Zero-power-consumption standby control circuit and control method

Abstract

The invention discloses a zero-power-consumption standby control circuit which is used for zero-power-consumption standby control of smart home equipment and comprises a microprocessor MCU, a batteryBT, a key unit and a standby control unit, the standby control unit comprises an MOS transistor T1, an MOS transistor T2 and an MOS transistor T3, and a function key K of the key unit is connected with a pin IO1 of the microprocessor MCU, and is used for detecting the pressing state of the function key K; and the invention further discloses a control method of the zero-power-consumption standby control circuit. According to the invention, the energy consumption element can be completely disconnected when the equipment is standby, and zero standby power consumption of the system is truly realized, so that the endurance time of the battery is prolonged to the greatest extent.

Description

technical field [0001] The invention relates to the field of smart home technology, in particular to a zero-power consumption standby control circuit and control method for smart home equipment. Background technique [0002] With the development of smart home, battery-powered intelligent devices such as smart doorbells, security emergency callers, and portable vacuum cleaners have been more and more widely used. major technical issues. However, such devices tend to work less frequently and each time they work for a shorter duration, and are in a standby state most of the time. Therefore, during the battery life cycle, the power consumption of the device during standby cannot be ignored. Reducing standby power consumption has become the key to extending battery life. The existing technology generally uses an ultra-low power intelligent processor. When the device is in standby, the processor puts all other functional modules of the device in a state of stopping work, and onl...

AI Technical Summary

Problems solved by technology

But even so, based on the standby current of 10uA (microampere), the annual standby power consumption is nearly 90mAh (milliampere hours), which will be a great challenge for devices using batteries, especially button batteries.

Another traditional technical solution to reduce standby power consumption is to add a power button switch to the device. When the device is not required to work, the power is cut off through the button switch. When the device is required to work, press the switch to turn on the power, but additional power is added. The switch is not only inconvenient to use and operate, but also affects the overall size and structural design of the equipment, and also increases the cost. It is not the best solution in practical applications

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