Below link leads to the Simulink model of the closed loop SEPIC:
DOWNLOAD NOW
In this mode of operation, the duty cycle is set through feedback loop. The main advantage here is the automation being involved.
The feedback consists of a reference voltage level which is equal to the desired output level, a PI Controller, saturation, gain and a relational operator.
The output voltage obtained and the reference voltage is passed through a subtract block to obtain error voltage. This is then given to the PI Controller which produces a DC level in accordance with the error voltage. Furthermore, saturation ensures that the DC level is well within a specified range.
The above DC voltage output obtained and a Sawtooth wave is given to the relation operator. Here duty cycle of the resulting rectangular pulses is determined by the DC voltage.
DOWNLOAD NOW
In this mode of operation, the duty cycle is set through feedback loop. The main advantage here is the automation being involved.
The feedback consists of a reference voltage level which is equal to the desired output level, a PI Controller, saturation, gain and a relational operator.
The output voltage obtained and the reference voltage is passed through a subtract block to obtain error voltage. This is then given to the PI Controller which produces a DC level in accordance with the error voltage. Furthermore, saturation ensures that the DC level is well within a specified range.
The above DC voltage output obtained and a Sawtooth wave is given to the relation operator. Here duty cycle of the resulting rectangular pulses is determined by the DC voltage.
Thanks for posting the above content
ReplyDelete