# I have problem with sampling Frequency when I use ACME.jl

**URL:** <https://discourse.julialang.org/t/i-have-problem-with-sampling-frequency-when-i-use-acme-jl/62082>\
**Category:** Modelling & Simulations\
**Tags:** question, package, plotting\
**Created:** [May 30, 2021, 11:28am UTC](https://discourse.julialang.org/t/i-have-problem-with-sampling-frequency-when-i-use-acme-jl/62082 "2021-05-30T11:28:49Z")\
**Posts on this page:** 1\
**Showing post:** 5

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**Author:** ![Iulian.Cioarca](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/iulian.cioarca/32/30166_2.png) [@Iulian.Cioarca](https://discourse.julialang.org/u/Iulian.Cioarca)\
**Post date:** [May 30, 2021, 6:43pm UTC](https://discourse.julialang.org/t/i-have-problem-with-sampling-frequency-when-i-use-acme-jl/62082/5 "2021-05-30T18:43:23Z")

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It’s best to format your code example using `back quotes `. See: [Please read: make it easier to help you](https://discourse.julialang.org/t/psa-make-it-easier-to-help-you/14757)

I never actually used this package (never knew it existed, but it’s really cool!) but I don’t think you placed the current probe correctly in order to measure D1 current. I tried this configuration, with the current probe between D1- and D2-:

```julia
using ACME
using Plots
plotly()
Plots.PlotlyBackend()

circ = @circuit begin
    j_in = voltagesource()
    l1 = inductor(1e-3)
    d1 = diode(;is=1e-12, η = 1)
    d2 = diode(;is=1e-12, η = 1)
    d3 = diode(;is=1e-12, η = 1)
    d4 = diode(;is=1e-12, η = 1)
    c1 = capacitor(1e-3)
    r1 = resistor(20)
    i_out = currentprobe()

    j_in[+] ⟷ l1[1]
    j_in[-] ⟷ gnd
    l1[2] ⟷ d1[+] ⟷ d4[-]
    gnd ⟷ d2[+] ⟷ d3[-]
    d1[-] ⟷ i_out[+]
    i_out[-] ⟷ d2[-] ⟷ r1[1] ⟷ c1[1]
    d4[+] ⟷ d3[+] ⟷ r1[2] ⟷ c1[2]
end

fs = 44100;
fsig = 1000;
dt = 1/fs
t = 0:dt:1
model = DiscreteModel(circ, 1/fs)
y = run!(model, 10*sin.(2*π*fsig .* t'))

plot(t, y')

```

If you mess around with the frequencies or components, your simulation will not converge. I’m not sure why, but it converges if I lower the sine amplitude.

Is this a homework?

Also, please avoid double posting. It only clutters the discourse dashboard and makes responses harder to track.

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