capacitor dimming circuit

(1) Capacitor dimming circuit
    The circuit is shown in Figure 2-63. When the switch SA moves from "1" to "3", the capacitance increases and the brightness of the bulb
also increases. When SA hits the "0" position, the light goes out, and when SA hits the "4" position, it lights up the brightest.
    The capacitance can be estimated according to the following formula:
    C=O. 066婰万元'pF)
    ~/
where P- the rated power of the light bulb . W'P
    . ——Power after dimming, w.
    CBB22 or CJ41 capacitors with a withstand voltage of over 300V can be used.