The invention discloses a
lithium battery protection board circuit based on a zero-
ohm resistance element. The
lithium battery protection board circuit based on the zero-
ohm resistance element comprises a first
control switch, a second
control switch, a PTC
overcurrent temperature protector, a first
microcontroller, a second
microcontroller, an interface circuit, resistors from a first one to a fourteenth one, capacitors from a first one to a thirteenth one, a first
diode and a second
diode, wherein the twelfth
resistor is in
single point grounding, the thirteenth
resistor is a jump-joint, and both the twelfth
resistor and the thirteenth resistor are zero-
ohm resistors. According to the
lithium battery protection board circuit based on the zero-ohm resistance element, direct SMT can be achieved when the zero-ohm resistors play the role of the jump-point, traditional manual
welding jump-points are simplified, and therefore
machining time in the production and manufacturing process is shortened; when the zero-ohm resistors are all in jump-point
single point grounding, in the process of a PCB design, a
ground line is divided into two networks, errors are not prone to occur in the process of
processing like large-area
copper pouring, and in addition, the
ground line can be used as a fuse; when the zero-ohm resistors play a role in
crossover, in the process of the PCB design, the number of
layers of PCBs can be reduced, and therefore
machining cost of the PCBs is saved, and the PCBs are relatively attractive and convenient to install.