Simple Photovoltaic Charger – Solar Power module with Back-Up

Simple Photovoltaic Charger – Solar Power module with Back-Up

A simple photovoltaic (PV) to Li-On battery charger project is described here. At low VCC voltage, PV current flows to both the system at VCC and the battery. When VCC reaches the programmed float voltage (4.1V with ADJ floating), the LTC4071 shunts excess current not used by the...

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Deep Discharge Protector for 3.6V Li-Ion Battery

Deep Discharge Protector for 3.6V Li-Ion Battery

A rechargeable battery's load should be disconnected at the point of complete discharge, to avoid a further (deep) discharge that can shorten its life or destroy it. Because a battery's terminal voltage recovers when you disconnect the load, you can't simply disconnect the load when...

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