Abstract: A control circuit for a constant-current drive circuit, as well as a constant-current drive circuit are disclosed. The control circuit can obtain output information of the constant-current drive circuit and use it in combination with reference information to determine, according to an output condition corresponding to the current load of the constant-current drive circuit, a time point for the system to enter or exit a rapid drive mode. Therefore, it can be suitably used in various application scenarios to determine a time point for the system to entry into or exit from the rapid start mode. Compared with fast charging for a fixed period of time as used in the prior art, embodiments of the present invention can effectively overcome the problem of easy overshooting or inadequate acceleration during start as found in various applications.

Abstract: A control circuit, a chip and a control method are disclosed. The control circuit includes: an adjustment signal generation unit configured to detect an electrical signal reflecting a power supplied to a load under control of a current value of a reference signal, generate a feedback signal and output an adjustment signal based on both the feedback signal and the reference signal; and a control unit coupled to the adjustment signal generation unit and configured to control the switching circuit on and off based on the adjustment signal. With the generated adjustment signal that reflects a change in an adjustment metric indicated in the reference signal, the control circuit and the driving system can be adapted in real time to the specifications of any AC power standard. Moreover, much more granular adjustments can be made in the power supplied to the load.

Abstract: A control circuit for a constant-current drive circuit, as well as a constant-current drive circuit are disclosed. The control circuit can obtain output information of the constant-current drive circuit and use it in combination with reference information to determine, according to an output condition corresponding to the current load of the constant-current drive circuit, a time point for the system to enter or exit a rapid drive mode. Therefore, it can be suitably used in various application scenarios to determine a time point for the system to entry into or exit from the rapid start mode. Compared with fast charging for a fixed period of time as used in the prior art, embodiments of the present invention can effectively overcome the problem of easy overshooting or inadequate acceleration during start as found in various applications.

Abstract: Embodiments of the present application provide a license plate location method and apparatus. The method includes: acquiring a to-be-located license plate image; sending the to-be-located license plate image to a target network for license plate location; wherein, the target network comprises a feature extraction layer and a regression layer; extracting, by the feature extraction layer, a feature value of the to-be-located license plate image, and sending the feature value to the regression layer; acquiring a combination of a license plate frame area and a license plate character area, which is obtained by the regression layer based on the feature value; and determining a license plate area of the to-be-located license plate image based on a location area corresponding to the acquired combination.

Abstract: A control circuit, a chip and a control method are disclosed. The control circuit includes: an adjustment signal generation unit configured to detect an electrical signal reflecting a power supplied to a load under control of a current value of a reference signal, generate a feedback signal and output an adjustment signal based on both the feedback signal and the reference signal; and a control unit coupled to the adjustment signal generation unit and configured to control the switching circuit on and off based on the adjustment signal. With the generated adjustment signal that reflects a change in an adjustment metric indicated in the reference signal, the control circuit and the driving system can be adapted in real time to the specifications of any AC power standard. Moreover, much more granular adjustments can be made in the power supplied to the load.

Abstract: Embodiments of the present application provide a license plate location method and apparatus. The method includes: acquiring a to-be-located license plate image; sending the to-be-located license plate image to a target network for license plate location; wherein, the target network comprises a feature extraction layer and a regression layer; extracting, by the feature extraction layer, a feature value of the to-be-located license plate image, and sending the feature value to the regression layer; acquiring a combination of a license plate frame area and a license plate character area, which is obtained by the regression layer based on the feature value; and determining a license plate area of the to-be-located license plate image based on a location area corresponding to the acquired combination.