SolarEdge Technologies has filed a patent for a method to determine the order of power devices connected in a serial string to a central power device. The method involves using a signal with a frequency between 20 kHz and 500 kHz to determine the physical order of the power devices. The order is then stored in a non-volatile computer-readable storage medium. GlobalData’s report on SolarEdge Technologies 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 SolarEdge Technologies, smart energy mgmt systems was a key innovation area identified from patents. SolarEdge Technologies's grant share as of June 2023 was 1%. Grant share is based on the ratio of number of grants to total number of patents.

Determining order of power devices in a serial string

Source: United States Patent and Trademark Office (USPTO). Credit: SolarEdge Technologies Inc

A recently filed patent (Publication Number: US20230197872A1) describes a method for determining the physical order of power devices connected in a serial string. The method involves determining a subset of power devices and their physical order based on a signal with a frequency between 20 kHz and 500 kHz.

The method begins by determining the subset of power devices by sending commands to adjust the output voltage of a first power device and receiving voltage values measured at the output terminals of each power device. Based on these voltage values, it is determined that the subset of power devices is serially connected to the first power device.

To determine the physical order of the subset of power devices, commands are sent to adjust the impedance between the serial connections among the subset of power devices. The signal is then sent to the subset of power devices, and the values of the signal measured at the serial connections are received. Based on these received values, the physical order of the subset of power devices in the serial string is determined.

The method also includes the option to adjust the impedance to different values by sending additional commands and measuring a second signal received from the power devices. This allows for a more accurate determination of the physical order.

The patent also describes a power device that implements this method. The power device has serial output connections connected to a central power device and includes a transceiver to receive the signal from the central power device. The power device also includes a processor to determine the subset of power devices and their physical order based on the received signal.

Similarly, the patent describes a central power device that sends the signal to the power devices and includes a processor to determine the subset of power devices and their physical order based on the signal.

Overall, this patent presents a method and devices for accurately determining the physical order of power devices connected in a serial string, which can be useful in various power systems and applications.

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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