Introducing the CD4013 washing machine timer circuit diagram

In semi-automatic washing machines, the wash timer and motor commutator both use mechanical time switches, which will become damaged after a period of use. This washing machine electronic timer can replace the above-mentioned mechanical time switch. The electronic timer circuit of the washing machine is shown in the figure. IC1, VT1, K1, etc. form an electronic timing switch to control the washing timing time of the washing machine. The monostable circuit composed of IC1 (1/2 double D flip-flop CD4013 ), resistor R4 and capacitor C3 determines the monostable time, which is the timing time. The timing of the circuit in this example is 40 minutes. The switch SA is made by modifying the timing switch of the original washing machine . When the knife position is moved to terminal 1, the timing starts. At this time, the Q terminal of IC1 is high level, VT1 is turned on, and K1 is closed. Contact K1 is closed, supplying power to the motor control circuit, and the motor rotates. During the timing time, SA can be dialed to terminal 2 at any time to reset the circuit and stop timing.