Hi,
In the attached circuit, i have 2 diodes used for isolating the charge on the capacitor C2 which will be a mechanically variable capacitor in reality. However, the issue I am having is that at the point "test", the input AC is not being converted to DC. If I replace the ZHCS350 diodes with virtual diodes and chage the junction voltage to 0.2V, the circuit works as i'd expect. Once I use non-ideal diodes though, i just get the same AC signal at "test" as I do at "V_in". I'm guessing this has to do with the fact that I'm using a capacitive load and the diode resistance is not high enough compared to it but I dont really know what to do to fix this.
Any help is greatly appreciated.