Position: Index > Protect Circuit >

Steam iron automatic protection circuit diagram

2016-09-13 09:38  
Declaration:We aim to transmit more information by carrying articles . We will delete it soon, if we are involved in the problems of article content ,copyright or other problems.


Steam iron automatic protection circuit diagram
The circuit is shown as above, the commercial power passes C5, R7, R8 buck, VD7 ~ VDl0 commutating and VD11 regulator. The circuit provides operating voltage. When the iron is put horizontally, the mercury switch S downward about 15o and in a disconnected state. At this time, IC1-a outputs low level, C1 is charged by R2, ICl-c outputs low level, ICl-d has outputs low, VD3, VD4, IC1-e form NAND gate output high level, VT2 is turned on, relay Jl pulls in, then heating wire is heating, H neon lights are lit.