The difference between inverter and inverter

2021-11-02 17:12:12 jact_elec

The difference between inverter and inverter

 The supplier of the inverter braking unit reminds you: the inverter integrates high-voltage and high-power transistor technology and electronic control technology to become an independent transmission component. The function of the frequency converter is to change the frequency and amplitude of the AC motor power supply, thus changing the period of its moving magnetic field to achieve the purpose of controlling the motor speed. The frequency converter not only inverts the DC power supply to AC power supply, but also needs to continuously rectify the AC power supply to DC power supply. The inverter converts DC power into AC power. Simply put, the inverter is only the output part of the inverter.

Introduction to inverter

Variable-frequencyDrive (Variable-frequencyDrive, VFD) is a power control device that uses frequency conversion technology and microelectronics technology to control AC motors by changing the frequency of the motor's working power supply. The frequency converter is mainly composed of rectifier (AC to DC), filtering, inverter (DC to AC), braking unit, drive unit, detection unit and micro-processing unit. The inverter adjusts the voltage and frequency of the output power supply by breaking the internal IGBT, and provides the required power supply voltage according to the actual needs of the motor, thereby achieving the purpose of energy saving and speed regulation. In addition, the inverter has many protection functions. , Such as over current, over voltage, overload protection and so on. With the continuous improvement of industrial automation, frequency converters have also been widely used.

 Inverter converts DC power (battery, storage battery) into AC power (usually 220V, 50Hz sine wave). It is composed of inverter bridge, control logic and filter circuit. It is widely used in air conditioners, home theaters, electric grinding wheels, electric tools, sewing machines, DVD, VCD, computers, TVs, washing machines, range hoods, refrigerators, video recorders, massagers, fans, lighting, etc.

 The difference between inverter and inverter

 Difference 1:

 Inverter is a component used to convert direct current into alternating current.

 Inverter is a component used to change the frequency of alternating current.

 Difference 2:

 Inverter converts DC power (battery, storage battery) into AC power (usually 220V, 50Hz sine wave), and the frequency can also be adjusted;

 Inverter converts the input AC power into AC output of the required frequency; its principle is "AC-DC-AC" or "AC-AC", and the form of "AC-DC-AC" is more common. "AC-DC-AC" converts AC to DC first, and then converts DC to AC, that is, "rectifier + inverter"

Difference 3:

 The frequency converter must have a frequency adjustment part, and the inverter only needs to have a fixed output frequency.