Circuit Design for Battery Protection

• Stanje: Closed
• Nagrade: $105
• Prejetih vnosov: 3
• Zmagovalec/ka: ducchunguyen

Winner

Navodila natečaja

I'm in need of an expert who can design a circuit aimed at preventing current from flowing into a primary battery. This circuit will be used in a hazardous environment and needs triple redundancy.

Normally this can be done with 3 diodes in series (see example attached) but the voltage drop is too big with diodes. Battery is 3.6V and circuit needs at least 3.3V.

The design must adhere to the following specifications:

- Incorporate triple redundancy
- Ensure minimal voltage drop across the circuit
- The circuit must be able to withstand a malfunction in the main device that could produce up to 7.5V without allowing any current to flow into the battery
- Background current consumption should be minimal

Ideal candidates for this project should possess:

- Extensive experience in circuit design
- Proficiency in using integrated circuits and discrete components
- Ability to simulate circuits and show results/spice model

Notes on example.
Item 1. Do not allow any current to flow into battery, device may have voltage up to to 7.5
Item 2. Allow current to flow from battery to device with minimal voltage drop

Hint
It may be possible to do this with PMOS circuit.

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