slewFilter(a,slewRate)

Implements an analog filter whose response is based on a given slew rate.

Syntax

o_slewFilter(a,slewRate)

a: waveform - input waveform

slewRate: numeric - slew rate in 1/s - scalar for bidirectional, 1D array for separate rates - [pos rate, neg rate]

return: waveform- input transformed by the slew-based filter

Usage

Typical usage is to model a system that can only change at up to a given speed due to finite drive ability. Classic case is a capacitor being charged at the maximum available current which limits that change in voltage per second.

Location

menu: veeos ==> Signal processing ==> Modules ==> slewFilter

library: sigLib

Example

 
The original signal is in cyan. The yellow shows slew in both directions at the same rate (o_slewRate(A,20)), the magenta is slewed in both directions (o_slewRate(A,[40,20]) but at different rates.

Notes

Reference

Dependencies

Supported On

VEE 7.0+, all platforms

See Also

analogFilter, envelope, decayFilter