Turn-key PCB assembly services in prototype quantities or low-volume to mid-volume production runs

Reusing LiPo power supply for your embedded project

Reusing LiPo power supply

Every electronics device needs a power supply. In many cases we just go with AA batteries, 9V + regulator, wall mounted adapter and LiPo cells. First ones are obvious enough – easy to obtain and pretty safe. Lithium technology batteries falls in to different category. These cells carry much more capacity than casual batteries, but also are more dangerous and sensitive to too much discharge and overcharge. This is why in almost all cases LiPo batteries come with small PCB attached to them. This circuit at least takes care of disconnecting battery in case of discharge bellow threshold (2.7V). In battery packs this situation is more complex. Proper circuit should monitor individual cells and disconnect whole pack if at least one cell reaches the threshold. But in reality cheap battery… Continue reading