Zero power consumption standby control circuit and control method

Abstract

The invention discloses a zero-power standby control circuit, which is used for zero-power standby control of smart home equipment, including a microprocessor MCU, a battery BT, a key unit, and a standby control unit, the standby control unit includes a MOS Tube T1, MOS tube T2 and MOS tube T3, the function key K of the key unit is connected to the pin IO1 of the microprocessor MCU, and is used to detect the pressing state of the function key K; the invention also discloses a zero The control method of the power consumption standby control circuit; the invention can completely disconnect the energy consumption components when the equipment is in standby, and truly realize the zero standby power consumption of the system, thereby prolonging the battery life to the maximum 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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