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Dual Ideal Diode Circuit

Old 02-27-2024, 07:50 AM
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secondsensei
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Default Dual Ideal Diode Circuit

Hi there,

We are in the process of developing a VTOL (Vertical Take-Off and Landing) delivery drone.

Our project involves integrating two 12S 16000mAh LiPo batteries to function in parallel. We wish to implement a dual ideal diode system that would facilitate this parallel connection. This system is crucial for our drone's powerplant, which is tasked with powering 10 85Kv Brushless DC (BLDC) motors. Among these, 8 motors are vertically aligned to facilitate vertical takeoff. During the transition to horizontal flight, these vertical motors will become inactive, leaving 2 motors operational for forward propulsion.

The motors are designed to nominally pull 10 Amps each with a 36 inch propeller, primarily during the critical phases of taking off and landing, which last for less than 5 minutes total, generating 5 kg of thrust each. We estimate that the maximum total current draw for the system will be at or below 200 amps during peak usage times. Additionally, we anticipate a hover current of around 100 amps during normal operation. These are conservative estimates.

Given these specifications, we are seeking a solution that can handle these demands while ensuring a balanced load between the two batteries while preventing backfeeding.

We are looking for a knowledgeable and experienced circuit designer who can help us.

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