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Personal air conditioner

30.07.2002

The idea of personal air conditioning, already embodied in a number of original designs, has become very popular recently.

A personal air conditioner (in English, PEZ - Personal Environment Zones) not only cools the face and breath, but also ionizes the air just before it enters the nasopharynx. In addition, the owner of the "our" air conditioner can protect himself from any odors. Several variants of PEZ have been developed, and all of them are able to clean the air from smoke and dust. The advantages of the novelty include its portability: the device is comparable in size to a CD player.

The kit includes a replacement filter and batteries. The design is worn around the neck and looks like a collar weighted with a filter, a wire goes down the back to the battery hanging on the belt and feeding all this miracle. There are models that specialize in air humidification.

This kit comes with a small water container. Depending on the model, the cost of personal air conditioners ranges from $50 to $100.

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Random news from the Archive

Parade Technologies USB 3.0 Repeaters 15.12.2013

Increasing the density of the layout of mobile devices makes the conditions for the passage of signals far from optimal. Losses and interference violate the integrity of the signal, interfering with the normal operation of high-speed interfaces. This must be taken into account when placing components and designing the layout of printed circuit boards. However, for example, the outputs of USB 3.0 controllers integrated into single-chip systems are not designed to be affected by connectors, cables, and suboptimal component placement.

The solution is to use repeaters that restore the waveform and ensure compliance with the requirements of the specifications.

Parade Technologies has unveiled two models of USB 3.0 repeaters optimized for use in next generation smartphones, tablets and other mobile devices. According to the manufacturer, the PS8731 and PS8733 chips are characterized by the smallest power consumption and size among USB 3.0 repeaters.

PS8731 USB 3.0 Single Channel Omnidirectional Repeater, PS8733 USB 3.0 Single Port Bidirectional Repeater
Model PS8731 is a single port omnidirectional USB 3.0 repeater, PS8733 is a single port bidirectional USB 3.0 repeater.

Both products are produced in 2 x 2 mm TQFN packages and are designed for a supply voltage of 1,2 V. At present, their trial samples are available, and the manufacturer expects to start serial deliveries in the first quarter of next year. The wholesale price of PS8731 is $0,49, PS8733 is $0,69 each.

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