I started selling LED filament lamps from the end of last year. During this period, new customers have many questions when selecting products. It seems that everyone is somewhat unfamiliar with the characteristics of several driving schemes for this lamp. In order to facilitate the entry of customers, but also to sort out the knowledge of this aspect, today, I am telling you about the LED filament drive, and share with you as follows.
First, LED filament drive classification
1. From the perspective of the driving scheme, the LED filament power supply is divided into three categories: resistance-capacitance buck; linear constant current; IC constant current.
2, from the structural point of view, LED filament power supply is divided into two categories: all glass without plastic parts; with plastic parts. Among them, there is no need to distinguish the type of lamp, such as E26/E27/B22; E14/E17 is another.
Second, the main features of three kinds of LED filament drive solutions
1. Resistive capacity and voltage reduction: small size, low cost, constant voltage fluctuation, stroboscopic, must pass EMC
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