Using Cd4066B Touch Switch Wiring diagram Schematic

Build a Using Cd4066B Touch Switch Circuit Diagram.The CD4066B consists of four bilateral switches, each with independent controls. When touch switch SI is activated, R4 is driven high, and the control voltage goes high, which latches the switch. When S2 is activated, R4 goes low and the control voltage goes low, which deactivates the switch.

Using Cd4066B Touch Switch Circuit Diagram

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Electronic Touch Switch 1 Wiring diagram Schematic

This is an Electronic Touch Switch 1 Circuit Diagram. This switch reacts to the touch of a finger to turn lights and/or appliances on or off. The device uses the human body as an antenna to pick up 60-Hz hum, which is applied to a metal plate by your finger. The signal is fed to the input of Ul, an LM380 audio-power amplifier. An LM386 should work as well. 

 

 Electronic Touch Switch 1 Circuit Diagram

 

 

 

The 60-Hz output from the amplifier is rectified by Dl and D2, then filtered by C3. Potentiometer R3 sets the trigger voltage used to saturate Ql. When Ql turns on, the collector end of R4 goes almost to ground and provides the needed voltage to turn on Q2. Transistor Q2 turns on and clocks. 

 

The flip-flop is configured for toggle-mode operation, so its output switches states with each clock pulse. The 4027 (U2) is wired to toggle by tying the J and inputs high and the set and resets low. Transistor Q3 is connected to the Q output through the 4.7-KOhmhm resistor. Transistor Q3 drives Q4, the relay driver. Be sure that the load does not exceed the relay ratings.

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On Off Touch Switch Circuit

The modern mechanic switches are improved concerning of old technology. We need however many times to replacement some old switch or to check currents bigger than the durability of certain switches or simple we need something with modern appearance. For he and different reasons is essential the up schema. It is simple in the manufacture and the materials that use they exist everywhere.










Parts:

R1 = 3.3M
R2 = 3.3M
R3 = 10K
R4 = 1K
C1 = 10nF-63V
D1 = 1N4007
D2 = Red LED
Q1 = BC547
IC1 = NE555
RL1 = 12V Relay




This schema is based on the well known timer IC 555 (IC1), which drives a relay of which the contacts play the role of switch. The metal surfaces can have what form we want, but it should they are clean and near in the schema. In order to it changes situation it suffices touch soft somebody from the two plates. Plate MP1 in order to the contacts of RL1 close [ON], or plate MP2 in order to the contacts of RL1 open [OFF]. The current that RL1 will check depended from his contacts. The Led D2 turns on when the switch they are in place ON and the contacts of RL1 closed. Two small pieces of metal can be used instead of MP1 – MP2. Because MP = Metal Plate.
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