Stylus power consumption control circuit and capacitive stylus
A technology for power consumption control and stylus, which is applied in electrical digital data processing, instruments, digital data processing components, etc. consumption effect
Active Publication Date: 2020-05-08
MAXEYE SMART TECH CO LTD
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- Abstract
- Description
- Claims
- Application Information
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Problems solved by technology
However, after the existing capacitive stylus is turned on, it is always in the power output state, and the capacitive stylus is always in the working process, which increases the power consumption of the battery and reduces the service life of the battery and the stylus.
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[0035] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.
[0036] It should be noted that if there is a directional indication (such as up, down, left, right, front, back...) in the embodiment of the present invention, the directional indication is only used to explain the position in a certain posture (as shown in the accompanying drawing). If the specific posture changes, the directional indication will also change accordingly.
[0037] In addition, if there are descriptions involving "first", "second" and ...
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The invention discloses a stylus power consumption control circuit and a capacitive stylus. The stylus power consumption control circuit comprises a battery, a first switch, a power switching circuit,a bistable control chip, a power management chip, an MCU, and an acceleration sensor; and the output end of the battery is connected with the input end of the power switching circuit, the output endof the power supply switching circuit is connected with the power supply ends of the power supply management chip, the MCU and the acceleration sensor respectively, the first control end of the MCU isconnected with the controlled end of the bistable control chip, and is connected with the first switch, the control end of the bistable control chip is connected with the controlled end of the powerswitch circuit, the second control end of the MCU is connected with the controlled end of the power management chip, the MCU is interconnected with the acceleration sensor, and the output end of the power management chip is connected with an electrode at the tip of the stylus. The power consumption of the capacitive stylus is reduced.
Description
technical field [0001] The invention relates to the technical field of stylus control, in particular to a stylus power consumption control circuit and a capacitive stylus. Background technique [0002] At present, in consumer electronic products, electronic products with touch panels are becoming more and more common. Among the existing touch panels, they are generally capacitive touch screens. From this, capacitive touch pens are derived, which can be used in electronic Operations on the touch panel of the product. However, after the existing capacitive stylus is turned on, it is always in the power output state, and the capacitive stylus is always in the working process, which increases the power consumption of the battery and reduces the service life of the battery and the stylus. Contents of the invention [0003] The main purpose of the present invention is to provide a power consumption control circuit of a stylus and a capacitive stylus, aiming at reducing the powe...
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IPC IPC(8): G06F3/0354G06F3/038G06F1/3234
CPCG06F3/03545G06F3/038G06F1/3259Y02D10/00
Inventor 李卓珺詹梓煜邓建钟洪耀
Owner MAXEYE SMART TECH CO LTD