3results about How to "Strong anti-interference ability" patented technology

The application is suitable for the field of energy storage power supply technology improvement, and provides a control circuit and method for high-speed switching of bidirectional DCDC power supply charging and discharging, which acquires the output current of the bidirectional DCDC power supply in real time through an output positive and negative current sampling detection circuit and converts the output current into a differential voltage signal; an output current detection comparison circuit compares the signal and outputs a high / low level signal corresponding to the current direction; a master control unit digital control processor DSC1 controls the power supply to switch between the discharging and charging states immediately according to the jump of the level signal. The application uses simple differential amplification and high-speed comparison circuit to realize microsecond-level fast charging and discharging state following, solves the switching delay problem caused by the dependence of the prior art on communication or voltage loop, and has the advantages of fast response speed, high reliability, low cost, and wide application scenarios.

This invention provides a high-precision anti-disturbance control method for UAV gimbals under transient impact loads, belonging to the field of precision servo control technology. It employs a cascade control architecture: the outer loop uses model predictive control (MPC) and introduces control increment constraints to plan an overshoot-free velocity trajectory; the inner loop uses linear active disturbance rejection control (LADRC) and establishes an extended state observer to estimate and compensate for the total disturbance of multi-stage transient impacts in real time. This invention, using the aforementioned high-precision anti-disturbance control method for UAV gimbals under transient impact loads, reduces the settling time to 0.18 s and lowers the maximum dynamic position error during firing to 0.0005 rad, achieving precise steady-state maintenance under high-impact environments.

The utility model discloses a hardware circuit of a servo control system of an unmanned aerial vehicle, which belongs to the field of steering engine control and comprises a control module and a driving module which are stacked in a double-layer manner, and the control module comprises a main control chip, a wide-voltage power conversion circuit, a communication circuit and an interface circuit; the main control chip is respectively connected with the wide-voltage power conversion circuit, the communication circuit and the interface circuit; the driving module comprises a pre-driving chip, a three-phase inverter bridge and a current sampling circuit; the pre-drive chip is respectively connected with the three-phase inverter bridge and the current sampling circuit; the control module and the driving module are interconnected through a board-to-board connector; and the current sampling circuit is connected with the main control chip. The circuit is compact in overall size, high in integration level, high in interference immunity and wide in voltage adaptability, and suitable for precise control over the steering engine of the unmanned aerial vehicle.