled to both secondary windings, allowing it to generate a portion of the output current based on the energy received. The second secondary winding is designed to generate the remaining portion of the output current.

Another notable patent is the "Multilayer transformer structure comprising multiple rectification elements." This power conversion circuit utilizes a multilayer transformer and several rectifying transistors connected to the secondary windings. The multilayer transformer is constructed within a PCB stack, where the primary and secondary winding conductors are vertically aligned. This innovative design ensures that the entirety of the secondary current flows in alignment with the primary current, enhancing efficiency.

Career Highlights

Mikael has worked with several notable companies throughout his career, including Telefonaktiebolaget LM Ericsson and Flex Ltd. His experience in these organizations has allowed him to refine his skills and contribute to significant advancements in power conversion technologies.

Collaborations

Mikael has collaborated with talented individuals such as Oscar Persson and Magnus Karlsson. Their combined expertise has fostered an environment of innovation and creativity in their projects.

Conclusion

Mikael Appelberg is a distinguished inventor whose work in power conversion technology has led to numerous patents and advancements in the field. His innovative designs and collaborations continue to influence the industry, making him a key figure in the realm of electrical engineering.

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