Digital Control Module

For Digital Control Systems

Download Flier

The following shows a power factor correction circuit with the digital control. The zero-order hold simulates the sampling effect, and the digital PI controller is implemented by a proportional gain block and a discrete integrator. - Enlarged View

Input voltage and current waveforms -
Enlarged View

The Digital Control Module is an add-on module to the PSIM software. It is provided to analyze control systems in z-domain. It can be used to simulate the performance of digital control loops, study digital filters, and evaluate various effects in digital control, such as truncation errors, sampling/hold delay, and computational delay.

This module is ideally suited to:

Simulate digital control schemes for microprocessors
or DSP implementation,

To perform digital signal processing.

You can, for example, study the effect of A/D quantization errors, and determine whether a particular sampling rate will be able to achieve required performance specifications.

The Digital Control Module contains the following elements:

Zero-order hold
Unit delay
Z-domain transfer function block
General digital filters
FIR digital filters
Discrete integrator
Resetable discrete integrator
Discrete differentiator
Quantization block
Circular buffer
Convolution block
Memory read block
Vector array
Stack element

Key Features:

Easy to use
Quick and convenient construction of any control circuits
Common-used control elements

Digital Control Library (partial preview) - Enlarged View