This paper presents an algorithm to convert the PWM gating signals for a voltage-source converter (VSC) to the signals suitable for gating a current-source converter (CSC). The proposed algorithm requires only the VSC-PWM output signals, therefore, it is easy to be implemented. The proposed algorithm is validated by experimental results using this algorithm to convert different VSC-PWM schemes to CSC-PWM gating signals. The applicability of the algorithm is also confirmed by applying it in a controller for a prototype CSC active power filter.