Simple four-speed dimmer switch circuit
Source: InternetPublisher:supremeOne Keywords: Optical switch switching circuit ballast Updated: 2020/11/07
The simple four-way dimmer switch circuit is shown in Figure 8. It has 4 brightness
combinations: when switches Sl, S2 and S3 are closed, the light
E is the brightest; when Sl and S3 are closed, s2 is open, and the light E is the brightest. It is in
a brighter state; when SI and S2 are closed, S3 is turned on, and the light E is in a brighter state; when S1 is on the stand, S2 and S3 are
opened, the light E is the darkest; if S1 is turned on, the light E goes out. L can use the inductor of 20-10W R light ballast ,
and the power of E should not exceed 60W.
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