Power off memory circuit and power off memory method for full-automatic impeller type washing machine

A pulsator washing machine and power-off memory technology, which is applied to other washing machines, control devices of washing machines, washing devices, etc., can solve problems such as inability to continue to execute, and achieve the effect of more functions, humanized functions, and improved intelligence.

CN102720035AInactive Publication Date: 2012-10-10WHIRLPOOL CHINA
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2012-10-10
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention relates to a power off memory circuit for a full-automatic impeller type washing machine. The power off memory circuit comprises a micro controller unit (MCU), wherein the input end of the MCU is connected with the output end of a detection circuit; a power supply circuit supplies power to the detection circuit and the MCU; and a FLASH memory is arranged in the MCU. The invention also discloses a power off memory method for the full-automatic impeller type washing machine. According to the power off memory circuit, a power supply signal is detected by the detection circuit and then is processed by the MCU; and after a user starts the washing machine, the washing machine can finish programs automatically if the power fails and then resumes, and the phenomenon that the washing machine is stopped due to abnormal condition of a power supply, so that the intelligent degree of the washing machine is improved, the washing efficiency of the washing machine is also improved indirectly, and the washing machine has a humanized function.
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Description

technical field

[0001] The invention relates to the field of fully automatic washing machines, in particular to a power-off memory circuit and a power-off memory method for a fully automatic pulsator washing machine.

[0002] Background technique

[0003] At present, the household fully automatic pulsator washing machines on the market can automatically run the program according to the parameters set by the user after the user sets the program to start, without the need for the user to operate in real time. During the laundry process, when the user leaves, if the power of the washing machine is interrupted due to a power outage or other reasons, the washing machine program is also interrupted and cannot continue to run. Even if the power is restored, the washing machine cannot continue to execute the previous program and must wait for the user to return. , reset it, and then the washing machine can be started and continue to work. Therefore, the intelligent control of the ...

Examples

Embodiment Construction

[0015] A power-off memory circuit for a full-automatic pulsator washing machine, comprising a microcontroller MCU 1, the input end of which is connected to the output end of a detection circuit 2, a power supply circuit 3 supplies power to the detection circuit 2 and the microcontroller MCU 1, and the microcontroller MCU 1 Built-in FLASH memory, such as figure 1 shown.

[0016] Such as figure 2 As shown, the power supply circuit 3 includes a transformer PT1 whose input terminal is connected to 220V alternating current. The output terminals of the transformer PT1 are respectively connected to the detection circuit 2 and the input terminals of the rectifier bridge. The rectifier bridge is composed of diodes D5, D6, D7, and D8. The full-wave rectifier bridge, the crystal capacitor C16 is connected to the output end of the rectifier bridge in parallel, one end of the crystal capacitor C16 is grounded, and the other end is connected to the input end of the microcontroller MCU 1 t...