Offer scheme "original" touch switch lamp. The originality of his, is that he is still apart on-off switch allows to adjust the brightness of the lamp and has a "memory". And all this on one domestic chip!!! If you are going to equip at home the lamp or light of any automation, then this is what you need!
This device release several companies, with small adjustments in the schematic diagram. But in Amateur literature it lit not enough. And for good reason! The device deserves greater attention.
The algorithm simple: Short-term touch your finger to the sensor E1 includes lamp. Re - off. But if the finger hold sensor E1 more than 0.5 sec., then the brightness of the lamp will slowly increase (decrease). Removing the finger from the sensor E1 device "remembers" the selected the state of brightness. And when subsequent inclusions - switching off the lamp burns with installed brightness.
To change the brightness in a particular side, you just need to touch the sensor E1 and hold your finger to the required brightness setting. If when you touch the brightness increases and you need it to reduce, then remove your finger and tap again. And Vice versa - if you want to decrease.
I me for three years, two such devices work at home instead conventional switches. Instead touch plate along the wall (above the sofa) pulled thin copper wire. And if I "broke" to get up to turn off the lights, I just hand or even leg stretched hurting the wire and all. Morning - similar process. Well very convenient!
Details: V1 - KT315B, VS1 - CUB, D1 - XJ, D2 - CDB, R1 - 200(0.5 W), R2 - 1,3 K(1W), R3 - 10K(0,25 W), R4 - 100(0.25 W), R5 - 1.2 M(0.5 W), R6 - 4.7 M(0.5 W), R7 - C(0,25 W), R8 - 4.7 M(0,25 W), R9 - 4.7 M (0,25 W), C1 - 0,1(400V), C2 - 0,15(400V), C3 - MK (the electrolyte. 25V), C4 - 470(63V), C5 - 0,047(63V), C6 - 0,047(63V), D1 - XI, FU1 - 2A. The inductor L1 is 150 turns of PEL-0.4 ferrite core 400-N.(from any interference)
I recommend triac VS1 - CUB to replace the vehicle or 112-10-7 like. And parallel to the resistor R6 the Zener diode D3 - XA (as shown in the diagram).
The selection resistor R6 select sensitivity. It the resistance should be in the range of 4.7 M…1.2 M. the Sensor can to serve any metal plate size from 3 to 500 kV/cm. If you are not satisfied with the touch option, the switch can easily to alter contact.
For this will remove the elements R8, R9, D3, E1. The resistance R6 should be 100K. And between pins 5 and 3 chips enter a contacts or switch button.
Should notice that no extra settings required!
Author: Sachkov Y., Pervouralsk Sverdlovsk region; Publication: N. Bolshakov, rf.atnn.ru