Patent ID: 11909330
Assignee: DELTA ELECTRONICS (SHANGHAI) CO., LTD.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  G | IPC G  H

Claim 0:
1. A current control device configured to control N power conversion unit(s), wherein N is an integer greater than or equal to 1, the N power conversion units being connected in parallel when N is greater than 1, each of the N power conversion unit(s) comprising a signal input terminal and a current-controlled output terminal electrically connected to an external circuit, the current control device comprising:
a first current sensor coupled between the current-controlled output terminal and the external circuit, to sample a current flowing through the external circuit and to acquire a current sampling value; and
an error compensator electrically connected to the N power conversion unit(s) and the first current sensor, wherein the error compensator receives the current sampling value and a current reference value and generates a compensation value accordingly, and wherein the error compensator outputs N current command(s) to the N power conversion unit(s) respectively according to the current reference value and the compensation value,
wherein the error compensator comprises a compensation unit and a calculation unit, the compensation unit generates the compensation value according to the current sampling value and the current reference value, and wherein the calculation unit outputs the N current command(s) to the N power conversion unit(s) according to the current reference value and the compensation value.