1、unity power factor test

2、It can achieve unity power factor and low current distortion.

3、The principle of charge pump for achieving power factor correction (PFC) and its unity power factor condition are analyzed.

4、The paper presents a kind of zero-voltage soft-switching unity power factor converter.

5、The relationship between the unity power factor and the voltage balance of the capacitor was discussed.

6、A new type of switching power supply realize of the unity power factor from the network access point adjacent.

7、The PWM rectifier with unity power factor, harmonic content of the low energy features such as reversible transmission was introduced.

8、The paper analyzes the vector control theory for doubly fed induction generator, Maximal Power Point Track (MPPT) and control strategy for the unity power factor of stator output.

9、Based on the unity power factor control strategy of single-phase active power filter, remove the part of non-linear load is the single-phase full-controlled rectifier.

10、The method of instantaneous value comparison for source current control of unity power factor rectifier possesses advantages of simplicity as well as valid restriction for maximum switching frequency.

11、The simulation result shows that the DSP controller has very fast dynamic response and unity power factor, flexible control and simplified hardware design.

12、This paper improved the harmonic current detection method based on UPF (unity power factor), using the slipped window integral to replace the LPF (low pass filter).

13、The device for battery charge or discharge based on the technology of bidirectional converter can be used in charging or discharging battery, and realize sine wave of ac and unity power factor.