How does a dimming lamp work? Describe it in detail!

The simplest method is to use silicon controlled rectifier. The relationship between voltage and time of alternating current is sine wave. Silicon controlled rectifier can turn off the front of each sine wave, forming an incomplete sine wave, making the input power smaller and the lamp dim. The so-called dimming is to adjust the percentage of time when the thyristor turns off the sine wave.

Reflections on reading common sense of traditional culture

A summary of the ideological and political work of primary school class teachers

The political paper on consumption during the Spring Festival uses the knowledge of economic life.

Candle cutting paper

Future clothing composition

Summary of the work of primary school Chinese teaching and research group

Write an 800-word composition on the topic of "think twice before you act"

Discussion on energy-saving design measures of HVAC in civil buildings?

How about the University of Toronto?

The Significance of New Chinese Clothing