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More than Circuit EngineeringTemperature controller
Ñõåìû >> Measurement >> Temperature controllerTemperature controller
On a figure the circuit of simple and effective temperature controller is represented. Temperature controller circuit has optoelectronic upshot from the power supply. Switching on/off of the temperature controller circuit is synchronized from the phase of network in the moment of voltage transition through a zero, that diminishes hindrances at the use of the powerful heater R.
Temperature controller circuit.
Regulation accuracy of temperature can be calculated by formulas:
– instability of temperature control circuit,
– drift of analog microcircuit,
K – temperature in Kelvin degrees,
Ucc – voltage of bridge (5.6 V),
– temperature coefficient of resistance of temperature-sensitive resistor Rt (5 kOhm; ÊÌÒ-17);
– temperature step,
– change step Rp;
– temperature controller accuracy,
ku – amplification factor of microcircuit,
9.999 kOhm with step 1 Ohm.
added 23.05.08 00:06:39 | 
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