Interactive Parallel Diode Clippers Simulator (Noise Remover)

 

1. Noise Remover (Dead-Zone Clipper - Image 1)

Signal Amp (Vp):

Noise Level:

Deadzone V1:

Deadzone V2:

--- Noisy Input    — Cleaned Output (Series)

2. Dual Parallel Clipper (Shunt - Image 2)

Signal Amp (Vp):

Noise Level:

Clip V1 (Pos):

Clip V2 (Neg):

--- Noisy Input    — Clipped Output (Shunt)

Theory & Transfer Mathematics

Both circuits utilize a combination of Diodes and DC Reference Voltages to manipulate the input signal $v_i$. We assume a Diode Barrier Voltage ($V_d$) of $0.7V$.

1. Noise Remover Logic

This is a Series-Parallel Clipper. It creates a "Dead Zone" around 0V where the output is zero, effectively removing low-level noise.

Thresholds:
$V_{positive} = V_1 + V_d$
$V_{negative} = -(V_2 + V_d)$

Output Transfer:

• If $v_i > V_{pos}$: v_o = v_i - V_{pos}
• If $v_i < V_{neg}$: v_o = v_i - V_{neg}
• Otherwise: v_o = 0

2. Dual Level Clipper Logic

This is a Shunt Clipper. Instead of shifting the signal, it "clamps" or flattens the peaks when the diodes conduct to ground.

Clip Levels:
$L_{upper} = V_1 + V_d$
$L_{lower} = -(V_2 + V_d)$

Output Transfer:

• If $v_i > L_{upper}$: v_o = L_{upper}
• If $v_i < L_{lower}$: v_o = L_{lower}
• Otherwise: v_o = v_i

Simulation Note: The "Noisy" effect is achieved by adding a high-frequency random component:
v_noisy = A*sin(ωt) + (Math.random() - 0.5) * Noise_Level