Ultrasound washing machine Upgrade

This project is a major upgrade of the idea to clean/wash clothes and other small, water resistant items.
This divice does not require impulse transformer and is not critical to the type and number of piezo activators. A new way to sweep the frequency is used, in order to improve the efficiency of the cleaning.
Driving a piezo buzzer at a high frequency is not an easy task, especially when it is out of resonance. A special curcuit for insuring a dead time in the switching the output transistors was emplemented. This way, a great improvement in the power efficiency was achieved.

As with the first device, this can be powered both from a 12V car battery and a 220/110V to 12V adapter, so it can be used in- and outdoors. Here you can learn more about ultrasonic washing/cleaning and here are instructions for operation of the device. In short, with this device you get:

- You can wash delicate tissues as silk, nylon, underwear, man ties and so on.
- Colors of the clothes will be more radiant than ever.
- The clothes will have a soft, feather like touch.
- Ultrasonic washing effectively kills most of the bacteria on the clothes.
- Energy saving - the device consumes appr. 4W.

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