Landis+Gyr Group has patented a power supply control circuit for electricity meters during AC power outages. The circuit includes input, comparator, and feedback control sections to manage power loss signals and output voltage, ensuring the power supply stops during outages. GlobalData’s report on Landis+Gyr Group 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 Landis+Gyr Group, was a key innovation area identified from patents. Landis+Gyr Group's grant share as of February 2024 was 56%. Grant share is based on the ratio of number of grants to total number of patents.
Power supply control circuit for electricity meter during ac outage
A recently granted patent (Publication Number: US11921532B2) discloses a power supply control circuit designed for managing the operation of a power supply in an electricity meter during an AC power outage. The circuit includes an input section that receives the power supply's output voltage and a power loss signal, activating a feedback control section to adjust the feedback signal to the power supply based on the output signal from a comparator section. This adjustment causes the power supply to cease supplying the output voltage, ensuring efficient management during power outages.
Furthermore, the patent details an electricity meter incorporating this power supply control circuit, emphasizing its ability to maintain functionality during AC power interruptions. The circuit's components, including the comparator section and feedback control section, work in tandem to set upper and lower threshold values for the output voltage, ensuring optimal performance and safeguarding against voltage drops below the minimum required for operation. Additionally, the method outlined in the patent involves generating a false feedback signal during power outages to prompt the power supply to stop supplying voltage, with provisions for adjusting threshold values based on operational requirements. Overall, the patent highlights a sophisticated system for power management in electricity meters, enhancing reliability and efficiency during AC power disruptions.
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