Main control chip power supply device
A main control chip and power supply device technology, applied in the direction of circuit devices, battery circuit devices, measuring devices, etc., can solve the problems of reducing battery usage time, insufficient energy saving and environmental protection, poor user experience, etc., and achieve the effect of prolonging the use time
Active Publication Date: 2020-10-16
WUXI WINGTECH INFORMATION TECH CO LTD
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Problems solved by technology
Therefore, when the smart terminal is powered by a battery, due to the continuous power consumption of the EC, the battery usage time is reduced, causing the user to frequently need to charge the battery, resulting in a poor user experience and not being energy-saving and environmentally friendly.
Method used
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Embodiment
[0042] see figure 1 , an embodiment of the present invention provides a main control chip power supply device, which is applied to an intelligent terminal. Such as figure 1 As shown, the main control chip power supply device includes a trigger module 103 , a power supply control module 117 , a main control chip 101 , a storage battery 102 and a first power chip 106 . The main control chip 101 is integrated with an embedded controller (Embed Controller, EC). The trigger module 103 is respectively electrically connected to the power supply control module 117 and the enable signal input end of the first power chip 106, and the storage battery 102 is electrically connected to the power signal input end of the first power chip 106, the trigger module 103, and the power supply control module 117 respectively. . The main control chip 101 is electrically connected to the output end of the first power chip 106 and the enable signal input end of the power supply control module 117 re...
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The invention provides a main control chip power supply device, and relates to the field of integrated circuits. The trigger module is connected with the power supply control module. the enable signalinput end of the first power supply chip is electrically connected; wherein the storage battery is electrically connected with a power supply signal input end of the first power supply chip, the trigger module and the power supply control module respectively, the main control chip is electrically connected with an output end of the first power supply chip and an enable signal input end of the power supply control module respectively, and the main control chip generates a power-off signal and transmits the power-off signal to the power supply control module after detecting a power-off signal;The power supply control module executes power-off operation according to the power-off signal; The first power supply chip is connected with the second power supply chip to enable the storage batteryto be grounded so as to generate a low level signal to the first power supply chip, and the first power supply chip continuously supplies the converted output voltage of the storage battery to the main control chip, so that the storage battery does not supply power to the main control chip any more when needing to save power, thereby prolonging the service time of the battery, saving energy and protecting the environment.
Description
technical field [0001] The invention relates to the field of integrated circuits, in particular to a main control chip power supply device. Background technique [0002] An embedded controller (Embed Controller, EC), also called a keyboard controller (KBC, KeyboardController) is a core electronic component of a smart terminal. After the smart terminal is turned on, EC is used for the working status of components such as keyboards, indicators, fans, and touch panels. In addition, the EC also controls the working states of the system such as standby and dormancy. At present, whether the smart terminal is in the power-on or power-off state, or in the standby or hibernation state, the EC keeps running. Unless the power device and battery are removed, and the smart terminal has no power input, the EC will be turned off. Therefore, when the smart terminal is powered by a battery, the battery's usage time is reduced due to the constant power consumption of the EC, causing users ...
Claims
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IPC IPC(8): G06F1/26G06F1/3203H02J7/00
Inventor 曹健
Owner WUXI WINGTECH INFORMATION TECH CO LTD