# Scheda Controllo Avvitatore
**Source:** https://inteaengineering.it/en/case-study/scheda-controllo-avvitatore
**Language:** English

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# Hammer screwdriver control board

case studies  >Hammer screwdriver control board

### Multiple batteries to power heavy-duty professional power tools: innovation on the edge of the patent.

![power tools](https://inteaengineering.it/wp-content/uploads/2022/12/01-16-Case-studies-schede-Power-tools.jpg "01-16-Case-studies-schede-Power-tools")

Intea once again “crossed swords” with a consolidated client who proposed an unprecedented challenge with numerous implications: **increasing the power** of a professional electric screwdriver for the railway sector but **without changing the type of battery** . A seemingly elementary need but one that went far beyond connecting a pair of batteries In series or parallel.

The customer needed a tool with almost double the power compared to existing ones already controlled by Intea boards. To achieve this, it was necessary to double the battery and consequently create a BMS system that would inevitably impact the product costs, as well as the dimensions, weight, and difficulty of housing the heat sink.

With **in-depth teamwork** , Intea and the client broke down the problem to the smallest details, deconstructing the engine’D characteristics down to the intuition of **exploit three-phase power with special precautions** obtaining at the same time control of the battery charge and the correct delivery of power essential for this category of tools.

Thanks to this control board, the customer has been definitively relieved of potentially very critical and burdensome issues, such as the need to maintain the charge level for the batteries perfectly identical and the constraint of more frequent replacement of the same, as the decay In efficiency of one of them would have compromised the power supply. An undeniable advantage In economic terms and operational efficiency.

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