Active-semi, Inc.

Active-semi International, Inc.

Harman International Industries, Inc.

Shanghai Huiri Semiconductor Technology Co., Ltd.

Chuan Xiao

Steven Huynh

Mingliang Chen

Mingfan Yu

The present disclosure provides a method and apparatus for an automatic parking system. The method includes: obtaining a parking-line segmentation image through a segmentation neural network; preprocessing the parking-line segmentation image to obtain at least one parking-line skeleton image; and calculating straight-line equations and straight-line endpoints for parking lines in the parking-line segmentation image based on the at least.

Method and apparatus for automatic parking system

The present disclosure provides a parallel battery charging circuit and charging method thereof. The charging circuit includes: a voltage conversion circuit, a voltage detection circuit, a feedback voltage selection circuit, and N charging current control circuits. By forming a differential feedback circuit composed of the voltage conversion circuit, the voltage detection circuit, and the feedback voltage selection circuit, an output voltage is adjusted according to a maximum error result, so that a voltage difference between the output voltage and a battery voltage corresponding to a maximum error result is a specified voltage difference, thereby starting charging from a battery with the lowest voltage.

Parallel battery charging circuit and charging method thereof

A lower-cost and more precise control methodology of regulating the output voltage of a flyback converter from the primary side is provided, which works accurately in either continuous voltage mode (CCM) and discontinuous mode (DCM), and can be applied to most small, medium and high power applications such cell phone chargers, power management in desktop computers and networking equipment, and, generally, to a wide spectrum of power management applications. Two highly integrated semiconductor chips based on this control methodology are also described that require very few components to build a constant voltage flyback converter.

Adjusting for conductor loss to regulate constant output voltage in a primary feedback converter

Maintaining a constant output voltage by sampling and holding a voltage across an auxiliary winding

Primary side constant output voltage controller

A lower-cost and more precise control methodology of regulating the output current of a Flyback converter from the primary side is provided. The methodology regulates the output current accurately in both continuous current mode (CCM) and discontinuous mode (DCM) and can be applied to most small, medium, and high power applications such as cell phone chargers, power management in desktop computers and networking equipment, and, generally, to a wide spectrum of power management applications. Two highly integrated semiconductor chips based on this control methodology are also described that require very few components to build a constant current Flyback converter.

Primary side constant output current controller

A lower-cost and more precise control methodology of regulating the output voltage of a Flyback converter from the primary side is provided, which works accurately in either continuous voltage mode (CCM) or discontinuous mode (DCM). The methodology can be applied to most small, medium and high power applications such as cell phone chargers, power management in desktop computers and networking equipment, and, generally, to a wide spectrum of power management applications. Two highly integrated semiconductor chips based on this control methodology are also described that require very few components to build a constant voltage Flyback converter.

Growing community of inventors

Shanghai, China

Chuan Xiao