Illumination energy-saving apparatus for primary contactless voltage-regulating of transformer

Abstract

The invention relates to an energy-saving lighting device with the primary contactless voltage adjustment of a transformer and comprises a voltage holding unit and a surge voltage protection unit; wherein, an intelligent unit transforms sampling signals into digital signals and makes related calculation, analysis and treatment and digitally filters and transforms zero voltage signals and current zero signals to ensure the rapid and reliable gear position switch and no current discontinuity, no current shock and no generation of overvoltage, which can save the energy as well as actually prolong the service life of lighting fixtures and reduce the maintenance workload of lighting fixtures. The voltage can be adjusted with a primary winding of a transformer, which causes the whole device to be high in comprehensive performance, small in volume and low in cost. The users can conveniently examine or reallocate various working parameters of the device through computers and realize remote control or centralized monitoring through the networks.

Description

Technical field [0001] The invention relates to lighting energy-saving control, in particular to the intelligent control of lighting energy-saving devices for non-contact voltage regulation of primary windings of transformers, and belongs to the technical field of non-contact AC voltage regulation. Background technique [0002] Most of the electromagnetic voltage regulation and energy-saving products currently on the market use AC contactors to shift gears and adjust voltages. Due to the insufficient response speed of the contact action and the limited overcurrent capacity of the contacts, there is a shock when shifting gears. The current often causes the welding of the contacts of the contactor, so that the contactor cannot be broken, which reduces the reliability and service life of the product. Therefore, the contacts must be frequently maintained and replaced during operation, which increases operating costs. In addition, lighting energy-saving products that use AC cont...

AI Technical Summary

Problems solved by technology

[0005] At present, there is no lighting energy-saving product that uses a non-contact switch to switch gears at the primary level of the transformer on the market. Because of poor control, it is very easy to generate a few thousand volts or even tens of thousands of volts of high voltage on the primary winding of the transformer, which is easy to damage the non-contact switch or transformer

[0006] At present, there are lighting energy-saving products that use a non-contact switch to switch gears on the secondary side of the transformer, such as the patent ZL200520139604.0. Although the current is not interrupted, there is no current impact, and there is no overvoltage when the voltage is adjusted and the gear is changed, its volume is relatively large. , high production cost

Images