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Power supply circuit and PCB design needed

We need a circuit and PCB design for a 5 volt power supply with a battery charge and supply circuit to provide power when the input voltage fails. In effect this is a small simple 5 volt UPS, without any fancy "on battery" or "supply fail" outputs other than a couple of LED indicators.

The battery circuit must disconnect the battery at a defined voltage to prevent full discharge and cell damage when using a sealed lead acid battery and it must also prevent overcharge of the cell.

The 5 volt output must have a timer, so that the supply will only switch on 30 seconds after power is supplied to the input.

Input range 12 to 48 volts.

Output 5 volts @ 1 or 2 amps.

Battery is to be connected externally, voltage and capacity variable depending on desired run time.

The overall purpose is to produce a small, robust and cheap device.

Deliverables are:

1. Circuit design

2. Gerber, solder resist, component layout and drill files to manufacture PCB

3. Parts list

4. Sample PCB for test.

Kemahiran: Elektronik

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Tentang Majikan:
( 1 ulasan ) Stoke-On-Trent, United Kingdom

ID Projek: #265673