BA5173, HT7706 dimming control application specific integrated circuit
Source: InternetPublisher:刘德华河北分华 Keywords: Application specific integrated circuit light control Updated: 2021/04/28
In the figure, VDI, VD2, Rl and Cl form a resistor step-down half-wave rectifier circuit, which outputs 5v DC voltage for the integrated block
. R2 provides the AC zero-crossing signal for the integrated block. R5 is the external oscillation resistor of the integrated block. R6 and C3 ensure that the integrated
block realizes the clearing and resetting task every time it is powered on. SB1 ~ SB4 are touch buttons for stepless dimming, 4-level step-down dimming, delayed extinguishing and
automatic cycle light switching respectively. Readers can choose any one or use all 4 buttons according to their own needs.
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