A small current detection circuit and method for a mobile power supply
A technology of small current detection and mobile power supply, which is applied in the direction of using digital measurement technology for measurement, etc., can solve the problem of not shutting down when the current is small, and achieve the effect of saving power and solving the problem of not shutting down when the current is small
Active Publication Date: 2019-05-28
CHIPSEA TECH SHENZHEN CO LTD
View PDF6 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0007] In order to solve the above problems, the object of the present invention is to provide a small current detection circuit and method of a mobile power supply, which can ensure that the mobile power supply can fully charge the terminal equipment and save the power of the mobile power supply itself, and can solve the problem of different PCBA boards at the same time. Noise caused by small current does not shut down the problem
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0036] In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention, but not to limit the present invention.
[0037] like figure 1 As shown, the implementation of the present invention mainly detects the current flowing through the mobile power supply load through the IDET port in the small current detection circuit, and the detection circuit includes a battery protection circuit 10, a switch circuit 11, a filter circuit 12, and a boost output detection circuit. 13, and the MCU peripheral circuit 14. The switch circuit 11 is composed of a PMOS switch control circuit 111 and an NMOS switch control circuit 112 , and the boost output detection circuit 13 includes a boost output automatic load detect...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention discloses a low current detection circuit and a method for a mobile power supply. The detection circuit comprises a battery protection circuit, a switching circuit, a filter circuit, a boost output detection circuit, and an MCU. The switch circuit consists of a PMOS switch control circuit and an NMOS switch control circuit. The boost output detection circuit includes a boost output automatic load detection circuit and a low current detection circuit. While terminal equipment is charged fully by a mobile power supply, the electricity of the mobile power supply is also saved; and a problem that shutdown can not be realized by low currents because of noises on different PCBAs can be solved.
Description
technical field [0001] The invention belongs to the technical field of mobile power supplies, and particularly relates to small current detection of mobile power supplies. Background technique [0002] With the rapid development of mobile Internet and intelligent terminal technology, people can more and more conveniently use terminals such as smartphones to obtain information and entertainment anytime, anywhere. However, various operations such as large-screen touch, mobile Internet access, and application running of smartphones inevitably require more power than traditional communication terminals, resulting in very fast power consumption. [0003] The emergence of mobile power supply has solved the problem that the power consumption of smartphones is too fast, and it is difficult to find a fixed charging interface when traveling. With its advantages of large capacity, fast charging speed, and easy portability, mobile power has become a must-have item for people to travel ...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): G01R19/25
CPCG01R19/25
Inventor 易克
Owner CHIPSEA TECH SHENZHEN CO LTD