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Journal of Chemistry and Life

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Alphabetical list articles with annotations, from journals published in 2008 in the journal Chemistry and Life:

Avocado

Alexander Nikolaevich Engelhardt

Aluminum Hydrogen Energy

Peanut

archaic thinking

Astrology and logic

Astrology and logic or six questions for astrologers

Eggplant

Biofuels: new energy or fashion fad?

Biochemistry of Saint Valentine

The disease that was forgotten

big collision

big exit

The future of depleted uranium

In defense of nitrates and phosphates

In the mirror of the exam

They floated in the sieve

Return to the world of Aristotle

Possible exobiology

The Magic Flute: characters and performers

Hemoglobins - all-around squirrels

Alcoholism genes

Anthem of domestic chemistry

The Eye and the Sun, or the Photochemistry of Vision

GMOs on the loose

GM Foods: The Battle of Myth and Reality

Racing with obstacles in different directions

Walnut

Buckwheat

mushrooms

Group selection is back?

Humic raw materials - an alternative to biomass

Humic substances - a challenge to chemists of the XXI century

Two studies on the structure of the earth

Two smart ones. And the third

Deuterium life

Is it easier to divide than to add?

James Watson in Moscow

Diplodocus-II Diet

Chukotka diet

Diesel Rhapsody

Why do we need scents?

Long road to Mars

road chemistry

Dragon from the Longisquamid family

There is a contact!

Liquid crystals: cholesterics

Life in tears

Why was Giordano Bruno burned?

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Linear current regulators for LED lighting Infineon BCR3, BCR4 18.09.2016

Infineon's BCR series linear regulators are ideal for driving LED currents from 10mA to 250mA and are the best choice for low to medium power general purpose luminaires.

This solution is cost-effective, requires only a few additional components, and takes up minimal space on the device's circuit board. The light output level can be adjusted with an external resistor. PWM control is supported by a microcontroller or an external digital transistor.

Chips are presented in miniature packages SOT143, SOT343 and SC74. Among the high-power regulators, Infineon also produces the TLE4309G model in a package with a TO263 heatsink.

A feature of Infineon regulators is the negative temperature dependence of the output current, which allows you to extend the life of the LEDs by reducing the current through the LEDs at high ambient temperatures.

Applications for low-power drivers are advertising signs and letters, LED strips for decorative lighting, vehicle lighting, household appliances, architectural lighting, and much more.

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