quintessential
New Member
hello, so i have this circuit(suggested by friends on this forum) that provides me a DC voltage supply superimposed on an AC voltage supply. The DC supply is great but i'm trying to get a frequency rersponse of the AC signal up to 10MHZ.The key is the capacitor in the circuit.It is what couples the AC and DC sources together but as you can see it creates a filter that slightly attenuates my AC signal.Basically i'm asking if anyone is savvy with capacitors and can offer a suggestion as to the type(electrolytic,ceramic.....) and value(10pF 100nF) that would give me the best and widest frequency response.