Abstract: A load switch circuit includes a power transistor, the first terminal is configured to receive the power supply voltage, and the second terminal is the output terminal of the load switch circuit and is coupled with an external inductive load; a clamping module including at least a mutually coupled clamping unit and a driving unit; the clamping unit, including a voltage-current converter and a first resistor, the first resistor is coupled between the output terminal of the voltage-current converter and the second terminal of the power transistor, the output terminal of the drive unit is coupled to the control terminal of the power transistor when the difference between the power supply voltage and the output voltage of the power transistor is greater than or equal to the preset clamping threshold, and the clamping unit outputs an effective drive control signal to the driving unit.

Abstract: The present application provides a power device driver including a detection module coupled to the power device and configured to detect the state of the power device; a driving module coupled to the detection module and the power device respectively and configured to detect the power of the detection module. As a result, the power device is regulated; wherein the detection module includes a fast detection sub-module configured to detect a state of the power device within a preset time period after the input signal of the driving device is invalid, and controlling the driving module to softly turn off the power device when there is overcurrent. The present application also provides a corresponding power device driving method and electric equipment.

Abstract: A load switch circuit includes a power transistor. A first terminal is configured to receive a power supply voltage, and a second terminal is the output terminal of the load switch circuit and is coupled with an external inductive load. A clamping module includes at least a mutually coupled clamping unit and a driving unit. The clamping unit includes a voltage-current converter and a first resistor, the first resistor coupled between the output terminal of the voltage-current converter and the second terminal of the power transistor. The positive input terminal of the voltage-current converter receives the power supply voltage, and the negative input terminal is coupled to the second terminal of the power transistor.

Abstract: The present application discloses a driving device for a power device, which includes a control circuitry configured to receive at least a system switching command and a feedback signal of a power device, and to generate a pull-up strength control signal or a pull-down strength control signal according to the received signals; and a pull-up array and/or a pull-down array, coupled between the control circuitry and the power device, and configured to provide a corresponding pull-up or pull-down strength for the power device according to the pull-up or pull-down strength control signal. The present application also discloses the corresponding electric appliance and power device driving method.

Abstract: This application discloses a driving device for a power device. It includes a detection module, coupled to the power device, configured to detect the overcurrent status of the power device; a drive module, respectively coupled to the detection module and the power device, configured to regulate the power device according to the detection result of the detection module; wherein, when the detection result is that the power device is in the first overcurrent state, the drive module is configured to cause the power device to enter the first protection mode that is softly turned off and does not respond to the system switching signal; when the detection result is that the power device is in the second overcurrent state, the drive module is configured to cause the power device to enter a second protection mode that is softly turned off but responds to a system switching signal; wherein the overcurrent degree in the first overcurrent state is higher than that of the second overcurrent state.

Abstract: This disclosure is related to the technical field of magnets, and in particular to a method for applying a coupled inductor to a DC-DC converter providing a DC current output, and based on the number of phases of the DC-DC converter, the coupled inductor is designed to have a corresponding number of windings, the windings are reversely coupled to cancel out the magnetizing fields to avoid flux saturation of the magnet material under high current excitation, and the coupled inductor has air gaps, the leakage flux in the air gap induced by each winding is in the same direction, the leakage magnetic flux is used to achieve the filtering of the output current.