The TT6061 is a touch switch circuit that is used in luminaires.
I. Overview (General Description)
The TT6061 IC is a two-stage (ON/OFF function) made in CMOS, which is a circuit.
When the hand touches once, the light will cycle according to the mode of on----off-----open----off.
The chip is available in an 8-pin dual in-line plastic package or an 8-pin COB package.
The touch lamp circuit integrates a power supply circuit, an oscillator, a zero detection circuit, a touch control circuit, a counting circuit, a power-on reset circuit, a phase modulation trigger circuit, and the like.
Second, the principle of action
1, in circuit diagram 1, R2, D1, ZD1, C3 constitute a simple resistor step-down half-wave rectification regulator circuit, output about 6.8V DC to the chip.
The AC sync signal (50HZ or 60HZ) is stepped down by R6 for use by the IC.
2, when the human hand touches the metal piece (the fourth pin of the IC is the touch end, the metal piece can be connected with the outer metal case of the lamp), the clutter signal of the human body is processed by C4, C5, 54 to the fourth leg of the IC ( TI), after the chip is internally processed, the control signal is output from the 8th pin (AT) to turn on the triac and the lamp is lit. The first conduction angle is the largest, and the bulb is the brightest; when the human touches for the second time, the control signal of the IC8 foot disappears, and the thyristor is turned off when the AC cross-zero is turned off, and the bulb is extinguished. When the third touch is made by hand, the 8-pin of the IC outputs a trigger control signal, the thyristor is turned on again, and the light bulb emits bright light... Continuous touch, the light will be cyclically changed according to the above process.
Third, characteristics (Features)
1. No mechanical switching device.
2. High sensitivity, good stability and high capacitive load (the maximum load of the lamp is 800PF when the human body is 50PF).
3. There are few peripheral components.
4. Drive LAMP, energy-saving lamps, fluorescent lamps, ring lamps and other light sources.
Control of motors, fans, other electrical appliances, etc.