A control system for DC high voltage output voltage stabilization and constant current power supply

Abstract

The present invention relates to a control system of a high direct voltage output voltage stabilization and constant current source, and is applicable to 'corona or ionization air discharging' air purification and freshness implement products. The control circuit provided by the invention is formed by the connection of a pulse width modulation integrated chip IC1, capacitors C1-C16, resistors R1-R18, field effect transistors VT1-VT3, a transformer TR1, voltage-regulator diodes DZ1-DZ3, a diodes D2-D7 and an inverter amplifier IC2. A high voltage output constant-current control circuit is composed of the resistors R3-R6, the resistors R11-R12, the capacitors C4-C5, the diodes D2 and the voltage-regulator diode DZ3. A high voltage output voltage stability control circuit is composed of the resistor R13, the resistors R15-R18, the capacitor C15 and the inverter amplifier IC2. According to the invention, the rising of the no-load high voltage may be effectively restricted, the high precision control of the output current and the output current may be realized, and occurrence of disaster accidents and the overdose generation of the ozone may be effectively prevented, therefore the control system of a high direct voltage output voltage stabilization and constant current source is applicable to the development of new generation, the popularization and the application of products.

Description

technical field [0001] The invention relates to a control system, in particular to a control system for DC high voltage output voltage stabilization and constant current power supply. Background technique [0002] With the acceleration of industrialization, the pollution of ambient air is increasing year by year. The so-called "air purifiers, negative ion generators..." and other electronic products have sprung up like mushrooms, including domestic famous home appliance group companies, foreign multinational group companies, and domestic small and medium-sized enterprises of varying quality. They are all trying to share the market opportunities brought about by the deterioration of the environment. [0003] Looking at the working principle of its products: nothing more than microporous filter type, high-voltage electrostatic adsorption type, high-voltage discharge air ionization type, etc. The microporous filter type is an example of physical filtration that is not describ...

AI Technical Summary

Problems solved by technology

None of the electronic air purifier products that are currently on the market use the output high-voltage constant current and voltage stabilization control technology, and the hazards and defects brought about are described in this article; they will pose a potential threat to the body and property

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