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Handheld Mapper Battery Design Solution

February 8, 2023

Latest company case about Handheld Mapper Battery Design Solution

Preface: Due to the rapid development of handheld devices, their products are becoming more and more functional and require more and more energy, which requires higher and higher battery capacity, and the safety hazard has become the biggest problem to overcome for high-capacity lithium battery products. Our company strictly in accordance with international safety standards to do targeted design solutions for each safety certification developed by the dual protection of lithium battery programs such as: dual protection IC + MOS + FUSE or protection IC + MOS + PTC / BREAK program in line with international safety regulations such as: UL, CE, TUE, PSE, CB, GB. Such as certification standards, handheld mapping instrument final product to safety as the first criterion, can do: 1, arbitrary shaping, 2, high energy density, 3, double protection, good safety performance, 4, thin and light, 5, sufficient supply.
Design requirements.
I. Battery design requirements.
According to the product specifications and customer requirements, design the handheld device battery pack with the host, integrating high-capacity cells and safety double protection performance into the solution.
Second, the handheld mapping instrument battery design program.
(1) protection board (PCM): mainly for rechargeable high-capacity battery pack design protection circuit, due to the chemical characteristics of the lithium battery itself, need to provide overcharge, over discharge, short circuit, over current and over temperature protection functions to avoid causing combustion, explosion and other dangers.
(2) Protection IC: The main protection function chip of the design program, which monitors the battery cell online in time for overcharge, overdischarge, overcurrent, short circuit and other functions. Make the electric core work in a safe, stable and efficient range.
(3) Overcurrent protection chip (PTC): mainly designed for secondary protection function, PTC recoverable thermal cutoff has double functions of overcurrent protection and automatic recovery. PTC in battery products can prevent the battery from high temperature discharge and unsafe high current occurrence.
(4) lithium battery: polymer 705056P lithium-ion cells.
(5) field effect tube (MOSFET): MOSFET tube, which plays a switching role in the protection circuit.
(6) battery pack packaging: gel shell sound wave packaging.

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