| 摘要 |
An electronically commutated pump motor circuit comprises an input configured, to receive at least a first range of voltages, and a power conditioning circuit. The power conditioning circuit includes an active power factor correction circuit, coupled to the input. The power conditioning circuit is configured to receive the first range of voltages and automatically output to an electronically commutated motor (optionally a pump motor) a substantially constant DC voltage for input voltages within the first range of input voltages, boosted with respect to a voltage received at the input, to thereby maintain a substantially constant motor shaft speed for any voltage within the first range of voltages. |
