Preservation of rubber products. simple recipes

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FACTORY TECHNOLOGIES AT HOME - SIMPLE RECIPES
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Preservation of rubber products. Simple recipes and tips

Factory technologies - simple recipes

Directory / Factory technology at home - simple recipes

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Как save rubber products?

First of all, they must be protected from the action of light and heat, and therefore it is especially recommended to store them in a well-ventilated cool room (basement, etc.). To prevent the action of air, small rubber objects can be stored in liquids.

According to experiments made on the preservation of rubber sleeves, the following liquids gave the best results: a 10% aqueous solution of glycerin and lime water.

Author: Korolev V.A.

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Digital 30A DC-DC Regulators IR38263/5 24.12.2018

Infineon has released new IPOL IR38263 and IR38265 series digital DC-DC converters with output current up to 30 A. The converters are designed to power high-performance processor cores and other powerful low-voltage consumers.

The new controllers combine ease of use, high integration and full configuration via fast I2C or PMBus interface. Thanks to the latest advances in low voltage MOSFET technology, Infineon has been able to realize a sufficiently powerful DC-DC with an output current of up to 30A in a small PQFN-24 (5-7mm) package.

The presence of a digital interface makes this solution really flexible. All basic parameters (switching frequency, output voltage, protection thresholds) can be configured using a digital host controller. The digital interface can read input and output voltage, output current and temperature.

Technical specifications:

input voltage range: 5,5...16 V (1,5...16 V with external Vcc supply);
output voltage adjustable from 0,5V to 87,5% of Vin;
rated output current reaches 30 A;
conversion frequency is adjustable in the range of 150...1500 kHz;
Efficiency up to 96%;
Voltage Mode control algorithm (VM Engine Gen3) allows you to quickly process load changes;
setting the output voltage using 3 digital inputs PVID;
the ability to configure parameters via the fast I2C (IR38265) or PMBus (IR38263) interface;
the ability to read the values of the output voltage and load current using the digital interface I2C / PMBus;
operating temperature range -40°С...+125°С;
case PQFN-24 size 5x7 mm.

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