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


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