Corresponding Scheme for Harmonic Current of Bath Dryer LED
This article elaborates on the background of the version change of the GB 17625.1-2022 standard. Briefly describes the requirements of harmonic currents under the new standard and explains that the effective method to im-prove harmonic currents is to increase the power factor. Analyzes several corresponding methods for increasing the power factor. And for the bath dryer LED in the market,which have low power and the characteristics that their driver circuit boards are limited by both space and cost. Select the appropriate solution-the valley-filling circuit. Explain the circuit principle of the selected solution,conduct theoretical analysis on the reliability of key components,and then conduct ac-tual measurements to prove the feasibility of the solution. Finally,the standby state of the lamp bath dryer should also be considered in the entire equipment test.
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