Apd temperature compensating circuit
专利汇可以提供Apd temperature compensating circuit专利检索，专利查询，专利分析的服务。并且PURPOSE:To secure a constant level of the output signal for the light receiving system diode by using the diode featuring an optional temperature coefficient for the reference element and amplifying the change of the output level caused by the temperature to then apply it to the avalanche diode. CONSTITUTION:Plural units of Si diodes 11 and resistances 12 are connected in series and then connected between power voltage +VCC and the earth to constitute a kind of the potentiometer. Then the voltage division point is connected to the minus terminal of operational amplifier 14 via output level setting part 13 to be amplified via high-voltage transistor 16 and 17 to which the output of amplifier 14 is connected vertically,and output VA is drawn out from the emitter terminal of transistor 17 to be applied to the avalanche photo diode. At the same time, output VA is fed back to the plus terminal of amplifier 14 via feedback circuit 15. In such constitution, the adjustment coefficient of circuit 15 is controlled, thus ensuring a constant output signal level for the diode through a unified and simple adjustment.，下面是Apd temperature compensating circuit专利的具体信息内容。
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