Abstract: Devices and methods are provided for current sampling and processing associated with, for example, an inverter for an electric vehicle to improve the performance of the inverter. By providing initial parameters for the devices and methods as well as providing estimates of some parameters, the devices and methods can reduce a delay in the time required to perform the sampling and processing of the current. Specifically, parameters for the next beat of a cycle are estimated in the previous beat to complete processing of the current faster, which reduces the delay time. This reduction in delay time increases an output bandwidth of the current loop, i.e., a maximum frequency of an alternating current that can be output by the current loop without attenuation, which improves the performance of the inverter.

Abstract: The present invention provides current sampling and processing device and method for an inverter, wherein said method comprises: setting initialization parameters during initial start-up of the current sampling and processing process and subsequently enabling a pulse width modulation counter; triggering and implementing a current sampling operation when the value of the pulse width modulation counter equals to the value of the second comparison and matching parameter; calculating a value of a new first comparison and matching parameter based on the sampled current value and then actually updating the value of the first comparison and matching parameter into the calculated value of the new first comparison and matching parameter in the immediately following overflow or underflow time; outputting a voltage corresponding to the updated value of the first comparison and matching parameter to control on and off of a circuit device when the updated value of the first comparison and matching parameter equals to the