2 results about "Peak power output" patented technology

The application relates to a current detection circuit based on an H-bridge, comprising an H-bridge circuit and a current sampling and commutation circuit; the current sampling and commutation circuit is used for collecting the current flowing through the H-bridge circuit and comparing the current with a preset current threshold to control the commutation of the H-bridge circuit; a multistage amplification circuit is connected to the current sampling and commutation circuit and is used for multistage amplifying the collected current to obtain multistage amplified current; an MCU is used for providing the current sampling and commutation circuit with the preset current threshold and selecting the multistage amplified current in sections. The application carries out multistage amplification on weak current, effectively solves the pain points of low accuracy in a large range and weak signal in a small range in wide-range current sampling; the original current data are selected in sections, the peak current can be accurately detected, accurate basis is provided for the peak power output / input of a battery pack, and problems such as power overload and unstable motor power output caused by current detection errors are avoided.

This application discloses a wave generation method, apparatus, device, and storage medium, relating to the field of motor control technology. The method includes: determining the three-phase duty cycle, pulse width modulation period, and reference modulation ratio based on the actual torque and actual speed of the target motor; determining the sampling trigger time based on the reference modulation ratio and pulse width modulation period; determining the comparison value limiting range based on the sampling trigger time and dead time; and limiting the actual comparison value according to the limiting range; and generating a pulse width modulation signal based on the limited actual comparison value and dead time. This application adaptively adjusts the sampling trigger time by introducing a reference modulation ratio and adjusts the comparison value limiting range accordingly, maximizing the theoretical upper limit of the actual output duty cycle. This allows the inverter to output higher voltage over a wider operating range, thereby improving the peak power output capability of the target motor.