A battery protection circuit
A technology for protecting circuits and batteries, used in emergency protection circuit devices, electrical components, etc., can solve the problems of not being able to meet the static test without shutdown, mobile phone shutdown, high design requirements, etc., and achieve the effect of improving anti-static detection performance.
Active Publication Date: 2016-06-01
WUXI ZGMICRO ELECTRONICS CO LTD
View PDF4 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0008] However, in practical applications, for example, if the above protection circuit is installed in the battery, and then the battery is installed in the mobile phone, when the static electricity test is performed on the mobile phone, the mobile phone will often shut down after the electrostatic shock
Although the anti-static test performance of the battery protection circuit can be improved by improving the design of the printed circuit board inside the mobile phone, this requires high design requirements for the printed circuit board of the mobile phone. Require
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
[0022] In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.
[0023] Reference herein to "one embodiment" or "an embodiment" refers to a particular feature, structure or characteristic that can be included in at least one implementation of the present invention. "In one embodiment" appearing in different places in this specification does not all refer to the same embodiment, nor is it a separate or selective embodiment that is mutually exclusive with other embodiments. Unless otherwise specified, the words connected, connected, and joined in this document mean that they are electrically connected directly or indirectly.
[0024] Through a large number of experiments, it is found that in the static electricity test of mobile phones, the general static electricity accumulation will cause such ...
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 provides a battery protection circuit which comprises a battery protection unit, a switch combination circuit, a first capacitor and a first resistor. The battery protection circuit also comprises a first detection end connected with an anode of a cell, a second detection end connected with a cathode of the cell, a third detection end connected with a second power supply end, a charge control end and a discharge control end; when charging is abnormal, a charge protection signal is output by the charge control end; when discharging is abnormal, a discharge protection signal is output by the discharge control end; the switch combination circuit is connected between the cathode of the cell and the second power supply end; the anode of the cell is connected with a first power supply end; the first resistor is connected between the second power supply end and the third detection end; and the capacitor is connected between the third detection end and the cathode of the cell. Compared with the prior art, antistatic detection performance of the battery protection circuit provided by the invention can be improved.
Description
【Technical field】 [0001] The invention relates to the field of circuit design, in particular to a battery protection circuit for improving antistatic test performance. 【Background technique】 [0002] The battery protection circuit is usually installed in the battery. For example, inside the battery of a mobile phone, there is a small Printed Circuit Board (PCB for short), and the battery protection circuit is installed on this printed circuit board. The battery protection circuit is used to control the charging and discharging of the battery, and its basic functions include overvoltage charging protection, overvoltage discharging protection, discharging overcurrent protection, charging overcurrent protection and short circuit protection. [0003] Please refer to figure 1 As shown, it is a schematic circuit diagram of a battery protection circuit in the prior art. The battery protection circuit includes a battery protection chip (or battery protection unit) 110, a switch co...
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): H02H7/18
Inventor 王钊
Owner WUXI ZGMICRO ELECTRONICS CO LTD