# Questions tagged [digital-control]

Controller gains, filters and logic is implemented in a digital computer such as a micro controller, PC, Single Board Computer, PLC, FPGA etc. Controller is almost always a discrete-time controller; usually described as being in the z-domain.

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### Should I limit inrush current of this MOSFET buck regulator?

I am building a digitally controlled constant current switching power supply. This circuit will deliver no more than 105 Watts at around 20V from an AC-DC DIN rail SMPS of 250W. You can see and ...
499 views

### How to integrate dead-zone in the PID controller implemented in the velocity form?

I have the below given implementation of the PID controller. ...
• 1,103
210 views

### Negative gain value in stability of a system

Let D(z) = k, where k is a constant gain. When I want to find the range of k such that the system is stable, the range of k is included with negative value (eg -5<k<5). My question is, can the ...
101 views

### Sampling in Digital Controller

I have a digital control loop in which the controller (difference equation) is getting calculated at a rate of 10kHz. The feedback signal is at a much lower sampling frequency around 100Hz. The loop ...
• 1
111 views

### Converting an analog controller into a digital controller... Theory

I have created a stable PI s domain controller for my system. When I go to digitize it in PSIM by adding a ZOH and a delay block and by converting the PI controller into the z domain using backward ...
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51 views

### Matlab transfer functions

I used the "c2d" to discretize a transfer function initially but MATLAB automatically took it as zero order hold because I didn't specify any kind of hold. The result for the zero order hold is ...
179 views

### Digital signals in RF PCB

I'm working on a RF 4 layer PCB that includes RF switch (PE426412). This Ic is controlled by 4 digital pins.These digital signals differentially come from out of the board and by ADM485ARZ converts to ...
164 views

### Designing a counter

I want to design a counter which doesn't increments value every rising clock pulse(assuming positive edge triggered). Say I have a FSM which has 4 states . Only after traversing of the 4 states , I ...
1 vote
111 views

### Controller for a DC motor for moving 18 cm constantly

I am working on designing a micro mouse that solves a maze. The objective is to reach the centre of the maze. The mouse needs to move one block distance at a time, which is 18 m. Currently, I am using ...
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1 vote