LED desk lamp control circuit

Abstract

The invention discloses an LED desk lamp control circuit, which comprises an illumination module, a sensing module and a single-chip microcomputer. The illumination module and the sensing module are both connected with the single-chip microcomputer. The sensing module comprises a pyroelectric infrared ray sensor, a signal processing chip, a slide rheostat R10, a resistor R11, a photoresistance R12, resistors R13-R16, slide rheostats R17-R19, non-polar capacitors C8-C9, a polar capacitor C10, a non-polar capacitor C11, a polar capacitor C12, and non-polar capacitors C13-C14. Besides a basic illumination function, the LED desk lamp control circuit also has other functions: an automatic induction switch is adopted so as to automatically detect approaching of people; and a sight protection purpose is achieved, and a user is reminded of how long the user has used a lamp according to settings, so that the eyesight of the user is protected and excessive eye strain is avoided. Compared with conventional desk lamps in markets, the LED desk lamp control circuit is higher in intelligence and integration, and better accords with principles of modern life.

Description

technical field [0001] The invention relates to the technical field of desk lamps, in particular to an LED desk lamp control circuit. Background technique [0002] Desk lamps are already necessary household electrical appliances for millions of households, and huge energy waste is often caused by forgetting to turn off the lights. In my country, lighting power consumption accounts for 12% of the total annual power generation. Most of the current table lamps use ordinary incandescent lamps, fluorescent lamps, energy-saving lamps and spiral energy-saving lamps, and the control methods mostly use manual switches, which cannot be adjusted continuously. Cannot be adjusted automatically. [0003] Another situation is that about 30% of the people in China have different degrees of vision problems, among which myopia is the main problem. The main cause of myopia is unhealthy use of eyes, such as continuous use of eyes for too long, reading, incorrect sitting posture when studying, ...

AI Technical Summary

Problems solved by technology

[0004] In addition, people often forget to turn off the desk lamp, or do not adjust the brightness of the desk lamp in time due to changes in the external environment during use, which also affects vision. Therefore, an intelligent new desk lamp that is convenient for people to use is necessary

Images