Good News | Congratulations to our company for winning three more national invention patents

Source：   Time：2023-12-18    View：

  On November 24, 2023, ChipNorth  Electronic Technology (Nanjing) Co., Ltd. applied for an invention patent "Circuit, method and electronic device for eliminating back electromotive force" (patent number: ZL 2021 1 1424036.9); On December 8, the invention patent "On-board power supply and automobile power supply device" (patent number: ZL 2022 1 0495155.1) applied by ChipNorth  Electronic Technology (Nanjing) Co., Ltd. and the invention patent "A current limiting control circuit and method for motors" (patent number: ZL 2018 1 0963340.2) applied by Shanghai ChipNorth  Electronic Technology Co., Ltd. were officially authorized by the State Intellectual Property Office, and invention patent certificates were issued at the same time.

Patent Introduction:

I.        Circuit, method and electronic device for eliminating back electromotive force

This patent relates to the field of electronic technology and provides a circuit and electronic device for eliminating back electromotive force to solve the problem that the existing relay generates back electromotive force when braking or stopping, causing a large voltage spike on the input power supply and breaking down the input and output devices.

II.      On-board power supply and automotive power supply device

<span This invention patent relates to the field of electronic technology and provides a vehicle-mounted power supply and a vehicle power supply device to effectively suppress the positive pulse at the output voltage output end of the vehicle power supply.

III.     A current limiting control circuit and method for motors

<span The invention relates to the field of motor control, and in particular to a current limiting control circuit and method for a motor, which can achieve the purpose of limiting the peak current when the motor is powered on without a current limiting resistor, protecting the motor and improving efficiency.

ChipNorth  Electronics is committed to the research, design and sales of integrated circuits and solutions for industries such as power, photovoltaics, energy storage, new energy vehicles, communications, industrial control, security, fire protection, and smart homes. The company's main products include: power management chips, display driver chips, motor driver chips, safe power chips, power line and RF and other communication SOC series chips and solutions. The products have been widely used in State Grid, China Southern Power Grid, NARI Group, Xuji Group, Hikvision, Xiaomi, Midea and leading companies in the field of power meters. The products serve more than 500 companies and are sold to more than 50 countries and regions around the world.

In terms of products, ChipNorth  Electronics currently has three product lines, namely power product line, driver product line, and power communication product line, with a cumulative shipment of more than 600 million chips.

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