Universal inverter and control method thereof

Abstract

The invention discloses a universal inverter. The universal inverter comprises a transformer circuit, a rectifier bridge circuit, a filter circuit, a full bridge inverter output unit and an inverter control unit. The universal inverter is characterized in that: one end of the transformer circuit is electrically connected to one end of the rectifier bridge circuit; the other end of the rectifier bridge circuit is electrically connected to one end of the filter circuit; another end of the filter circuit is electrically connected to one end of the full bridge inverter output unit; another end ofthe filter circuit is electrically connected to one end of the inverter control unit; and the core of the full bridge inverter output unit is an inverter chip U1. The universal inverter has high inverter efficiency; through the inverter control unit, the conversion efficiency of electric energy is improved, the utilization efficiency of the transformer winding is high, and the waste of electric energy is avoided; the universality is strong; and the inverter source can be easily converted through a voltage-multiplying relationship design mechanism.

Description

technical field [0001] The invention relates to the field of inverter circuits, in particular to a general inverter and a control method thereof. Background technique [0002] An inverter is a device that converts direct current (DC) into alternating current (AC), and is widely used in air conditioners, home theaters, electric grinding wheels, computers, televisions, refrigerators, video recorders, massagers, fans, lighting, etc.; more simply In other words, an inverter is an electronic device that converts low-voltage (12 volts or 24 volts or 48 volts) direct current into 220 volts alternating current; we are in a "mobile" era, mobile office, mobile communication, mobile leisure and entertainment , in the moving state, people not only need low-voltage DC power supplied by batteries or batteries, but also need 220-volt AC power that is indispensable in our daily environment, and the inverter can meet our needs. [0003] However, most of the current inverters are designed wi...

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Problems solved by technology

[0003] However, most of the current inverters are designed with a limited voltage vertical. For example, an inverter can only be used for 12V, 24V or 48V batteries for inverter output, and the selected battery voltage must be consistent with the inverter design DC input voltage. Consistent, poor versatility, unable to switch the input voltage in a simple, effective and reliable way

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