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Fade-in-fade light switch circuit 2
Source: InternetPublisher:ohahaha Keywords: Switch circuit light BSP transistor Updated: 2020/02/04
(2) Fade-in-fade light switch circuit 2
The circuit is shown in Figure 2-36. This circuit is based on the general thyristor trigger circuit and adds
a Darlington circuit composed of transistors VTi and VTz as a variable resistor for the single-junction transistor VT3.
Adjusting the potentiometer RP can change the time of the light
's gradual brightening and dimming process.
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