{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9853838","patent":{"patent_number":"US-9853838","title":"PoDL system with active dV/dt and dI/dt control","assignee":null,"inventors":[],"filing_date":"2015-05-14T00:00:00.000Z","publication_date":"2017-12-26T00:00:00.000Z","cpc_codes":["H04L","H02M","H02M","H04L","H04L","H02M"],"num_claims":20,"abstract":"A Power Over Data Lines (PoDL) system includes Power Sourcing Equipment (PSE) supplying DC power and differential Ethernet data over a single twisted wire pair to a Powered Device (PD). Due to start-up perturbations, PD load current variations, and other causes, dV/dt noise is introduced in the power signal. Such noise may be misinterpreted as data unless mitigated somehow. Rather than increasing the values of the passive filtering components conventionally used for decoupling/coupling the power and data from/to the wire pair, active circuitry is provided in the PSE, PD, or both to limit dV/dt in the power signal. Such circuitry may be implemented on the same chip as the PSE controller or PD controller. Therefore, the sizes of the passive components in the decoupling/coupling networks may be reduced."},"analysis":{"summary":"The Podl System with Active Dv/dt and Di/dt Control patent addresses the problem of noise interference in Power Over Data Lines (PoDL) systems. The core innovation lies in using active circuitry within the Power Sourcing Equipment (PSE) and/or Powered Device (PD) to actively control the rate of voltage change (dV/dt) and the rate of current change (dI/dt) in the power signal. This approach minimizes the reliance on bulky passive filtering components traditionally used for decoupling power and data, which add cost and complexity. \n\nThe problem being solved is the misinterpretation of dV/dt noise as data, leading to errors and unreliable communication in PoDL systems. The key technical approach involves integrating active circuitry on the same chip as the PSE or PD controller, enabling real-time control of voltage and current changes. This active control significantly reduces noise and improves data reliability. \n\nThe business value lies in the potential for more compact, efficient, and cost-effective PoDL systems. By reducing the size and cost of passive components, this technology can lower the overall cost of PoDL implementations. Furthermore, the improved data reliability enhances the performance of PoDL-based applications. The market opportunity is substantial, as PoDL systems are increasingly used in various industries, including industrial automation, automotive systems, and building automation, where reliable power and data transmission are crucial. This technology represents a significant advancement in PoDL, paving the way for wider adoption and new applications.","layman_explanation":"The Podl System with Active Dv/dt and Di/dt Control addresses a common problem in systems that transmit both power and data over the same wire, known as Power Over Data Lines (PoDL). These systems are increasingly used to simplify cabling and reduce costs, but they can be susceptible to noise interference that degrades data transmission. Here’s a breakdown of the problem, the solution, and why it matters.\n\n**1. What Problem Does This Solve?**\nPoDL systems face a challenge: the power signal can create electrical noise that interferes with the data signal. This noise, caused by rapid changes in voltage or current, can be misinterpreted as data, leading to errors and unreliable communication. Existing solutions often rely on bulky filters to block this noise, which adds to the cost and complexity of the system.\n\n**2. How Does It Work?**\nThis invention offers a more elegant solution: instead of passively filtering out the noise, it actively controls the rate of voltage and current changes. Imagine it like this: instead of trying to catch all the raindrops after a storm, you control the storm itself to prevent it from raining too hard. The system uses active circuitry to smooth out the power signal, preventing rapid changes that cause noise. This active control is implemented on the same chip as the system's controller, making it a compact and efficient solution.\n\n**3. Why Does This Matter?**\nThis technology has several important benefits. First, it reduces the need for bulky filters, leading to smaller and cheaper PoDL systems. Second, it improves the reliability of data transmission by minimizing noise interference. Third, it simplifies the design process. The market impact is significant, as PoDL systems are used in various industries, including automotive, industrial automation, and building management. By improving the performance and reducing the cost of PoDL, this technology can enable new applications and drive wider adoption.\n\n**4. What's Next?