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Proportional control vehicle engine cooling fan

The proposed device allows to pass from a relay blower control principle of the cooling system “temperature above normal - enabled, below normal - off” more, According to the author, favorable for the engine proportional control. Now with increasing coolant temperature rotor speed… Continue Reading

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Thermostat for heating system of the suburban home

The thermostat is designed to work with a heating system based on electric boilers heating. The scheme is based on the chip DS1621. Chip DS1621 is a thermometer and a thermostat with digital I / O, providing precision ± 0.5 ° C. When used as a thermometer, data is read through the I2C / SMBus serial bus… Continue Reading