18171214. SWITCHED MODE POWER SUPPLY (SMPS) simplified abstract (NXP USA, Inc.)
Contents
SWITCHED MODE POWER SUPPLY (SMPS)
Organization Name
Inventor(s)
Joan Wichard Strijker of Wijchen (NL)
Jeroen Kleinpenning of Malden (NL)
SWITCHED MODE POWER SUPPLY (SMPS) - A simplified explanation of the abstract
This abstract first appeared for US patent application 18171214 titled 'SWITCHED MODE POWER SUPPLY (SMPS)
The abstract describes a switched mode power supply (SMPS) with a unique charging circuit that controls the inductor current supplied to a load.
- The charging circuit increases the inductor current during a primary stroke time window and decreases it during a secondary stroke time window.
- The primary stroke ends when the inductor current reaches a high current limit, while the secondary stroke time window is set to a predicted duration.
- The circuit automatically starts the primary stroke after the predicted duration and measures the inductor current at the end of a detection window.
- If the inductor current is below a low limit at the end of the detection window, the predicted duration is shortened; if it is above the low limit, the predicted duration is lengthened.
Potential Applications: - This technology can be used in various electronic devices that require efficient power management, such as smartphones, laptops, and IoT devices.
Problems Solved: - The technology addresses the need for precise control over inductor current in SMPS to optimize power efficiency and performance.
Benefits: - Improved power efficiency, better performance, and extended battery life in electronic devices utilizing this technology.
Commercial Applications: - The technology can be applied in consumer electronics, industrial equipment, and automotive systems to enhance power supply efficiency and reliability.
Questions about switched mode power supply (SMPS): 1. How does the unique charging circuit in this SMPS improve power efficiency?
- The charging circuit optimizes inductor current control to enhance power efficiency in the SMPS.
2. What are the potential implications of using this technology in IoT devices?
- Implementing this technology in IoT devices can lead to longer battery life and improved overall performance.
Original Abstract Submitted
One example discloses a switched mode power supply (SMPS), comprising: an inductor configured to supply an inductor current to a load; a charging circuit configured to increase an inductor current during a primary stroke time window, and to decrease the inductor current during a secondary stroke time window; wherein the charging circuit is configured to end the primary stroke when the inductor current reaches a high current limit; wherein the charging circuit is configured to set the secondary stroke time window to a predicted duration; wherein the charging circuit is configured to automatically start the primary stroke after the predicted duration and measure the inductor current at the end of a detection window; wherein if the inductor current is below a low limit at the end of the detection window, then the charging circuit is configured to shorten the predicted duration; and wherein if the inductor current is above the low limit at the end of the detection window, then the charging circuit is configured to lengthen the predicted duration.