**\nFuture applications could include more advanced industrial control systems, more efficient building automation, and improved in-vehicle communication networks. The market adoption timeline will depend on the integration of this technology into existing PoDL standards and the development of new PoDL-based products. From an investment perspective, this technology presents an opportunity to capitalize on the growing demand for efficient and reliable power and data transmission solutions.","technical_analysis":"The Podl System with Active Dv/dt and Di/dt Control patent presents a novel technical approach to mitigating noise in Power Over Data Lines (PoDL) systems. The core technical architecture involves the integration of active circuitry within the Power Sourcing Equipment (PSE) and/or Powered Device (PD) to actively control the rate of voltage change (dV/dt) and the rate of current change (dI/dt) in the power signal. This active control loop replaces or supplements traditional passive filtering techniques.\n\nThe implementation details involve sophisticated control algorithms that monitor the voltage and current waveforms and adjust the active circuitry to minimize dV/dt and dI/dt. These algorithms may incorporate feedback loops to ensure stability and optimize performance under varying load conditions. The integration of this active circuitry on the same chip as the PSE or PD controller presents both opportunities and challenges. It allows for tight integration and real-time control but also requires careful consideration of power dissipation and thermal management.\n\nThe performance characteristics of the Podl System with Active Dv/dt and Di/dt Control are expected to be superior to traditional passive filtering techniques, particularly in scenarios with rapidly changing load conditions. The active control loop can adapt to these changes more quickly and effectively than passive filters, resulting in improved noise mitigation and data reliability. Code-level implications involve the development of firmware and software to implement the control algorithms and manage the active circuitry. This requires expertise in embedded systems programming and control theory.\n\nIntegration patterns involve the seamless incorporation of the active circuitry into existing PoDL standards and protocols. This requires careful consideration of compatibility and interoperability issues. The technical implications of this patent are significant, as it paves the way for more compact, efficient, and reliable PoDL systems. This technology has the potential to revolutionize various industries that rely on PoDL, such as industrial automation, automotive systems, and building automation.","business_analysis":"The Podl System with Active Dv/dt and Di/dt Control patent holds significant business implications for the Power Over Data Lines (PoDL) market. The core value proposition of this innovation is the reduction of noise interference in PoDL systems through active control of dV/dt and dI/dt, leading to improved data reliability and system performance.\n\nThe market opportunity size for PoDL is substantial and growing, driven by the increasing demand for interconnected devices in various industries, including industrial automation, automotive systems, and building automation. This technology offers a competitive advantage by providing a more efficient and cost-effective solution for noise mitigation compared to traditional passive filtering techniques. The reduced component size and simplified design translate into lower manufacturing costs and improved system integration.\n\nThe revenue potential for this technology is significant, as it can be licensed to manufacturers of PSE and PD equipment. Business models could include licensing fees, royalties, and joint development agreements. The strategic positioning of this technology is strong, as it addresses a critical challenge in PoDL systems and offers a clear competitive advantage. ROI projections indicate a high return on investment, driven by the increased efficiency, reduced costs, and improved performance of PoDL systems incorporating this technology. This innovation has the potential to disrupt the PoDL market by offering a superior solution for noise mitigation, paving the way for wider adoption and new applications.","faqs":null,"topics":["PoDL","Power Over Data Lines","dV/dt control","dI/dt control","noise mitigation"],"tech_cluster":null},"seo":{"title":"Podl System with Active Dv/dt and Di/dt Control - Patent US-9853838","description":"Discover how the Podl System with Active Dv/dt and Di/dt Control reduces noise in Power over Data Lines (PoDL). Full patent analysis, claims, and technology details.","keywords":["PoDL","Power Over Data Lines","dV/dt control","dI/dt control","noise mitigation","active circuitry","passive filtering","Ethernet","data transmission","patent","patent US-9853838"]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9853838","license":"CC-BY-4.0-like","license_terms":"AI-generated analysis on this page (summary, layman_explanation, technical_analysis, business_analysis, faqs) may be reused with attribution and a visible link back to the canonical URL above. Patent abstracts, claims, and bibliographic data are USPTO public domain.","required_link":"https://patentable.app/patents/US-9853838","citation_suggestion":"Patentable. \"PoDL system with active dV/dt and dI/dt control\" (US-9853838). https://patentable.app/patents/US-9853838","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9853838","json":"https://patentable.app/api/llm-context/US-9853838","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-30T09:40:32.616Z"}