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Non-inverting type ideal diode circuit formed by the OP ampl

2015-01-03 00:08  
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Non-inverting type ideal diode circuit formed by the OP amplifier
Rectifier power supply circuit is indispensable one of the power supply circuits, even if except the power supply circuit, it is also often used in measuring how the current (AC) signal is converted into direct current (DC). But when high-precision AC to DC conversion is carried out, there is a problem caused by the diode forward voltage VF, that the temperature coefficient of the insensitive zone and VF is about-2mV / ℃. Therefore, the high-precision AC to DC conversion is necessary, OP amplifier would be a common element, meanwhile the diode is inserted in the feedback loop, which is ideal diode circuit.