Survey device of MC1496 amplitude modulation's AC and DC voltage stack coefficient

The utility model provides a survey device of MC1496 amplitude modulation's AC and DC voltage stack coefficient, the device include an integrated IC of dual input simulation multiplier MC1496, one + 12V and one two powers of 8V are in order to guarantee the inside two amplification state of differential pair department of MC1496, adjustable resistance rp2 guarantees that whole circuit is in balanced state, the electric bridge that rp1 and resistance R1, R2, R3, R4 constitute can change UAB's voltage, let UAB voltage the positive value, 0 and the negative value between change for the modulationcircuit has ordinary amplitude -modulated wave, critical amplitude modulation, crosses amplitude modulation and bilateral amplitude modulation change. Analysis results through this circuit arrangement calculates AC and DC voltage stack coefficient, through AC and DC voltage stack coefficient, solves the difference problem because of direct current and alternating current signal's stack brings. 本实用新型提供了种MC1496振幅调制的交直流电压叠加