An active filter is actually an amplifier with a specific frequency response. It is based on the operational amplifier and adds passive components such as R and C.
active filter
What types of active filters are there? Active filters mainly include low-pass filters, high-pass filters, band-stop filters, all-pass filters, etc. Our lives cannot be separated from electricity. When enterprises have power quality problems, they must be treated strictly. There are many methods to deal with harmonics, such as active filters, passive filters, parallel zigzag transformers, etc.;
One of the most effective processing methods is the active filter. The power unit of the equipment adopts the modular design of IGBT bridge PWM inverter. The same module is interchangeable, small in size, high in efficiency, safe and reliable, simple in maintenance and fast in replacement. The high-frequency air-cooling heat dissipation technology of the power unit ensures the required ambient temperature of the IGBT components and improves the reliability of the long-term safe operation of the machine.
Active filters are also widely used in precision electronic equipment such as commercial complexes and hospitals. In the face of the epidemic, the angels in white who are fighting on the front line have built a high wall called safety for people. In the face of power supply quality, the existence of active filters has also built a barrier called security for users. May the first-line angels in white return triumphantly, and may you be clean and healthy in the corporate power environment!