Abstract: A control circuit for bypassing a diode current and a control method are provided; the control circuit includes a main module, a diode-current sensing module, a driving module; the diode-current sensing module is for sensing a current flowing through a main diode to generate a sensing current; the driving module is for generating a driving current proportional to the sensing current to drive a main switching transistor to be turned on; the main module, the diode-current sensing module, the driving module form a negative feedback loop to reduce the current flowing through the main diode to a preset value. The present disclosure solves problems in the related art, such as heat generation caused by large currents flowing through a body diode or flyback diode when the main switching transistor is in an off cycle, and the control circuit being out of control due to large currents introduced into a substrate.

Abstract: A protection circuit for series-connected batteries is provided, including: a plurality of battery modules connected in series between an anode and a cathode of a battery pack, wherein each of the plurality of battery modules includes a single battery, a protection switch, and a single-battery protection module, wherein each single battery is connected in series with the corresponding protection switch, wherein each single-battery protection module is configured to generate an off signal and protect the corresponding battery module in response to the off signal; an off-signal level-shifting module, which transmits an off signal of one of the plurality of battery modules to the other battery modules; a transient-voltage suppression module, connected between the anode and cathode of the battery pack, for voltage deburring and decreasing a change rate of a total voltage across the anode and cathode of the battery pack.

Abstract: A charging/discharging overcurrent protection circuit and method. The circuit includes: an internal resistance sensing module, for sensing total internal resistance of serial charge/discharge switch transistors according to a preconfigured ratio in a charging/discharging state; a voltage selection module, connected to the internal resistance sensing module, for switching between different links according to a voltage gating switch so as to be connected to the internal resistance sensing module, to output a charging detection voltage and a charging reference voltage in a charging state, and output a discharging detection voltage and a discharging reference voltage in a discharging state; and an overcurrent signal generation module, connected to the voltage selection module, for switching between different inputs according to an input gating switch so as to generate a charging/discharging overcurrent protection signal according to a comparison result.

Abstract: 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.

Abstract: An offline mode user account authorization method includes obtaining an access privilege of a user account and setting an offline task access privilege of the user account according to the access privilege, retrieving user account information corresponding to a task to be executed from a preset task information comparison table when the task to be executed is implemented, determining whether the user account is online, executing the task to be executed with a user ID of the user account if the user account is online, and creating a super offline user account and assigning offline task access privilege of the user account to the super offline user account if the user account is not online. The implemented task to be executed is executed with the super offline user account.

Abstract: 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.

Abstract: An offline mode user account authorization method includes obtaining an access privilege of a user account and setting an offline task access privilege of the user account according to the access privilege, retrieving user account information corresponding to a task to be executed from a preset task information comparison table when the task to be executed is implemented, determining whether the user account is online, executing the task to be executed with a user ID of the user account if the user account is online, and creating a super offline user account and assigning offline task access privilege of the user account to the super offline user account if the user account is not online. The implemented task to be executed is executed with the super offline user account.

Abstract: 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.

Abstract: An antihypertensive pharmaceutical composition is provided, which contains levamlodipine or a pharmaceutically acceptable salt thereof, and indapamide. In the present invention, levamlodipine and indapamide are administrated in combination for treating hypertension, a good synergistic antihypertensive effect is achieved, and the edema side effect due to sodium and water retention caused when levamlodipine is administrated alone and the side effect of glucose metabolism interference caused when indapamide is administrated alone are mitigated.

Abstract: A levamlodipine compound pharmaceutical composition is provided, which contains levamlodipine or a pharmaceutically acceptable salt thereof, and chlorthalidone. In the present invention, levamlodipine and chlorthalidone are administrated in combination for treating hypertension, a high synergistic antihypertensive effect is achieved, and the edema side effect due to sodium and water retention caused when levamlodipine is administrated alone is mitigated. In addition, levamlodipine increases insulin sensitivity of an organism, and resists the side effect of increase in blood glucose level caused by chlorthalidone. The pharmaceutical composition of levamlodipine and chlorthalidone overcomes the disadvantage that levamlodipine takes effects slowly in hypertension repression.

Abstract: A pharmaceutical composition of levamlodipine or a pharmaceutically acceptable salt thereof and a ? receptor blocking agent, and a use thereof are provided. An active ingredient of the pharmaceutical composition contains levamlodipine or a pharmaceutically acceptable salt thereof, and a ? receptor blocking agent, in which the ? receptor blocking agent is one selected from nebivolol, bisoprolol, betaxolol, celiprolol, and nadolol. A use of the pharmaceutical composition in preparation of a medicine for treating hypertension is further provided. The pharmaceutical composition of the prevent invention has the advantages that the therapeutic effect is obvious, and the administration is convenient.

Abstract: An antihypertensive pharmaceutical composition is provided, which contains levamlodipine or a pharmaceutically acceptable salt thereof, and indapamide. In the present invention, levamlodipine and indapamide are administrated in combination for treating hypertension, a good synergistic antihypertensive effect is achieved, and the edema side effect due to sodium and water retention caused when levamlodipine is administrated alone and the side effect of glucose metabolism interference caused when indapamide is administrated alone are mitigated.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: 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.