Introduction
This micro-blog presents the electronics circuit and motor part number details for a well-known battery-powered cleaning brush.
Electronics
The product design consists of a DC motor, rechargeable battery and associated battery charge monitor. Provided with the product is an external mains power adaptor as the recharging source.
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| DC Motor from Cleaning Brush |
The motor is rated at DC 3.6 V, part number RS390SH-6213. A similar motor can be sourced at companies such as AliExpress.
Powering the motor during the use of the cleaner is a standard Li-Ion battery (18650) with a rating of 3.7 V 2.2 AH.
Monitoring the charge state of the Li_Ion battery is an unidentified chip. The part number on the 8-pin chip (SOIC-8) was removed by linishing or a similar process.
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| Top Side of Cleaning Brush Circuit Board |
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| Bottom Side of Cleaning Brush Circuit Board |
The circuit containing the unidentified chip is displayed below.
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| Cleaning Brush Circuit |
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