Electric steam iron temperature controller

Published:2011/8/5 2:04:00 Author:Ecco | Keyword: Electric steam iron , temperature controller | From:SeekIC

The electric steam iron temperature controller circuit is composed of the power supply circuit, water level detection circuit, temperature detection circuit and control implementation circuit, and it is shown in Figure 3-82. Power supply circuit is composed of the power transformer T, rectifier diodes VDl-VD4, resistor Rl, power indicator LED VLl, filter capacitors Cl-C4 and three-terminal voltage regulator integrated circuit ICl. Water detection circuit is composed of the the Nl which is inside of the operational amplifier integrated circuit IC2 (Nl, N2), transistor Vl, light-emitting diode VL2, resistors R2, R3, R5-R7, and the water level detection electrodes.



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