Battery protection having controllable switching elements
First Claim
Patent Images
1. A device, comprising:
- a rechargeable battery;
a charging line, connected to a first terminal of the rechargeable battery, charging the rechargeable battery, wherein the charging line comprises two switching elements electrically opening or closing the charging line; and
a sense line, connected to a second terminal of the rechargeable battery, sensing a battery voltage, wherein the sense line comprises two switching elements electrically opening or closing the sense line.
1 Assignment
0 Petitions
Accused Products
Abstract
A device includes a rechargeable battery and a charging line, connected to a terminal of the rechargeable battery, charging the rechargeable battery. The charging line includes two switching elements electrically opening or closing the charging line, and a sense line, connected to a terminal of the rechargeable battery, sensing a battery voltage. The sense line includes two switching elements electrically opening or closing the sense line.
-
Citations
20 Claims
-
1. A device, comprising:
-
a rechargeable battery; a charging line, connected to a first terminal of the rechargeable battery, charging the rechargeable battery, wherein the charging line comprises two switching elements electrically opening or closing the charging line; and a sense line, connected to a second terminal of the rechargeable battery, sensing a battery voltage, wherein the sense line comprises two switching elements electrically opening or closing the sense line. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
-
-
11. A battery protection circuit, comprising:
-
a battery protection control circuit; two external charge terminals; two external sense terminals; two back to back switching elements electrically connected in between the charge terminals; and two back to back switching elements electrically connected in between the sense terminals; wherein the switching elements are controlled by the battery protection control circuit. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18)
-
-
19. A method, performed by a processor, comprising
monitoring a battery voltage; -
comparing the battery voltage to an upper threshold value; comparing the battery voltage to a lower threshold value; and if the battery voltage is higher than the upper threshold value or lower than the lower threshold value, electrically disconnecting charging lines and sense lines connected to the battery by switching off at least one switching element on at least one charging line and at least one switching element on at least one sense line. - View Dependent Claims (20)
-
Specification