Fresh air purifying machine high voltage control circuit

Abstract

The invention discloses a fresh air purifying machine high voltage control circuit. The circuit comprises a power input end V_POWER, a resistor R1, a resistor R2, a resistor R3, a resistor R4, a resistor R7, a resistor R8, a resistor R9, a a resistor R10, a capacitor C3, a diode D3, an MOS transistor Q1, a drive IC, a pulse boosting module, a high voltage transformer and a capacitor C4. The power input end V_POWER is electrically connected with the first end of the resistors R7 and R9. The second end of the resistor R7 is electrically connected with the fifth pin of the high voltage transformer. According to the fresh air purifying machine high voltage control circuit, the boosting circuit of low voltage DC 12V is adopted without damage to equipment or personnel in the use process, and the electrostatic purifying machine high voltage circuit has a current sampling function so that the work state of the circuit can be monitored in real time, the circuit can be automatically turned off after failure occurs on the circuit and thus no property loss is generated.

Description

technical field [0001] The invention relates to a high-voltage control circuit of a fresh air purifier, belonging to the technical field of fresh air systems. Background technique [0002] At present, the high-voltage circuit of most electrostatic purifiers on the market adopts a high-voltage DC 400V boost circuit, which causes potential danger to equipment and personnel, and most high-voltage circuits of electrostatic purifiers do not have a current sampling function, and cannot monitor the working status of the circuit in real time. , After the circuit fails, it may not be able to automatically shut down, which may easily cause property loss. After the collector plate of the electrostatic purifier collects excessive particles, the discharge capacity increases, causing excessive current to burn out electronic components or burn out other parts of the equipment. . Contents of the invention [0003] The object of the present invention is to provide a high-voltage control c...

AI Technical Summary

Problems solved by technology

[0002] At present, the high-voltage circuit of most electrostatic purifiers on the market adopts a high-voltage DC 400V boost circuit, which causes potential danger to equipment and personnel, and most high-voltage circuits of electrostatic purifiers do not have a current sampling function, and cannot monitor the working status of the circuit in real time. , After the circuit fails, it may not be able to automatically shut down, which may easily cause property loss. After collecting excessive particles, the discharge of the electrostatic purifier collector plate will increase, causing excessive current to burn out electronic components or burn out other parts of the equipment.

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