ROHM had four patents in batteries during Q2 2024. The patent filed by ROHM Co Ltd in Q2 2024 describes a current mode control type switching power supply device. This device includes two switches, a current sensor, and a controller. The controller independently controls the switches based on the current sensed by the current sensor, rather than just the difference between input and output voltages. GlobalData’s report on ROHM gives a 360-degree view of the company including its patenting strategy. Buy the report here.
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ROHM had no grants in batteries as a theme in Q2 2024.
Recent Patents
Application: Current mode control type switching power supply device (Patent ID: US20240152171A1)
The patent filed by ROHM Co Ltd. describes a current mode control type switching power supply device that includes a first switch and a second switch connected to different application terminals. A current sensor is used to sense the current flowing in the second switch, and a controller is configured to control both switches independently of the difference between the input voltage and output voltage, based on the current sensed by the current sensor.
The patent further details a synchronous step-down PWM controller with a controller that includes a comparator, an oscillator, and a timing control circuit to control the switches. The controller operates based on the comparison of voltages and current sensing. Additionally, the patent covers the use of a MOS transistor as the second switch and a current sensing portion that senses current using the voltage across an on resistor of the MOS transistor. The patent also extends to in-vehicle equipment and vehicles incorporating the described synchronous step-down PWM controller for power supply 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 across the world’s largest industries.
