COMPARISON CIRCUIT Russian patent published in 1997 - IPC

FIELD: electric engineering. SUBSTANCE: device has transistor, which base is connected to resistor and reference gate. In addition device has divider which first terminal is connected to common line and which second terminal is connected to input of comparison circuit. Collector of transistor is connected to output of comparison circuit. In addition device has additional transistor of opposite type, additional resistor and additional input of comparison circuit. Base of transistor is connected to emitter of additional transistor. It is also connected to additional input through resistor and to common line through reference gate. Collector of additional transistor is connected to emitter of transistor. It also is connected to common line through additional resistor. Base of additional transistor is connected to third terminal of divider. Base- emitter junction of additional transistor and reference gate have temperature-voltage response of equal sign and of equal order of magnitude. EFFECT: increased stability to temperature, increased efficiency of operations, decreased cost. 2 cl, 1 dwg